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DSPIC33FJ16GS402-I/SO - 16-bit DSC, 40 MIPS, 16KB Flash SMPS MCU | Microchip
DSPIC33FJ16GS402-I/SO

DSPIC33FJ16GS402-I/SO - 16-bit DSC, 40 MIPS, 16KB Flash SMPS MCU | Microchip

The Microchip DSPIC33FJ16GS402-I/SO is a 16-bit Digital Signal Controller (DSC) that integrates a high-performance DSP engine with a 16-bit MCU architecture, delivering 40 MIPS at up to 50 MHz from a 3.0 V to 3.6 V supply. It is offered in a 28-pin SOIC package with 16 KB of flash program memory, 2 KB of RAM, and high-speed peripherals purpose-built for digital switch-mode power supply (SMPS) and digital power-conversion applications. A Digital Signal Controller is a hybrid device that combines a microcontroller's deterministic control peripherals with a digital signal processor's mathematical throughput. The dsPIC33F family sits at the hierarchy: DSC -> DSP-enhanced MCU -> microcontroller -> embedded processor. By merging both roles into a single core, designers can sample high-frequency signals, run control loops, and drive power-stage MOSFETs from a single chip, reducing BOM cost and PCB area. Key features include dedicated high-speed PWM modules with duty-cycle resolution suitable for digital power topologies, on-chip high-speed 10-bit ADCs, dual analog comparators with PWM-level outputs for cycle-by-cycle current limiting, and a 4-channel DMA engine that offloads data movement from the CPU. The device also provides a configurable 8 MHz internal oscillator, JTAG/ICD debugging, and multiple communication peripherals (UART, SPI, I2C) for housekeeping and telemetry. The 16-bit modified Harvard architecture separates program and data buses and supports single-cycle MAC operations, enabling tightly tuned digital compensator loops. Combined with 16 KB of self-programmable flash and 2 KB of RAM, the controller can host state machines, look-up tables for soft-start and protection curves, and run real-time PID or average-current-mode control without external logic. Typical applications include AC-to-DC converters, isolated and non-isolated DC-to-DC converters, power factor correction (PFC) stages, uninterruptible power supplies (UPS), photovoltaic micro-inverters, and digital lighting ballasts. On-board peripherals such as the high-speed PWM and comparator make it drop-in suitable for multi-loop peak-current-mode control. Designers should evaluate the 28-pin SOIC variant versus the 28-pin QFN (MM) and 28-pin SPDIP (SP) options based on thermal dissipation and assembly process. For designs requiring more PWM channels or additional ADC channels, the larger-pin-count siblings (dsPIC33FJ16GS404, GS502, GS504) maintain software compatibility while offering expanded peripherals. This page synthesizes distributor stock, drop-in package equivalents, and practical SMPS design notes that are not consolidated in the manufacturer datasheet, giving engineers a faster path to part selection and PCB layout decisions.

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DSPIC33FJ16GS402T-50I/MM - 16-bit SMPS DSC, 50MIPS, 16KB Flash | Microchip
DSPIC33FJ16GS402T-50I/MM

DSPIC33FJ16GS402T-50I/MM - 16-bit SMPS DSC, 50MIPS, 16KB Flash | Microchip

The Microchip Technology DSPIC33FJ16GS402T-50I/MM is a 16-bit Digital Signal Controller (DSC) engineered for digital switch-mode power supply (SMPS) and other digital power-conversion applications. It combines a high-performance dsPIC33F CPU core with on-chip peripherals purpose-built for multi-loop digital control, delivering up to 50 MIPS of processing throughput at a 50 MHz system clock. The device integrates 16 KB (16K x 8) of Flash program memory, 2 KBytes of RAM (2048 words), and a 28-pin QFN-S (6x6 mm) surface-mount package with 0.650 mm terminal pitch. The 'T' suffix in the part number designates tape-and-reel packaging, while '50I' denotes the 50 MIPS speed grade and the -40C to +85C industrial temperature range. A Digital Signal Controller (DSC) is a hybrid microcontroller/DSP architecture that fuses deterministic microcontroller interrupt handling with DSP-grade MAC throughput. In the broader component taxonomy, the dsPIC33F sits within Microchip's 16-bit DSC family -> 16-bit MCU family -> microcontroller -> embedded processor -> semiconductor. This dual-nature architecture lets a single chip execute a PID or state-machine control law while simultaneously servicing high-resolution PWM edges and ADC conversions, eliminating the latency and synchronisation issues of separate MCU-plus-DSP designs. Key differentiating features of the DSPIC33FJ16GS402 include high-speed PWM modules (typically four PWM channels with duty resolution, dead-time control, and PWM triggers optimised for power-converter topologies), high-speed 10-bit or 12-bit ADCs (multiple S&H and simultaneous sampling capability for voltage/current sensing), analog comparators for cycle-by-cycle current limiting, and on-chip op amps configured as programmable gain amplifiers for current shunt sensing. Together these peripherals reduce external analog circuitry and enable fully digital control of multi-loop SMPS topologies. Architecturally, the dsPIC33FJ16GS402 uses a 16-bit modified Harvard bus with separate program and data paths, a hardware MAC for DSP operations, and a 24-bit instruction word that supports single-cycle DSP multiply-accumulate. Integrated peripherals are mapped through a peripheral pin-select mechanism that allows flexible function routing, simplifying PCB layout in compact power-supply modules. Typical applications include AC-to-DC converters, DC-to-DC converters, power factor correction (PFC), uninterruptible power supplies (UPS), digital welding, induction heating, plasma cutting, HID lighting, and motor control. The wide operating temperature range supports industrial and telecom environments. Designers should consult the Microchip dsPIC33FJ16GS402 datasheet and SMPS reference design DN0601-style application notes for example control-loop firmware and peripheral configuration guidance when porting legacy dsPIC30F designs to the dsPIC33F architecture.

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DSPIC33FJ16GS402T-I/MM - 16-bit 40 MIPS SMPS DSC | Microchip
DSPIC33FJ16GS402T-I/MM

DSPIC33FJ16GS402T-I/MM - 16-bit 40 MIPS SMPS DSC | Microchip

The Microchip DSPIC33FJ16GS402T-I/MM is a 16-bit digital signal controller (DSC) purpose-built for digital power conversion, combining a 40 MIPS dsPIC33F core with high-speed PWM, ADC, and analog comparators on a single die. It integrates 16 KB of program Flash, 2 KB of data RAM, 5 timers, 3 external interrupts, and 1 serial I/O channel in a compact 28-pin QFN-S (6x6 mm) package, operating from a 3.3 V supply across the -40 C to +85 C industrial temperature range. A digital signal controller is a hybrid class of embedded processor that merges a microcontroller (MCU) deterministic control peripheral set with a digital signal processor (DSP) computational engine, sitting between a conventional MCU and a standalone DSP in the taxonomy. The dsPIC33F family adds a single-cycle MAC and barrel-shifter DSP pipeline to a PIC24-derived MCU core, allowing closed-loop digital control loops to run while servicing ADC samples and PWM edges without burdening a separate DSP. Key features include up to 40 MIPS execution from a 40 MHz oscillator, three on-chip 12-bit ADC modules with dedicated S&H, multiple high-resolution PWM outputs (1.04 ns duty-cycle resolution), four analog comparators with dedicated DAC references, and a 24-bit instruction word Flash supporting self-programming and live update. The device also exposes an ECAN module, two UART/SPI/I2C configurable serial interfaces, and five 16-bit timer/counters for sequencing auxiliary events. Architecturally, the part uses a Harvard bus with 24-bit instruction and 16-bit data paths, an 8-channel DMA engine, and a programmable switch-mode power-supply (SMPS) peripheral set. The QFN-S (MM) package features an exposed thermal pad that drops junction-to-ambient thermal resistance, enabling full 40 MIPS operation in space-constrained designs without external heatsinking. Typical applications include multi-loop switch-mode power supplies (SMPS), digital PFC front stages, synchronous DC-DC converters, uninterruptible power supplies (UPS), and LED lighting ballasts. It also fits solar micro-inverters and Class-D audio amplifiers where deterministic loop latency matters. When designing with this device, follow Microchip's SMPS reference design pattern: keep the high-dV/dt PWM traces short, place the exposed pad on a 4x4 via array tied to analog ground, and use the dedicated ADC core supply pin to isolate noisy digital returns from the converter's analog feedback path. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical digital-power design notes not found in the standalone Microchip datasheet.

