DSPIC33FJ06GS202AT-I/TL - 16-bit 40 MIPS DSC, 6KB Flash | Microchip
MPN: DSPIC33FJ06GS202AT-I/TL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.1 | $3.10 |
| 10 | $2.8 | $28.00 |
| 100 | $2.45 | $245.00 |
| 500 | $2.1 | $1,050.00 |
| 1,000 | $1.85 | $1,850.00 |
DSPIC33FJ06GS202AT-I/TL Overview
A digital signal controller (DSC) combines the control peripherals of a microcontroller with the mathematical throughput of a DSP core in a single chip. Within the power-management hierarchy, a DSC such as the dsPIC33FJ family sits at the heart of digital switch-mode power supplies (SMPS), replacing analog control loops with firmware-based loops that are more flexible, configurable, and field-updatable.
Key features of this device include a modified Harvard 16-bit DSP engine with 40 MIPS throughput, on-chip Flash of 6 KB sized specifically for closed-loop power conversion firmware, and a dedicated SMPS peripheral set: high-resolution PWM modules with dead-time control, a fast analog comparator, and a high-speed 10-bit ADC with simultaneous sampling, all tailored for control-loop latency in the microsecond range.
Architecturally, the dsPIC33FJ core pairs a 16-bit RISC pipeline with DSP instructions (MAC, barrel shifter) and a 24-bit instruction word. The two on-chip comparators feed directly into the PWM fault/fault-overcurrent logic, enabling cycle-by-cycle current limiting without CPU intervention - a critical safety feature in peak-current-mode power converters.
Typical applications include AC-to-DC converters, DC-to-DC converters, Power Factor Correction (PFC) stages, uninterruptible power supplies (UPS), and multi-loop digital SMPS designs such as LLC half-bridge and push-pull converters, where the fast ADC and high-resolution PWM provide the timing precision these topologies demand.
Design consideration: keep the ICSP (PGECx/PGEDx) trace lengths short per the Microchip datasheet, and budget the 6 KB Flash carefully - algorithmic PFC plus multiple protection handlers can approach this limit, so prefer table-driven code and compiler optimization in tight designs.
This page synthesizes distributor pricing (as of 2026-09-26), drop-in alternative variants, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ06GS202AT-I/TL — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with DSPIC33FJ06GS202AT-I/TL (same form factor and footprint) — differing in Package, Core Architecture, Packaging, RAM Size, Series.
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Request AlternativesDSPIC33FJ06GS202AT-I/TL Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F RISC with DSP engine |
| Maximum CPU Speed | 40 MIPS |
| Program Memory Size | 6 KB (2K x 24) Flash |
| RAM Size | 1024 Bytes |
| Supply Voltage | 3.3 V |
| Package | 36-VTLA (5x5 mm) QFN with exposed pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (I grade) |
| Series | dsPIC33FJ06GS202A (SMPS DSC family) |
| Application Focus | Digital switch-mode power supplies (SMPS) |
| PWM Peripherals | High-resolution SMPS PWM |
| Analog Peripherals | High-speed ADC and analog comparators |
| Programming / Debug | ICSP via PGECx/PGEDx pins |
| Packaging | Tape and Reel (T/R) |
| RoHS Status | Compliant |
| Number of Pins | 36 |
DSPIC33FJ06GS202AT-I/TL 36-vtla (5x5 mm) qfn with exposed pad Pin Configuration Guide
Pin configuration for DSPIC33FJ06GS202AT-I/TL (36-vtla (5x5 mm) qfn with exposed pad package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for DSPIC33FJ06GS202AT-I/TL.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ06GS202AT-I/TL is suitable for 6 applications: Digital Switch-Mode Power Supplies (SMPS), AC-to-DC Converters, DC-to-DC Converters, Power Factor Correction (PFC), Uninterruptible Power Supplies (UPS), Embedded Digital Power Control Modules.
Digital Switch-Mode Power Supplies (SMPS)
The DSPIC33FJ06GS202AT-I/TL is purpose-built for multi-loop digital SMPS control. Its 40 MIPS 16-bit DSP core executes PI/PID current- and voltage-loop firmware with microsecond latency, while the high-resolution PWM delivers the phase resolution required for converters switching at hundreds of kilohertz. The on-chip analog comparators connect directly to PWM fault logic, enabling cycle-by-cycle overcurrent limiting without CPU intervention - a key reliability feature in peak-current-mode topologies. With 6 KB Flash and 1024 bytes RAM, full control firmware plus soft-start and fault handling fits on-chip. Unlike fixed-function analog controllers, control laws and protection thresholds are field-updatable in firmware, shortening design iteration cycles.
Recommended
AC-to-DC Converters
In AC-to-DC converter designs, the DSPIC33FJ06GS202AT-I/TL manages rectification control, inrush handling, and output regulation. Microchip's product page explicitly lists AC-DC converters as a target application for the dsPIC33FJ06GS202. The high-speed ADC samples the output bus and input waveform for feed-forward correction, while the 40 MIPS core sustains control-loop rates far above the line frequency, yielding low output ripple and tight regulation. Cycle-by-cycle current limiting via the comparator-to-PWM fault path protects the primary-side switch during startup transients and fault events. The exposed-pad 36-VTLA package dissipates heat into the ground pour, important in enclosed adapter form factors with limited airflow.