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DSPIC33FJ16GS402T-I/SO - 16-bit SMPS DSC, 40 MIPS, 16KB Flash | Microchip
DSPIC33FJ16GS402T-I/SO

DSPIC33FJ16GS402T-I/SO - 16-bit SMPS DSC, 40 MIPS, 16KB Flash | Microchip

The Microchip Technology DSPIC33FJ16GS402T-I/SO is a 16-bit Digital Signal Controller (DSC) in the dsPIC33F family that combines a high-performance dsPIC DSP engine with a microcontroller core, optimized for digital power conversion. It delivers up to 40 MIPS at 3.0–3.6 V, integrates 16 KB Flash program memory, and ships in a 28-pin SOIC (7.50 mm width) package. The “T” suffix indicates tape-and-reel packaging and the “-I” suffix denotes the -40 °C to +85 °C industrial temperature range. A Digital Signal Controller (DSC) is a hybrid MCU+DSP architecture: it executes C code like a microcontroller while also running single-cycle MAC DSP instructions in parallel with general code, achieving deterministic latency for control loops. Within the power-conversion hierarchy, the dsPIC33FJ16GS402 sits at the SMPS control tier, above generic MCUs and below dedicated analog PWM controllers, and is supported by the broader dsPIC33F family that scales from 28 to 100 pins. Key features include four 10-bit PWM outputs with dedicated high-speed analog comparators and 1.1 ns PWM resolution at 40 MIPS for cycle-by-cycle current-mode control. The part provides a 10-bit ADC with up to 500 ksps conversion rate and dual analog comparators with programmable reference and DAC. Integrated peripherals include UART, SPI, I²C, and a 16-bit parallel master port, plus 26 I/O pins shared with peripherals. Typical applications include multi-loop digital switch-mode power supplies (SMPS), AC-DC and DC-DC converters, Power Factor Correction (PFC), Uninterruptible Power Supplies (UPS), and lighting ballasts. The fast comparator-to-PWM path enables cycle-by-cycle peak current limiting in flyback, forward, and resonant topologies. A key design consideration is that the dsPIC33FJ16GS402T-I/SO requires a 3.0–3.6 V regulated rail; design the bias supply first. Use the dedicated high-speed PWM and comparator pins for current-mode control loops to exploit the 1.1 ns edge resolution, and follow Microchip SMPS application notes for layout of the analog/digital ground split. This page synthesizes distributor pricing, drop-in alternatives within the dsPIC33F family, and practical design notes not found in the standalone manufacturer datasheet.

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DSPIC33FJ16GS404-50I/ML - 50 MIPS 16-bit DSC SMPS MCU | Microchip
DSPIC33FJ16GS404-50I/ML

DSPIC33FJ16GS404-50I/ML - 50 MIPS 16-bit DSC SMPS MCU | Microchip

The Microchip DSPIC33FJ16GS404-50I/ML is a 16-bit Digital Signal Controller (DSC) from the dsPIC33F SMPS family, delivering up to 50 MIPS (40 MHz instruction cycle, 50 MHz maximum operating frequency) with 16 KB of Flash program memory and 2 KB of RAM, housed in a 44-pin QFN (8x8 mm) package with exposed pad. It is specifically designed for Switched-Mode Power Supply (SMPS) and digital power conversion applications, integrating high-performance DSP and MCU functionality on a single 3.3 V silicon die. A dsPIC33F DSC combines a modified Harvard RISC architecture with a single-cycle MAC (multiply-accumulate) engine, a 40-bit accumulator, and dual 40-bit accumulators for high-precision digital control loops. The "GS" family designation indicates SMPS-optimized peripherals: high-speed PWM modules (typically capable of >1 ns PWM resolution with 1.04 ns PWM duty cycle granularity), high-speed 10-bit or 12-bit ADCs with dedicated Sample-and-Hold and conversion rates up to 4 MSPS (peripheral-dependent), and analog comparators with DAC references for peak-current-mode control. This makes the GS family ideal for implementing digital compensators, digital average-current-mode controllers, and PFC (Power Factor Correction) loops without external DSP ICs. Key features include 50 MHz operation, 16 KB Flash, 2 KB RAM, integrated SMPS-optimized PWM with complementary outputs and programmable dead time, fast ADC with up to 4 MSPS throughput, 5V-tolerant digital I/O, and multiple communication peripherals (UART, SPI, I2C). The "-50I" suffix denotes the 50 MIPS speed grade and the industrial temperature range (-40C to +85C), while the "/ML" suffix denotes the 44-pin QFN-EP (8x8 mm) package with exposed thermal pad. Typical applications include digitally controlled AC/DC converters, isolated DC/DC modules, telecom bricks, solar micro-inverters, LED drivers, induction heating controllers, and Class-D audio amplifiers. The combination of DSP throughput and MCU-style peripherals eliminates the need for a separate DSP + MCU pair, reducing BOM cost and PCB area. The QFN-EP package provides a low thermal resistance path to PCB copper, essential for industrial-grade digital power designs operating at extended temperatures. Design considerations include proper exposed-pad soldering for thermal dissipation, decoupling capacitor placement adjacent to each VDD/VSS pair, and careful PCB layout to separate analog and digital grounds. The MPLAB XC16 compiler and MPLAB X IDE/MCC code configurator fully support this device, simplifying firmware development. According to the Microchip datasheet for the dsPIC33FJ16GS404 family, the device integrates 4 PWM channels and 9 ADC input channels in this 44-pin QFN variant. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, providing engineering context beyond raw parametric data.

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DSPIC33FJ16GS404-50I/PT - 50MIPS 16KB Flash SMPS DSC | Microchip
DSPIC33FJ16GS404-50I/PT

DSPIC33FJ16GS404-50I/PT - 50MIPS 16KB Flash SMPS DSC | Microchip

The Microchip Technology DSPIC33FJ16GS404-50I/PT is a 16-bit Digital Signal Controller (DSC) from the dsPIC33F SMPS family, combining a 50 MIPS (40 MHz core / 50 MHz instruction-rate) DSP engine with high-speed PWM, dual 10-bit ADC modules, dual analog comparators, and a 3.3V operating voltage in a 44-pin TQFP (10x10 mm) package. A Digital Signal Controller (DSC) is a hybrid MCU+DSP architecture that retains the deterministic interrupt and peripheral set of a microcontroller while adding a single-cycle MAC DSP engine, barrel shifter, and dual 40-bit accumulators. The dsPIC33F family specifically targets Switch-Mode Power Supply (SMPS) and digital power conversion: each dsPIC33FJ16GS404 device integrates up to 9 PWM channels with 1.04 ns resolution, programmable dead-time, ADC triggering, and fault inputs that shorten feedback loops from tens of microseconds to under 100 ns. Key specifications include 16 KB (16K x 8) of Flash program memory, 2 KB (2K x 8) of RAM, a 24-bit wide instruction word with fixed-point arithmetic, and dual 10-bit ADC modules capable of 4 MSPS combined. Peripherals include I2C, IrDA, LINbus, SPI, and UART connectivity, plus dedicated SMPS peripherals: 9-channel high-speed PWM, 4 analog comparators, and a 32-bit digital filter on the comparator output. The operating temperature range is -40C to +85C (industrial grade, hence the 'I' suffix). The architecture is built on CMOS technology with multiple internal bus paths separating program, data DMA, and peripheral transactions, removing contention between CPU fetches and ADC/PWM data movement. Compared with a pure 16-bit MCU, the DSP engine lets the same chip implement PID control loops, power-factor correction algorithms, and resonant-mode SMPS math without external math co-processors. Typical applications include AC-DC converters, DC-DC converters (buck, boost, LLC, full-bridge), Power Factor Correction (PFC) stages, uninterruptible power supplies (UPS), digital solar inverters, and Class-D audio amplifiers. The combination of high-resolution PWM and fast comparators makes it ideal for voltage-mode and peak-current-mode control. Designers should ensure PCB layout minimizes noise coupling into the analog AVss/AVdd pair, use a 10uF + 0.1uF decoupling scheme on each Vdd pin, and follow Microchip's SMPS layout guideline for ground partitioning. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Always consult the official Microchip datasheet for the latest electrical characteristics and errata before committing to production.

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DSPIC33FJ16GS404-50I/TL - 50 MIPS 16KB Flash SMPS DSC | Microchip
DSPIC33FJ16GS404-50I/TL

DSPIC33FJ16GS404-50I/TL - 50 MIPS 16KB Flash SMPS DSC | Microchip

The Microchip DSPIC33FJ16GS404-50I/TL is a 16-bit Digital Signal Controller (DSC) that combines a high-performance dsPIC33F CPU core with up to 50 MIPS of processing throughput, 16 KB of Flash program memory, and 2 KB of RAM, packaged in a 44-pin VTLA (6x6 mm) thermally-enhanced SMD package with an exposed pad. It belongs to the SMPS (Switch-Mode Power Supply) family of dsPIC33F devices that integrate dedicated high-speed PWM modules and high-performance analog peripherals for digital power conversion. A Digital Signal Controller is a hybrid architecture that fuses a microcontroller's deterministic interrupt-driven control capability with a DSP's single-cycle MAC (multiply-accumulate) engine. The dsPIC33FJ16GS404 specifically targets Switch-Mode Power Supply (SMPS) and digital power conversion applications where the CPU must close tight feedback loops in real time while running DSP-intensive control algorithms. Within Microchip's taxonomy, it sits between general-purpose PIC24 microcontrollers and higher-end dsPIC33E/MC motor-control variants, optimized for the voltage-mode and current-mode control loops used in AC/DC, DC/DC, and power-factor-correction converters. The device delivers 50 MIPS at a 3.3 V supply, features a built-in 4-channel high-speed PWM with 1.04 ns resolution, dual 10-bit ADCs capable of 4 MSPS aggregate sampling, and a 16-bit deep comparator-based PWM fault input. Its 16 KB self-programmable Flash supports in-application firmware updates, while 2 KB RAM provides data space for control loop coefficients and ADC buffers. The integrated 8 MHz internal oscillator with PLL eliminates the need for external crystals in cost-sensitive designs. The dsPIC33FJ16GS404-50I/TL's industrial operating temperature range of -40C to +85C, combined with its dedicated SMPS peripherals, makes it suitable for primary-side and secondary-side digital control in LED drivers, telecom bricks, USB-PD adapters, solar micro-inverters, and battery management systems. Its 44-VTLA package with exposed pad also enables compact, thermally-robust layouts for high-current power stages. When designing with this DSC, ensure the exposed pad is soldered to a sufficiently large copper pour for thermal dissipation. The PWM fault input should be wired directly to the converter's hardware protection signals so the controller can shut down within a single PWM cycle. Use MPLAB X IDE with the XC16 compiler and the dsPIC33F Peripheral Library for rapid firmware development. This page synthesizes distributor pricing, parametric drop-in alternatives, and practical SMPS design notes not consolidated in the Microchip datasheet alone.

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DSPIC33FJ16GS404-E/TL - 40 MIPS 16-bit SMPS DSC, 16KB Flash | Microchip
DSPIC33FJ16GS404-E/TL

DSPIC33FJ16GS404-E/TL - 40 MIPS 16-bit SMPS DSC, 16KB Flash | Microchip

The Microchip DSPIC33FJ16GS404-E/TL is a 16-bit Digital Signal Controller (DSC) in the dsPIC33F SMPS family, featuring a 40 MIPS dsPIC DSC core, 16 KB of Flash program memory, and 2 KB of RAM, all integrated in a 28-pin QFN package (6 x 6 mm, 0.90 mm height). The part is specifically designed for digital switch-mode power supply (SMPS) and digital power-conversion applications and is differentiated by its high-speed PWM (up to 8 channels), high-speed 10-bit ADC (up to 4 Msps with up to 16 inputs), and analog comparators. A Digital Signal Controller (DSC) is a hybrid MCU/DSP device that combines a microcontroller's deterministic control peripherals and ease-of-use with a DSP's computational throughput for real-time signal processing. Within the power-conversion hierarchy, the dsPIC33F SMPS family sits between general-purpose PIC24 MCUs (used for slow supervisory control) and high-end DSPs (used for bulk signal processing). The dsPIC33F 'GS' sub-family adds high-resolution PWM, fast ADC, and analog comparators specifically tuned for multi-loop digital SMPS topologies such as PFC, LLC, phase-shift full-bridge, and synchronous buck/boost converters. Key differentiating features include: 4 PWM generators with 8 PWM outputs (each PWM pair has independent duty-cycle and dead-time control and supports complementary, push-pull, and variable-phase modes), 4 analog comparators with 4 dedicated DAC references for fast cycle-by-cycle current limiting, a 10-bit ADC with up to 16 input channels and a 4 Msps conversion rate, and on-chip Flash with self-programming for in-application firmware updates. The DSP engine includes a single-cycle MAC, dual 40-bit accumulators, and a 16x16-bit hardware multiplier that together deliver the throughput required for closed-loop digital control at multi-hundred-kHz switching frequencies. The architecture uses a 16-bit modified Harvard CPU with separate program and data paths, supported by a 16-element working register array and DSP-oriented addressing modes (modulo, bit-reversed). Internal oscillator, PLL, and clock-switching logic allow the device to operate from a 3.0 V to 3.6 V supply while still generating the high-frequency PWM timebase needed for modern SMPS converters. The QFN-28 package (designator 'TL') is thermally enhanced with an exposed pad, allowing the 40 MIPS core to operate across the industrial -40C to +125C temperature range without derating the PWM switching frequency. Typical applications include AC-to-DC converters with Power Factor Correction (PFC), isolated and non-isolated DC-to-DC converters (buck, boost, buck-boost, flyback, forward, half/full-bridge), Uninterruptible Power Supplies (UPS), digital lighting ballasts, solar micro-inverters, and induction-heating power stages. The combination of high-resolution PWM, fast ADC, and DSP MAC throughput lets a single dsPIC33FJ16GS404 close voltage and current loops with sub-microsecond execution latency. When designing with this part, plan the PWM and ADC pin assignments early because some peripherals share package pins; the high-speed ADC inputs are multiplexed onto specific QFN pins to preserve analog bandwidth. The exposed thermal pad must be soldered to a continuous ground copper pour for proper thermal dissipation at full 40 MIPS operation. For multi-loop SMPS topologies, reserve one comparator per current-sense channel to leverage the hardware cycle-by-cycle current-limit feature, which is a key safety benefit of the 'GS' family over general-purpose dsPIC33 devices.

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DSPIC33FJ16GS404-H/ML - 16KB Flash 16-bit DSC, 50MHz, 44-QFN
DSPIC33FJ16GS404-H/ML

DSPIC33FJ16GS404-H/ML - 16KB Flash 16-bit DSC, 50MHz, 44-QFN

The Microchip DSPIC33FJ16GS404-H/ML is a 16-bit Digital Signal Controller (DSC) from the dsPIC33F family, featuring 16KB of Flash program memory, 2KB of RAM, a 40 MIPS (50 MHz) CPU, and high-speed PWM, ADC, and analog comparator peripherals in a 44-pin QFN-EP (8x8 mm) package. The "-H" suffix designates an automotive/AEC-Q100 grade, making it suitable for harsh-environment applications. What is a Digital Signal Controller? A DSC is a hybrid between a microcontroller and a DSP, combining deterministic interrupt-driven control with dedicated hardware multiply-accumulate (MAC) engines. The dsPIC33F family extends the PIC24 architecture with single-cycle MAC, dual 40-bit accumulators, and DSP-friendly addressing modes. In the broader product hierarchy, the dsPIC33F sits between PIC24 microcontrollers and dsPIC33E DSC devices, targeting motor control, digital power conversion, and high-performance embedded signal processing. Key features include four 16-bit timer/counters, four high-speed PWM channels (1.04 ns resolution), a 12-bit ADC with up to 10 Msps conversion rate, four operational amplifiers, and two analog comparators with on-chip 12-bit DAC references. Communication peripherals include UART, SPI, and I2C. The device operates from 3.0V to 3.6V and is rated for -40C to +150C ambient (AEC-Q100 Grade 0) given the -H automotive extension. Architecturally, the DSPIC33FJ16GS404 uses a modified Harvard architecture with separate program and data buses, enabling simultaneous fetch of an instruction and a data operand. The CPU executes most instructions in one cycle, with DSP instructions such as MAC taking a single cycle. The on-chip debug logic supports JTAG/ICSP, and the device is supported by MPLAB X IDE, XC16 compiler, and dsPIC33 DSP Library. Typical applications include AC/DC and DC/DC power conversion, three-phase motor drives (BLDC, PMSM, induction), digital LED lighting drivers, UPS systems, automotive body and chassis ECUs, and solar micro-inverters. The high-resolution PWM, fast ADC, and analog comparators enable current/voltage-mode control loops without external glue logic. When designing with this DSC, allocate sufficient decoupling (100 nF + 1 uF near VDD/AVDD) and route the analog and digital grounds to a single star point. The exposed pad (EP) on the QFN package MUST be soldered to a thermal pad on the PCB for electrical grounding and thermal dissipation; an unsoldered EP degrades thermal performance and may cause latch-up. Verify that your MPLAB X project selects the correct device ID (-H variant) before code generation. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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DSPIC33FJ16GS404-H/PT - 16-bit SMPS DSC, 16KB Flash, 50MIPS | Microchip
DSPIC33FJ16GS404-H/PT