Recommended
DC-to-DC Converters
For DC-DC conversion - buck, boost, flyback, push-pull, and LLC topologies - the DSPIC33FJ06GS202AT-I/TL provides synchronized high-resolution PWM outputs with programmable dead-time, essential for half-bridge and synchronous-rectifier efficiency. The fast ADC can trigger conversions synchronized to PWM events, sampling inductor current at the optimal instant per switching cycle and avoiding switching-noise corruption of readings. Firmware-based control allows topology-specific compensation, adaptive dead-time optimization, and burst-mode light-load efficiency schemes that fixed-frequency analog controllers cannot match. At 40 MIPS, loop bandwidths in the tens of kilohertz are achievable, sufficient for most board-level and system-level power rails.
Recommended
Power Factor Correction (PFC)
Microchip lists Power Factor Correction as a primary application for the dsPIC33FJ06GS202 family. In a boost-PFC stage, the DSPIC33FJ06GS202AT-I/TL implements average-current-mode control: the high-speed ADC samples input voltage, input current, and bus voltage each switching cycle, and the 40 MIPS core updates the PWM duty ratio in real time to keep input current sinusoidal and in phase with line voltage, achieving power factors above 0.99 in well-tuned designs. The high-resolution PWM minimizes quantization-induced current distortion at high switching frequencies. Firmware flexibility supports conformal-current shaping, brown-out handling, and frequency fold-back during light load without hardware redesign.
Recommended
Uninterruptible Power Supplies (UPS)
In UPS systems, the DSPIC33FJ06GS202AT-I/TL coordinates battery charging, inverter control, and transfer switching. The dsPIC33FJ06GS202 product page names uninterruptible power supplies among supported applications. Its multi-channel ADC simultaneously monitors battery voltage/current and inverter output, while multiple high-resolution PWM channels drive inverter bridges and charger stages from one controller, reducing BOM count versus separate charger and inverter ICs. Fast comparator-based fault pathways disconnect the inverter within one switching cycle on overcurrent, protecting the load during transfer events. The industrial -40C to +85C rating suits UPS installations in telecom cabinets and unconditioned electrical rooms where ambient swings are common.
Recommended
Embedded Digital Power Control Modules
Beyond standalone converters, the DSPIC33FJ06GS202AT-I/TL serves as a digital power control module inside larger systems - server power shelves, telecom rectifiers, and LED drivers - where a host MCU delegates power conversion to a dedicated controller. The 36-VTLA footprint fits dense power boards, and ICSP via the PGECx/PGEDx pins allows field firmware updates with short, signal-integrity-safe programming traces as specified in Microchip datasheet DS75018. At 40 MIPS with 6 KB Flash, it executes one or two digital power loops plus housekeeping tasks, and its deterministic interrupt latency keeps control timing predictable - a requirement for passivated safety margins in high-power infrastructure.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ06GS202AT-I/TL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ06GS202A-I/TL | DSPIC33FJ06GS202A-E/TL | DSPIC33FJ06GS102A-I/TL | DSPIC33FJ06GS101AT-I/TL |
|---|---|---|---|---|---|
| Package | 36-VTLA (5x5 mm) QFN | 36-VTLA (5x5 mm) - same | 36-VTLA (5x5 mm) - same | 36-VTLA (5x5 mm) - same | 36-VTLA (5x5 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Flash Memory | 6 KB (2K x 24) | 6 KB (2K x 24) | 6 KB (2K x 24) | 6 KB (2K x 24) | 6 KB (2K x 24) |
| RAM | 1024 Bytes | 1024 Bytes | 1024 Bytes | 1024 Bytes | 1024 Bytes |
| Operating Temperature | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) |
| Analog/Peripheral Feature Set | Full GS202A SMPS set | Full GS202A SMPS set - identical | Full GS202A SMPS set - identical | GS102A - reduced analog channels | GS101A - entry feature set |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
Key Differentiators
- Tape-and-reel packaging for automated assembly (vs DSPIC33FJ06GS202A-I/TL)
- Extended-temperature option in same footprint (vs DSPIC33FJ06GS202A-E/TL)
- Full SMPS peripheral complement (vs DSPIC33FJ06GS102A-I/TL)
Design Notes
Keep the traces between the ICSP connector and the PGECx/PGEDx pins as short as possible, per Microchip datasheet DS75018. Long ICSP traces pick up switching noise from the SMPS power stage on the same board and can cause programming or debugging failures during production firmware updates. Route the ICSP pair away from PWM output traces and inductor loops, and add a series 100-ohm resistor on PGEDx if the connector is more than a few centimeters from the device.
Estimated: the 36-VTLA exposed pad is the primary thermal path. Solder the exposed pad to a ground pour with an array of thermal vias (e.g., 3x3 via pattern to internal ground plane). While a DSC running 40 MIPS on a 3.3V rail dissipates only tens of milliwatts of core power (e.g., ~40 mA x 3.3 V = ~0.13 W estimated), the exposed pad is still essential for ground integrity of the ADC and comparator references - poor pad soldering raises analog noise floor in current-sense measurements even when thermally safe.
Budget the 6 KB Flash conservatively. A dual-loop digital power controller with PFC, fault handlers, soft-start, and ICSP boot code can approach the 2K x 24 instruction limit, especially with unoptimized C code. Enable compiler optimization (-O2), avoid floating-point math in favor of the DSP engine's fixed-point MAC instructions, and reserve at least 10% Flash margin for firmware updates. Also verify that sampling of the ADC is synchronized to PWM events - sampling during switching transitions corrupts current readings with ringing.
Compliance Information
RoHS compliance per standard Microchip Technology product flow for current-production dsPIC33FJ parts; verify specific compliance certificates via the Microchip product page.