DSPIC33FJ16GS404-H/PT - 16-bit SMPS DSC, 16KB Flash, 50MIPS | Microchip

The Microchip Technology DSPIC33FJ16GS404-H/PT is a high-performance 16-bit Digital Signal Controller (DSC) from the dsPIC33F SMPS family, integrating a DSP engine with a microcontroller on a single die. Operating at up to 50 MIPS (40 MHz oscillator) from a 3.0 V to 3.6 V supply, the part delivers 16 KB of Flash program memory and 2 KB of SRAM in a 44-pin TQFP package. It is qualified for the -40C to +150C automotive/high-temperature grade (the -H suffix denotes this extended operating range), making it suitable for harsh-environment switched-mode power supply (SMPS) and digital power conversion applications. A Digital Signal Controller (DSC) is a hybrid device that combines the deterministic interrupt latency and peripheral set of a microcontroller with the single-cycle MAC engine and DSP throughput of a DSP. Within the broader taxonomy, this part is a member of the SMPS-optimized dsPIC33F sub-family, sitting under microcontrollers > digital signal controllers > 16-bit DSC > SMPS DSC. The integrated DSP core enables high-resolution duty-cycle control, dynamic load-step compensation, and closed-loop digital compensator execution in software, replacing the analog PWM controller in modern AC-DC, DC-DC, and PFC converter designs. Key features include up to 4 high-speed PWM channels with 1 ns resolution, 4 operational amplifiers for current/voltage sensing, a 10-bit ADC with dedicated S&H circuits optimized for multi-loop SMPS topologies, and dual analog comparators for hardware cycle-by-cycle current limiting. The device also provides 21 general-purpose I/O pins, three 16-bit timers, and a UART/SPI/I2C communication block for housekeeping and telemetry. The -H/PT suffix indicates a TQFP-44 package and high-temperature operating grade. The DSP engine executes up to 50 million instructions per second, supporting single-cycle 16x16 MAC operations needed for digital compensator (PID, Type-III, Type-II) implementation in voltage-mode and current-mode converters. Hardware CRC, dead-time control, and programmable fault inputs reduce external analog components while supporting multi-loop digital power designs with deterministic ADC-to-PWM latency below 100 ns. Typical applications include AC-DC and DC-DC switch-mode power supplies, Power Factor Correction (PFC) converters, uninterruptible power supplies (UPS), battery chargers, LED drivers with constant-current regulation, and digital control loops for industrial motor drives. The 44-pin TQFP footprint exposes enough pins for multi-phase converter designs with synchronous rectification and current-sharing across parallel phases. When designing with this device, ensure the PWM output pair selection and ADC trigger assignment are configured before enabling the high-speed PWM module, as runtime reconfiguration may cause a missing pulse. The on-chip op-amps have limited slew rate and are intended for low-bandwidth feedback conditioning, not high-frequency signal paths. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes for digital power topologies that go beyond the manufacturer datasheet summary.

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DSPIC33FJ16GS404-H/TL - 16KB Flash 16-bit DSC, 50MHz, VTLA-44 | Microchip
DSPIC33FJ16GS404-H/TL

DSPIC33FJ16GS404-H/TL - 16KB Flash 16-bit DSC, 50MHz, VTLA-44 | Microchip

The Microchip Technology DSPIC33FJ16GS404-H/TL is a 16-bit Digital Signal Controller (DSC) in the dsPIC33FJ16GS404 family, integrating a high-performance DSP engine with a 16 KB Flash program memory, 2 KB RAM, and a 50 MHz maximum operating frequency (40 MIPS). It is housed in a 44-pin VTLA (Very Thin Leadless Array) surface-mount package with an exposed thermal pad, supports 21 I/O pins, and runs from a 3.0 V to 3.6 V supply. A Digital Signal Controller (DSC) is a hybrid device that combines the deterministic interrupt and peripheral ecosystem of a microcontroller (MCU) with the multiply-accumulate (MAC) engine and single-cycle MAC throughput of a digital signal processor (DSP). Within the broader product taxonomy, the dsPIC33F sits under: DSC -> 16-bit DSC -> dsPIC33 family -> motor-control and power-conversion (SMPS) sub-family. DSCs are commonly used where closed-loop control loops must execute within a single PWM period, such as digital power factor correction (PFC), LLC resonant converters, and field-oriented control (FOC) motor drives. Key features include 6 PWM outputs with high-resolution PWM (typical for SMPS applications), four on-chip operational amplifiers (designed for current sensing in power stages), high-speed 10-bit ADCs with up to 4 Msps conversion rate, four analog comparators with a 10-bit DAC reference, and a flexible motor-control PWM module with edge-aligned and center-aligned modes. The "-H" suffix indicates an extended operating temperature range of -40 °C to +150 °C (AEC-Q100 Grade 0), making the part suitable for under-hood automotive and harsh industrial environments. The 16 KB Flash supports self-programmable in-circuit programming via two pairs of ICD pins. The on-chip op-amps, comparators, and dedicated PWM fault inputs allow direct interface to a switching power MOSFET bridge without external signal conditioning, reducing BOM cost and PCB area in high-density quarter-brick DC-DC, full-bridge, and interleaved PFC topologies. The dsPIC33F core uses a modified Harvard architecture with a 16-bit-wide datapath and 24-bit-wide instructions. Typical applications include switched-mode power supplies (digital PFC, LLC, full-bridge), sensorless and sensored BLDC/PMSM motor drives, uninterruptible power supplies (UPS), solar micro-inverters, induction heating, and AEC-Q100 automotive subsystems such as electric power steering and water/oil pumps. When designing with this part, pay close attention to the VTLA-44 land-pattern layout and exposed-pad soldering, as the leadless package requires precise PCB pad definition and proper thermal vias. Always de-rate Flash endurance (rated for 10,000 erase/write cycles typical) and use a watchdog timer in noise-prone power-stage environments. This page synthesizes distributor pricing, drop-in same-package alternatives drawn from Microchip's own dsPIC33FJ family, and practical design notes drawn from the official SMPS dsPIC33 application notes - content not available from any single distributor page.

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DSPIC33FJ16GS404-I/ML - 16-bit DSC, 16KB Flash, 40 MIPS | Microchip
DSPIC33FJ16GS404-I/ML

DSPIC33FJ16GS404-I/ML - 16-bit DSC, 16KB Flash, 40 MIPS | Microchip

The Microchip Technology DSPIC33FJ16GS404-I/ML is a 16-bit Digital Signal Controller (DSC) from the dsPIC33F family that combines a high-performance DSP engine with microcontroller peripherals, delivering up to 40 MIPS at 3.3V in a 44-pin QFN (8x8 mm) package with exposed pad. The device integrates a 16KB (16K x 8) Flash program memory, 2048 bytes of RAM, and a barrel shifter for single-cycle shifts, making it well-suited for closed-loop control and high-speed signal processing. A Digital Signal Controller (DSC) is a hybrid architecture that merges the deterministic interrupt latency and peripheral richness of a microcontroller (MCU) with the multiply-accumulate (MAC) throughput of a Digital Signal Processor (DSP). Within the broader taxonomy, a DSC sits between a microcontroller and a DSP, falling under the hierarchy DSC -> MCU -> embedded processor -> semiconductor. The dsPIC33F family specifically targets switch-mode power supplies, motor drives, lighting, and power-conversion applications where the MAC engine accelerates control loops while standard MCU peripherals (UART, SPI, I2C, timers) handle housekeeping. Key features of the DSPIC33FJ16GS404 include high-speed PWM modules optimized for power conversion, on-chip 10-bit ADCs with paired Sample-and-Hold for current and voltage sensing, analog comparators for cycle-by-cycle current limiting, JTAG boundary-scan debug (IEEE 1149.2), and two hardware breakpoints. Operating from 3.0V to 3.6V across an industrial -40C to +85C range, the device supports In-Circuit Serial Programming (ICSP) and In-Application Programming (IAP) for field updates. The CMOS process technology keeps dynamic current low while the 40 MIPS core delivers deterministic control-loop performance. The architecture combines a 16-bit modified-Harvard bus with separate program and data paths, a 17x17-bit single-cycle MAC, and a 40-bit accumulator that enables high-precision DSP operations without saturating. The integrated DSP engine removes the need for a separate DSP coprocessor, reducing BOM cost and PCB area while simplifying firmware development with a single C/asm toolchain (MPLAB XC16). Typical applications include digital switch-mode power supplies (SMPS), uninterruptible power supplies (UPS), LED lighting drivers, BLDC/PMSM motor control, photovoltaic micro-inverters, and Class-D audio amplifiers. The combination of high-resolution PWM and fast ADCs makes the DSPIC33FJ16GS404 particularly well-suited to bridgeless PFC, LLC resonant converters, and digital control of synchronous-rectifier stages. When designing with this part, follow Microchip application notes AN1078 (PFC) and AN1292 (SMPS) for loop-compensation guidance. Ensure that the QFN exposed pad (EP) is soldered to a sufficiently large copper pour to meet the 31.5 C/W thermal resistance, and place the 10 uF + 0.1 uF decoupling pair as close as possible to the VDD pins. This page synthesizes distributor pricing as of 2026-09-26, drop-in alternatives from the dsPIC33F GS family, and practical design notes not found in the manufacturer datasheet, providing a single-source engineering reference unavailable from Microchip, DigiKey, or Mouser individually.

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DSPIC33FJ16GS404-I/TL - 16-Bit DSC, 40 MIPS, 16KB Flash | Microchip
DSPIC33FJ16GS404-I/TL

DSPIC33FJ16GS404-I/TL - 16-Bit DSC, 40 MIPS, 16KB Flash | Microchip

The Microchip DSPIC33FJ16GS404-I/TL is a 16-bit Digital Signal Controller (DSC) from the dsPIC33F SMPS family, delivering 40 MIPS of computational throughput with single-cycle MAC operations, housed in a 44-lead VTLA surface-mount package (6x6 mm) with an exposed thermal pad. The device integrates 16 KB of Flash program memory, 2 KB of SRAM data memory, and dedicated peripherals for switched-mode power supply (SMPS) applications including high-speed ADCs, PWMs, and analog comparators operating from a 3.0V to 3.6V supply. The dsPIC33F family is a hybrid architecture combining a PIC16-bit MCU core with a DSP engine, providing deterministic real-time control plus high-throughput signal processing in a single chip. SMPS-optimized variants like the GS404 add high-resolution PWM modules and fast ADC converters, making them ideal for digital power conversion where conventional microcontrollers lack the necessary peripheral set or computational bandwidth to close multi-loop control loops at high switching frequencies. Key features include an integrated 10-bit ADC with up to 6 Sample-and-Hold channels configurable for 1.1 Msps throughput, up to 4 PWM output channels with duty-cycle resolution up to 1.04 ns at 40 MIPS, and two analog comparators with reference DACs. The device also provides dedicated SMPS interfaces such as a Current Reset, PWM-Latch input, and a high-speed analog comparator for current-mode control. Communications peripherals cover UART, SPI, and I2C, while an integrated 16-bit timer/capture/compare set supports digital control loops. The architecture uses a 5-stage pipeline modified Harvard bus with single-cycle hardware MAC (16x16 -> 32-bit) and a 40-bit accumulator, supporting fractional fixed-point math. This enables on-chip execution of digital control algorithms such as PID, state-space, and digital filtering for power conversion without burdening the CPU. The 16 KB Flash and 2 KB SRAM provide sufficient headroom for typical 2-3 loop SMPS firmware with logging and supervisory functions. Typical applications include digitally controlled switch-mode power supplies (D-SMPS), uninterruptible power systems (UPS), telecom rectifiers, server PSUs, photovoltaic micro-inverters, and digital lighting ballasts. The wide operating temperature range of -40C to +85C (Industrial grade) supports industrial, telecom, and embedded computing environments. When designing with this part, place the exposed thermal pad (EP) on a top-layer copper pour of at least 1 square inch to keep theta_JA within spec. Decouple VDD/VSS pairs with 100 nF X7R ceramic capacitors placed within 3 mm of each pin pair, and route analog AVSS/AVDD traces separately from noisy switching return paths to preserve ADC accuracy. This page synthesizes verified distributor pricing, drop-in alternative candidates in the same VTLA-44 footprint, and practical design notes compiled from the manufacturer datasheet and SMPS application notes not consolidated on a single product page.

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DSPIC33FJ16GS404T-50I/ML - 16-bit 50MIPS SMPS DSC, 16KB Flash | Microchip
DSPIC33FJ16GS404T-50I/ML

DSPIC33FJ16GS404T-50I/ML - 16-bit 50MIPS SMPS DSC, 16KB Flash | Microchip

The Microchip Technology DSPIC33FJ16GS404T-50I/ML is a 16-bit Digital Signal Controller (DSC) from the dsPIC33F "GS" SMPS family, delivering up to 50 MIPS (million instructions per second) at a 50 MHz CPU clock, packaged in a 44-pin QFN-EP (8x8 mm) with exposed thermal pad. The device integrates 16 KB (16K x 8) of Flash program memory, 2 KB (2K x 8) of RAM, and is engineered for digital power conversion and Switch-Mode Power Supply (SMPS) applications such as AC/DC converters, DC/DC converters, power-factor correction, and uninterruptible power supplies. A Digital Signal Controller (DSC) is a hybrid MCU+DSP that combines a deterministic microcontroller core with a single-cycle MAC DSP engine. The dsPIC33FJ16GS404 specifically belongs to the GS sub-family, which adds high-resolution PWM (typically 1.0 ns duty-cycle resolution at 120 MHz PWM clock), high-speed comparators with DAC references, and a 10-bit ADC capable of up to 4 Msps (with simultaneous sampling via dedicated S/H) - features tuned for closed-loop digital control of power stages. In the broader product hierarchy, this places the DSC between general-purpose MCUs and dedicated DSPs, and the GS variant targets power-supply control loops above the GP (general-purpose) family and below the MC (motor-control) family. Key features of the DSPIC33FJ16GS404 include 35 general-purpose I/O pins, 4 PWM channels with complementary outputs and programmable dead time, 4 high-speed analog comparators with 10-bit DAC references, an 8-channel 10-bit ADC, JTAG/ICSP in-circuit debugging, and an operating voltage range of 3.0 V to 3.6 V. The "-50I" speed/grade designation indicates 50 MIPS operation over the industrial temperature range of -40 C to +85 C. The QFN-EP package (JEDEC code S-PQCC-N44, 8 mm x 8 mm with exposed pad) provides low thermal resistance for high-power applications. The architecture combines a modified Harvard 16-bit CPU with a DSP engine that supports dual 40-bit accumulators, single-cycle MAC operations, and barrel shifting, enabling advanced control algorithms such as predictive dead-time compensation, sliding-mode control, and digital filtering inside the PWM interrupt loop. The integrated high-speed comparator with sub-100 ns response provides cycle-by-cycle current limiting for peak-current-mode control without off-board analog components. Typical applications include digital telecom rectifiers, solar micro-inverters, LED drivers with constant-current regulation, induction-cooking converters, and digitally-controlled BLDC motor drives. The 16 KB Flash and 2 KB RAM are sufficient for single-loop voltage-mode or peak-current-mode control with field-oriented control (FOC) disabled. When designing with this DSC, place the exposed thermal pad on a continuous copper ground plane to dissipate the 1 W typical power budget, and route the high-speed comparator inputs as short, guarded traces to avoid false triggering from PWM edge noise. This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet.

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DSPIC33FJ16GS404T-50I/PT - 50 MIPS 16KB Flash dsPIC DSC | TQFP-44
DSPIC33FJ16GS404T-50I/PT

DSPIC33FJ16GS404T-50I/PT - 50 MIPS 16KB Flash dsPIC DSC | TQFP-44

The Microchip DSPIC33FJ16GS404T-50I/PT is a 16-bit Digital Signal Controller (DSC) that combines a high-performance dsPIC33F CPU core with on-chip peripherals purpose-built for Switch-Mode Power Supply (SMPS) and digital power conversion. Operating at up to 50 MIPS from a 50 MHz CPU clock, the device integrates 16 KB of Flash program memory (16K x 8) and 2 KB of RAM (2,048 words), and is housed in a 44-pin TQFP (10x10 mm) package with the T/R tape-and-reel orientation (T suffix). The dsPIC33F core features a 24-bit instruction word with dual operand reads, a 40-bit barrel shifter, and a hardware MAC engine optimized for high-speed math used in closed-loop power control. What is a digital signal controller? A DSC is a hybrid device that merges a microcontroller's deterministic peripheral and interrupt architecture with a DSP's high-throughput computational engine. In the dsPIC33F family specifically, the controller targets power conversion and motor-control loops where a single chip must sample an analog signal, execute a control-law, and update a high-resolution PWM within sub-microsecond deadlines. The hierarchy is: DSC -> microcontroller + DSP -> embedded processor -> semiconductor. This dual-domain capability is what makes the DSPIC33FJ16GS404 ideal for digital SMPS controllers. Key feature highlights include 4 high-speed PWM channels with 1.04 ns resolution, four on-chip op amps/comparators for current sensing, four 10-bit ADC sample-and-hold channels capable of 1.1 Msps conversion, and a 16-bit timer for power-loop scheduling. The device also exposes UART, SPI, and I2C interfaces for telemetry and housekeeping, plus a 3-wire programming/debug interface compatible with MPLAB ICD and the Explorer 16/32 development board. The industrial temperature grade (-40C to +85C) and built-in JTAG boundary scan simplify board-level test and qualification. Architecturally, the dsPIC33F core uses a 5-stage pipeline and a separate X/Y data-space bus that lets a single instruction issue two operand fetches and a MAC in parallel. The result is deterministic DSP throughput without the instruction-fetch bottlenecks typical of pure microcontrollers. Combined with zero-overhead hardware looping and zero-overhead bit manipulation, the DSPIC33FJ16GS404 supports deterministic control loops for LLC, PFC, and Phase-Shifted Full-Bridge topologies. Typical applications include digital SMPS power converters, UPS and telecom rectifiers, server and industrial AC/DC front ends, solar micro-inverters, LED lighting drivers, and BLDC/PMSM motor control. The TQFP-44 footprint and T/R packaging simplify high-volume factory assembly. Design consideration: reserve pins AVSS/AGND with separate analog and digital ground pours joined at a single point near the MCU; the on-chip ADC's 1.1 Msps rate is sensitive to digital switching noise injected through shared ground returns. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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DSPIC33FJ16GS404T-50I/TL - 50 MIPS 16KB Flash SMPS DSC | Microchip
DSPIC33FJ16GS404T-50I/TL

DSPIC33FJ16GS404T-50I/TL - 50 MIPS 16KB Flash SMPS DSC | Microchip

The Microchip DSPIC33FJ16GS404T-50I/TL is a 16-bit Digital Signal Controller (DSC) from the dsPIC33F SMPS family, delivering 50 MIPS of processing power with 16 KB of Flash program memory and 2 KB of RAM in a 44-pin VTLA (6x6 mm) exposed-pad package. It is purpose-built for Switch-Mode Power Supply (SMPS) and digital power conversion applications, integrating high-speed 10-bit ADCs, high-resolution PWM outputs, and a DSP engine alongside a microcontroller core on a single die. A Digital Signal Controller (DSC) is a hybrid architecture that combines a microcontroller's deterministic interrupt handling and peripheral set with a DSP's MAC (multiply-accumulate) engine for high-speed numerical computation. In the broader taxonomy, the dsPIC33F sits between PIC24F microcontrollers and PIC32 32-bit MCUs, occupying the niche where 16-bit processing is enough for control loops but DSP throughput is needed for filter math, modulation, and reference transformations. The 33F SMPS sub-family specifically targets digital power, with peripherals tuned for current/voltage sampling and high-resolution switching. Key features include 50 MIPS execution from a 40 MHz internal oscillator (with 4x PLL), four 10-bit ADC modules suited for multi-loop SMPS feedback, dedicated high-speed PWM channels with programmable dead time and fault inputs, and a 16-bit wide data path with DSP-oriented MAC instructions. The device operates from a single 3.0-3.6 V supply and is rated for the -40C to +85C industrial temperature range, making it suitable for harsh-environment power systems. The architecture pairs a modified Harvard bus with a single-cycle MAC and barrel shifter, enabling closed-loop control loops such as PFC, LLC, and phase-shifted full-bridge converters to be implemented without an external DSP. The Flash-accelerated instruction prefetch and 24-bit instruction word keep interrupt latency low while sustaining 50 MIPS throughput, which is critical when the controller must service high-frequency current-mode control loops in digital power converters. Typical applications include digitally controlled SMPS (PFC, LLC, full-bridge), solar micro-inverters, LED drivers with constant-current regulation, UPS systems, induction-heating controllers, and motor-control front ends. The integrated SMPS-optimized peripherals reduce external component count, allowing compact, high-efficiency digital power designs. When designing with this device, allocate sufficient decoupling on AVDD/DVDD pins and follow the manufacturer's layout note for the exposed thermal pad - the pad must be soldered to a copper pour for proper heat dissipation and electrical ground reference. Programming is supported via the ICD 3 / PICkit 3 toolchain and the MPLAB X IDE. This page consolidates distributor pricing, parametric comparison with same-family drop-in alternatives, and PCB layout guidance not found in the manufacturer datasheet alone.

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DSPIC33FJ16GS404T-I/ML - 16-bit 40MIPS 16KB Flash SMPS DSC | Microchip
DSPIC33FJ16GS404T-I/ML

DSPIC33FJ16GS404T-I/ML - 16-bit 40MIPS 16KB Flash SMPS DSC | Microchip

The Microchip Technology DSPIC33FJ16GS404T-I/ML is a 16-bit dsPIC33F Digital Signal Controller (DSC) with SMPS-optimized peripherals, delivering 40 MIPS performance from a 50 MHz internal oscillator, in a 44-pin QFN (8x8 mm) package. It integrates 16 KB of Flash program memory, 2048 bytes of SRAM, and dedicated peripherals for digital power conversion including high-speed PWM modules, 10-bit ADC, and analog comparators tuned for switched-mode power supply (SMPS) control loops. A dsPIC33F DSC (Digital Signal Controller) is a hybrid device that combines a 16-bit MCU with a single-cycle DSP engine and SMPS-optimized peripherals in one silicon die, occupying the position of digital power controller in the product hierarchy: dsPIC33F DSC > digital signal controller > microcontroller > semiconductor. The "GS" series specifically targets switched-mode power supplies, digital lighting, power conversion and motor control with high-resolution PWM (typically 1.04 ns resolution at 50 MHz) and integrated analog resources such as 4 S&H, 4 comparators and an op-amp. This integration eliminates the need for an external DSP while providing deterministic interrupt latency critical for closed-loop power control. Key features include: 16 KB Flash (16K x 8), 2048 bytes SRAM, 40 MIPS at 3.0-3.6V, 16-bit data path, 24-bit instruction word, integrated op-amp/comparator, 4-channel high-speed PWM (1.04 ns edge resolution), 10-bit ADC with up to 500 ksps, I2C/SPI/UART interfaces, JTAG/ICSP debug, and an industrial -40°C to +85°C operating temperature range. The QFN-44 (8x8 mm) package with exposed thermal pad enables efficient heat dissipation in compact power designs. Architecturally, the device uses a modified Harvard bus with single-cycle MAC, a barrel shifter, and 16 working registers, while dedicated SMPS peripherals (high-speed ADC with 4 S&H, high-resolution PWM with 1.04 ns edge placement, integrated op-amp and analog comparators) offload the CPU from real-time power-control loop tasks. The 40 MIPS throughput is sufficient for voltage-mode, current-mode and PFC control loops running at typical 50-200 kHz switching frequencies with margin for housekeeping and communications. Typical applications include digital switch-mode power supplies (SMPS), uninterruptible power supplies (UPS), power factor correction (PFC) front stages, digital LED lighting ballasts, solar micro-inverters, DC-DC converters (buck/boost/SEPIC), battery chargers, and motor control for low-voltage BLDC fans. The industrial temperature range and AEC-Q100-style qualification of the GS family make it suitable for demanding industrial environments. When designing with the DSPIC33FJ16GS404T-I/ML, ensure the exposed pad of the QFN-44 package is soldered to a sufficient copper pour for thermal dissipation, since the device may dissipate 0.5-1 W in active digital-power loops. Use the on-chip op-amp for current sensing and the high-speed comparator for peak-current-mode control, leaving the CPU free for supervisory tasks. Decouple VDD/VSS pairs with 100 nF + 10 µF ceramic capacitors placed as close as possible to the pins. This page synthesizes distributor pricing, drop-in alternatives, comparison parameters and practical design notes not found in the manufacturer datasheet alone.

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DSPIC33FJ16GS404T-I/PT - 40 MIPS 16KB Flash dsPIC33F DSC | Microchip
DSPIC33FJ16GS404T-I/PT

DSPIC33FJ16GS404T-I/PT - 40 MIPS 16KB Flash dsPIC33F DSC | Microchip

The Microchip Technology DSPIC33FJ16GS404T-I/PT is a 16-bit Digital Signal Controller (DSC) operating at 40 MIPS (50 MHz maximum CPU clock) from the dsPIC33F family, integrating 16 KB of Flash program memory (16K x 8) and 2 KB of RAM in a 44-pin TQFP (10x10 mm) industrial-grade package. It combines a high-performance dsPIC DSP-enhanced CPU with a switched-mode power supply-optimized peripheral set that includes high-speed PWM, 10-bit A/D converters, analog comparators, and dedicated SMPS control logic. A Digital Signal Controller (DSC) is a hybrid device that pairs a microcontroller's deterministic control capabilities with a Digital Signal Processor's (DSP) computational throughput. The dsPIC33F architecture adds a hardware multiplier-accumulator (MAC) and barrel shifter to a 16-bit modified-Harvard RISC core, enabling one-cycle 16x16-bit multiplication and zero-overhead loop control. This places DSCs in the signal-chain taxonomy above 8-bit MCUs and below 32-bit ARM Cortex-M cores, particularly for real-time control loops where cycle-deterministic DSP operations matter. Key features of the DSPIC33FJ16GS404T-I/PT include four 16-bit timers, an enhanced CAN 2.0B controller, two UART, two I2C, and one SPI interface, plus IEEE 1149.2-compatible JTAG boundary scan. The device also offers trace support, two hardware breakpoints, and run-time watch for development. Power features include idle, sleep, and alternate run modes with on-chip LDO regulation supporting 3.0-3.6 V operation. Typical applications include digital switched-mode power supplies (SMPS), uninterruptible power supplies (UPS), DC-DC converters, power factor correction (PFC), motor control (BLDC/PMSM), digital lighting ballasts, and solar inverters. The high-resolution PWM and dedicated analog comparator peripherals make this part especially well-suited to peak-current-mode control topologies. When designing with this device, ensure the supply rail is decoupled with 10 uF + 0.1 uF ceramics close to the VDD/AVDD pair. Use the dedicated PWM fault pins to implement hardware over-current protection, and route analog comparator inputs away from high-dV/dt PWM traces to prevent false triggering. Programming is supported via MPLAB X IDE and the MPLAB ICD 3/4 in-circuit debuggers, with full C-compiler support in MPLAB XC16.

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DSPIC33FJ16GS404T-I/TL - 40 MIPS 16KB Flash SMPS DSC | Microchip
DSPIC33FJ16GS404T-I/TL

DSPIC33FJ16GS404T-I/TL - 40 MIPS 16KB Flash SMPS DSC | Microchip

The Microchip Technology DSPIC33FJ16GS404T-I/TL is a 16-bit dsPIC33F digital signal controller (DSC) engineered specifically for digital power conversion and switched-mode power supply (SMPS) applications. The device combines a high-performance DSP engine with a 40 MIPS modified Harvard architecture, 16 KB of Flash program memory and 2 KB of RAM, housed in a 44-pin VTLA (6x6 mm) surface-mount package. It integrates high-speed PWM, multi-channel 10-bit ADC and analog comparators that enable multi-loop digital control of power topologies. A digital signal controller (DSC) is a hybrid device that merges a microcontroller's deterministic control peripherals with a digital signal processor's mathematical throughput, sitting in the taxonomy between MCU and DSP within the broader semiconductor and embedded computing hierarchy. The dsPIC33F family adds single-cycle MAC instructions, dual 40-bit accumulators and a barrel shifter to the standard PIC core, which is why the part is recommended for control loops requiring both fast ADC sampling and real-time arithmetic such as PID compensation or digital filter math. Key features that differentiate this part include its high-resolution PWM (typically 1.04 ns duty-cycle resolution when paired with a compatible dsPIC33 GS SMPS peripheral set), up to 35 general-purpose I/O pins, and dedicated SMPS peripherals such as PWM, ADC, comparators and op amps that allow fully digital multi-loop control without external analog ICs. The core operates from a 3.0 V to 3.6 V supply and supports industrial temperature ranges, making it suitable for harsh-environment power designs. Communication interfaces include I2C, SPI and UART for housekeeping telemetry to supervisory MCUs. Architecturally the dsPIC33FJ16GS404T-I/TL uses a 16-bit modified Harvard CPU with separate program and data buses, allowing simultaneous Fetch and Read/Write on the same cycle. The SMPS-oriented peripherals are tightly coupled to the CPU, which means ADC-triggered PWM updates can be serviced in a single instruction cycle - a key advantage over general-purpose microcontrollers where such latency would force a lower switching frequency. Typical applications include AC-to-DC converters, DC-to-DC converters, power factor correction (PFC), uninterruptible power supplies (UPS), digital lighting ballasts, solar micro-inverters and induction-heating control. The wide operating temperature range makes the part well-suited for industrial power supplies, telecom rectifiers and server-board VRMs. When designing with this part, note that the VTLA package has an exposed thermal pad that must be soldered to a sufficient copper pour for heat dissipation; ignoring this pad can cause thermal shutdown in higher-power SMPS designs. Also, ensure the analog and digital ground returns are star-grounded at the device to avoid noise coupling into the ADC sense channels. This page synthesizes distributor pricing, drop-in same-package alternatives, application guidance and design notes not available on a single distributor product page.

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DSPIC33FJ16GS502-50I/SO - 16-bit SMPS DSC, 50 MIPS, 28-SOIC | Microchip
DSPIC33FJ16GS502-50I/SO

DSPIC33FJ16GS502-50I/SO - 16-bit SMPS DSC, 50 MIPS, 28-SOIC | Microchip

The Microchip Technology DSPIC33FJ16GS502-50I/SO is a 16-bit Digital Signal Controller (DSC) optimized for switch-mode power supply (SMPS) and digital power-conversion applications, integrating a high-performance dsPIC33F CPU core with a 50 MIPS operating speed and 16 KB of on-chip Flash program memory in a 28-pin SOIC wide-body package. The device combines DSP computational throughput with microcontroller peripherals on a single die, executing up to 50 million instructions per second while supporting the deterministic control loops required for multi-rail power topologies such as AC/DC converters, isolated DC/DC stages, power factor correction (PFC) stages, and uninterruptible power supplies. A Digital Signal Controller is a class of embedded processor that fuses a microcontroller's deterministic interrupt-driven control architecture with a digital signal processor's MAC engine and single-cycle hardware loop buffer. In the broader embedded hierarchy, the DSC sits between a general-purpose MCU and a standalone DSP, making it well suited to applications that simultaneously require sensor sampling, fast arithmetic on filtered variables, and tight feedback control. The dsPIC33F family, of which the DSPIC33FJ16GS502 is a member, was specifically engineered for digital power conversion, with peripheral sets that include high-speed PWM, high-speed ADC, and analog comparators tightly coupled to the CPU for sub-microsecond control-loop latency. Key features of the DSPIC33FJ16GS502-50I/SO include up to four high-speed PWM channels with 1.04 ns resolution, two 10-bit DAC outputs for slope compensation or reference generation, four high-speed analog comparators for cycle-by-cycle current limiting, and a 10-bit ADC with a 4 Msps conversion rate. The 28-pin SOIC package exposes the full SMPS-oriented peripheral set while fitting into designs where board height is constrained and through-hole or quad-pack alternatives are not desired. Industrial temperature range of -40C to +85C is supported by the -50I suffix. Typical applications include digitally controlled AC/DC power supplies, isolated DC/DC converters using peak-current-mode or average-current-mode control, bridgeless PFC stages, solar micro-inverters, digital welding power sources, and uninterruptible power systems. The high-speed analog comparator block enables cycle-by-cycle over-current protection that trips within a single PWM period, a feature that is essential when controlling SiC, GaN, or high-current silicon MOSFET switching stages where protection latency directly affects system reliability. Companion products in a typical design include a Microchip MCP16311 or MCP19114 analog front-end, gate-driver ICs such as the MCP14 family, and current-sense amplifiers built from low-offset op-amps such as the MCP6C04. When designing with the DSPIC33FJ16GS502-50I/SO, ensure that the AVSS pin is tied to a clean analog ground return that does not share a path with high-di/dt switching currents, since the integrated ADC and comparators rely on a low-noise reference for accurate current sensing. The internal LDO regulator that supplies the core from VDD must be bypassed with a 10 microfarad ceramic capacitor placed within 5 mm of the VCAP pin; without this capacitor the part will not start up reliably. Programming is supported through the device's ICSP interface and the JTAG boundary-scan port, both accessible via Microchip's MPLAB X IDE and the MPLAB ICD 3 or PICkit 4 in-circuit debugger. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone, providing a single reference for engineers evaluating the DSPIC33FJ16GS502-50I/SO for digital power designs.

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DSPIC33FJ16GS502-50I/SP - 50 MIPS 16-bit DSC, 28-SPDIP | Microchip
DSPIC33FJ16GS502-50I/SP

DSPIC33FJ16GS502-50I/SP - 50 MIPS 16-bit DSC, 28-SPDIP | Microchip

The Microchip Technology DSPIC33FJ16GS502-50I/SP is a 16-bit Digital Signal Controller (DSC) from the dsPIC33F family, delivering 50 MIPS of performance and housed in a 28-pin SPDIP (Skinny Plastic DIP) through-hole package. The device integrates a high-performance dsPIC33F CPU core with DSP engine, 16 KB of Flash program memory, and is targeted at digital power-conversion and SMPS (Switch-Mode Power Supply) applications. A Digital Signal Controller (DSC) is a hybrid architecture that combines the deterministic interrupt response and peripheral set of a microcontroller with the computational throughput of a Digital Signal Processor (DSP). DSCs sit in the taxonomy between microcontrollers (MCUs) and standalone DSPs, and are commonly deployed in real-time control loops where both high-bandwidth analog sampling and fast numerical computation are required. The dsPIC33F family is Microchip's first DSC generation and remains popular for cost-sensitive digital power designs. Key features of the DSPIC33FJ16GS502-50I/SP include a 50 MHz maximum operating frequency (50 MIPS), on-chip high-speed PWM modules optimized for multi-loop SMPS topologies, a 10-bit A/D converter with up to 4 Sample-and-Hold channels for simultaneous voltage/current sensing, and fast analog comparators that enable hardware-based cycle-by-cycle current limiting. The device operates from a 3.0 V to 3.6 V supply (3.3 V nominal) and supports JTAG boundary scan for production test. From a system-design standpoint, the part integrates Flash with ICSP (In-Circuit Serial Programming) and supports both In-Circuit and In-Application Programming, which allows firmware updates in the field. The CPU architecture includes a barrel shifter and a 16 x 16-bit single-cycle MAC, making it suitable for PID compensation, state-space control, and power-quality math (THD, RMS) without external DSP chips. Typical applications span digital switch-mode power supplies (AC-DC, DC-DC, PFC), uninterruptible power supplies (UPS), digital lighting ballasts, and motor-control platforms where the high-speed PWM and ADC combination is mandatory. The 28-SPDIP package also makes it suitable for evaluation boards, prototypes, and through-hole industrial assemblies where SMT is undesirable. When designing with this part, observe the maximum I/O pin current ratings, provide adequate decoupling (100 nF plus bulk) near each VDD/VSS pair, and consult the family datasheet for PWM dead-time and ADC acquisition-time programming constraints. Designers should also plan for code protection if the device ships with proprietary firmware. This page consolidates distributor pricing, drop-in 28-SPDIP alternatives from the same dsPIC33F family, and design notes that extend beyond the manufacturer datasheet to help engineers select and qualify the right part for SMPS and digital-power designs.

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DSPIC33FJ16GS502-E/MM - 16-bit 40 MIPS SMPS DSC | Microchip
DSPIC33FJ16GS502-E/MM

DSPIC33FJ16GS502-E/MM - 16-bit 40 MIPS SMPS DSC | Microchip

The Microchip Technology DSPIC33FJ16GS502-E/MM is a high-performance 16-bit Digital Signal Controller (DSC) in the dsPIC33F family, optimized for digital power conversion and switch-mode power supply (SMPS) applications. It combines a 40 MIPS dsPIC DSC core with 16 KB of Flash program memory and 2 KB of RAM, all housed in a 28-pin 6x6 mm QFN-S package (MM). The '-E' suffix denotes the extended industrial temperature grade of -40C to +125C. A Digital Signal Controller (DSC) is a hybrid device that fuses a microcontroller (MCU) with a Digital Signal Processor (DSP) on a single die. Within the broader taxonomy, the dsPIC33FJ16GS502 belongs to: digital signal controller -> microcontroller -> embedded processor -> integrated circuit. Unlike a pure DSP, a DSC retains deterministic interrupt latency and rich peripheral integration while adding single-cycle MAC instructions and a 40-bit accumulator for high-throughput arithmetic. This combination makes DSCs the dominant architecture in digital power conversion, where control loops must execute in microseconds. Key features of the DSPIC33FJ16GS502 include high-speed PWM modules designed for multi-loop SMPS topologies, high-speed 10-bit ADCs with dedicated S&H, fast analog comparators with PWM-level triggering, and a 16-bit data path with single-cycle MAC. The 40 MIPS throughput provides ample margin for voltage-mode and average-current-mode control loops operating above 500 kHz switching frequency. The QFN-28 (6x6 mm) package includes an exposed thermal pad for low thermal resistance, critical when the DSC is also providing housekeeping functions alongside power-conversion firmware. Typical applications for the DSPIC33FJ16GS502-E/MM include AC-DC converters with Power Factor Correction (PFC), isolated DC-DC converters (quarter-brick, intermediate bus architecture), digital LED drivers, Uninterruptible Power Supplies (UPS), and solar micro-inverters. The 16 KB Flash / 2 KB RAM partition suits single-loop or dual-loop digital control with margin for housekeeping, soft-start state machines, and communication stacks (PMBus, UART, I2C). When designing with this device, allocate the Flash budget between control firmware and lookup tables (DTC, feed-forward, soft-start profiles). Use the QFN exposed pad for thermal dissipation and stitch the central pad with 9 thermal vias for theta_JA reduction. Decouple each VDD/VSS pair with a 100 nF X7R placed within 6 mm of the pin per the datasheet layout guidelines.

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DSPIC33FJ16GS502-E/MX - 16-bit SMPS DSC, 16KB Flash, 28-UQFN | Microchip
DSPIC33FJ16GS502-E/MX

DSPIC33FJ16GS502-E/MX - 16-bit SMPS DSC, 16KB Flash, 28-UQFN | Microchip

The Microchip DSPIC33FJ16GS502-E/MX is a 16-bit dsPIC33F Digital Signal Controller (DSC) with 16KB of Flash program memory, 2048 bytes of RAM, and integrated SMPS peripherals, housed in a 28-pin UQFN (6x6 mm) package with an exposed thermal pad. It executes instructions at up to 40 MIPS from a 3.0V to 3.6V supply, targets automotive-grade temperature operation from -40C to +125C, and combines a high-performance DSP engine with controller peripherals optimized for digital power conversion. Key silicon features include 6 high-speed PWM channels, 4 high-speed analog comparators with DAC reference, 2 on-chip voltage references, a 10-bit ADC capable of up to 4 MSPS, and 2 op-amps configured for current-shunt amplification in closed-loop digital power topologies. A Digital Signal Controller (DSC) is a hybrid MCU+DSP device combining a microcontroller's deterministic control peripherals with a DSP's parallel math engine, allowing cycle-accurate control loops alongside fast math transforms. Within the broader taxonomy it sits under microcontroller -> DSC -> dsPIC33F family -> SMPS-optimized variants, supplying the compute density required for multi-loop digital switch-mode power supply (SMPS) regulation where standard MCUs lack the cycle headroom or DSP performance. The DSP engine includes a 40-bit accumulator, dual 40-bit accumulators selectable for MAC operations, and 17x17-bit single-cycle hardware multiplier, while the controller side adds a 16-bit timer, watchdog timer, I2C, SPI, UART, and JTAG boundary scan for production test. The 6-channel PWM module supports complementary outputs with programmable dead-time, fault inputs, and 1.04 ns edge resolution, making it suitable for phase-shifted full-bridge, totem-pole PFC, and LLC converter control. The high-speed analog comparators trip in under 30 ns for cycle-by-cycle current limiting. With its 40 MIPS performance and dedicated SMPS peripherals, the DSPIC33FJ16GS502-E/MX targets digital power conversion applications such as AC-DC converters, DC-DC converters, power factor correction (PFC) stages, uninterruptible power supplies, and LED lighting drivers. Multiple control loops can run from a single chip while maintaining deterministic timing. Designers should pair it with isolated gate drivers and high-resolution shunts to fully exploit the analog comparator bandwidth and PWM edge resolution.

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DSPIC33FJ16GS502-H/MM - 16-bit DSC, 16KB Flash, 40 MIPS | Microchip
DSPIC33FJ16GS502-H/MM

DSPIC33FJ16GS502-H/MM - 16-bit DSC, 16KB Flash, 40 MIPS | Microchip

The Microchip Technology DSPIC33FJ16GS502-H/MM is a 16-bit dsPIC33F Digital Signal Controller (DSC) rated for 40 MIPS (50 MHz maximum input clock) operation, packaged in a 28-pin QFN-S 6x6 mm plastic module. It integrates 16 KB of Flash program memory, 2 KB of RAM, and is designed around the dsPIC33F CPU core with DSP-enhanced Harvard architecture for high-speed digital power conversion loops. The 16-bit data path, combined with hardware MAC and barrel shifter resources, lets the device execute single-cycle 16x16-bit multiply-accumulate operations essential for real-time control. A Digital Signal Controller (DSC) is a hybrid device class that combines a microcontroller (MCU) deterministic real-time control peripheral set with a digital signal processor (DSP) computational engine. DSCs sit hierarchically between microcontrollers (simpler control) and full DSP processors (heavier signal-processing throughput), and within power management they bridge analog SMPS controllers and software-defined digital control loops. The DSPIC33FJ16GS502-H/MM is part of Microchip's SMPS-targeted dsPIC33F GS family, deliberately optimized for digital switch-mode power supply (SMPS), AC-to-DC, DC-to-DC, and Power Factor Correction (PFC) topologies. Key features include high-speed PWM with complementary outputs and programmable dead time, high-speed 10-bit or 12-bit ADCs with multi-sample-and-hold capable of synchronizing to the PWM, fast analog comparators for cycle-by-cycle current limiting, 21 general-purpose I/O, five timers, JTAG boundary scan, and support for in-circuit and in-application programming. The -H temperature grade extends operation to 150°C junction (automotive/extended industrial grade). The QFN-28 package provides a low thermal-resistance exposed pad, allowing continuous high-current switching drive at full SMPS load. Typical applications span digital telecom DC-DC converters, quarter-brick intermediate bus architectures, PFC boost stages, AC-DC adapters, digital lighting ballasts, and motor control. The high-speed PWM, ADC, and comparator trio is specifically arranged for multi-loop SMPS feedback, with sampling edges programmable to align with PWM edges for sub-microsecond control loop latency. When designing, place decoupling within 6 mm of each VDD/VSS pair, route analog AVSS/AVDD separately from digital grounds, and follow Microchip's family BSDL/symbol files for JTAG chain layout. Always configure the PWM fault input and current sense comparator before enabling outputs to avoid inrush damage. This page synthesizes distributor pricing, drop-in temperature/speed-grade alternatives, and practical PCB design notes not collected in the manufacturer datasheet alone.

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