DSPIC33EP16GS506-E/PT - 16-bit DSC 70MIPS 64-TQFP | Microchip
MPN: DSPIC33EP16GS506-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.28 | $4.28 |
| 10 | $4.06 | $40.60 |
| 100 | $3.85 | $385.00 |
| 500 | $3.64 | $1,820.00 |
| 1,000 | $3.46 | $3,460.00 |
DSPIC33EP16GS506-E/PT Overview
A Digital Signal Controller combines the computational throughput of a Digital Signal Processor (DSP) with the peripheral integration and ease of use of a microcontroller. Within the power-management hierarchy, a DSC sits at the control layer of a Switched-Mode Power Supply (SMPS): it closes control loops for converters, replaces analog control ICs, and enables programmable topologies such as Power Factor Correction (PFC), LLC resonant conversion, and digital battery charging. The dsPIC33EP16GS506 belongs to Microchip's GS-series family of 16-bit DSCs purpose-built for digital power.
Key features include an interconnected high-speed PWM module designed for advanced switching power topologies, a high-speed analog-to-digital converter with Programmable Gain Amplifier (PGA) and comparators for fast current-mode control, DSP engine instructions for efficient PID loop execution, and an extended temperature range of -40C to +125C. The device operates from a 3V to 3.6V supply.
Technically, the GS-series integrates the PWM, ADC, PGA, and comparator blocks with direct interconnects so that current-sense signals can be converted and loop-compensated within a single PWM period. The DSP engine with barrel shifter and hardware multiply supports fast execution of control-loop mathematics, while multiple PGECx/PGEDx pairs enable in-circuit serial programming (ICSP) debugging.
Typical applications include interleaved Power Factor Correction (Microchip provides a 350W universal-input interleaved PFC reference design for this family), LLC and half-bridge DC-DC converters, solar micro-inverters, digital battery chargers, and automotive/industrial power conversion where the -E grade temperature range and AEC-Q100 qualification are required.
When designing with this device, budget the 16KB Flash carefully - control loops, state machines, and communication stacks consume code space quickly, so consider pin-compatible family members with more Flash if the firmware roadmap is uncertain.
This page synthesizes distributor pricing, drop-in family alternatives, compliance data, and practical design notes not found together on any single manufacturer or distributor page.
Drop-in alternatives for DSPIC33EP16GS506-E/PT — 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 DSPIC33EP16GS506-E/PT (same form factor and footprint) — differing in Package, Core Architecture, Operating Temperature, PWM, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP16GS506-I/PT
✅ Drop-In✓ In Stock
$2.95 / Unit
View Datasheet →DSPIC33EP32GS506-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.5 / Unit
View Datasheet →DSPIC33EP64GS506-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.15 / Unit
View Datasheet →DSPIC33EP128GS506-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP16GS506-E/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC DSC |
| Max CPU Speed | 70 MIPS |
| Flash Memory | 16KB (16K x 8) |
| Operating Voltage | 3 V to 3.6 V |
| Operating Temperature | -40C to +125C (E grade) |
| Package | 64-TQFP (10x10 mm) |
| Terminal Pitch | 0.5 mm |
| Terminal Form | Gull Wing |
| Mounting Type | Surface Mount |
| Qualification | AEC-Q100, Functional Safety (FuSa) |
| PWM Module | Interconnected high-speed PWM for digital power |
| Analog Peripherals | High-speed ADC, PGA, comparators |
| DSP Engine | Barrel shifter, DSP instructions |
| Programming | ICSP via multiple PGECx/PGEDx pairs |
| Application Focus | Digital power (SMPS, PFC) |
DSPIC33EP16GS506-E/PT 64-tqfp (10x10 mm) Pin Configuration Guide
Pin configuration for DSPIC33EP16GS506-E/PT (64-tqfp (10x10 mm) 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 DSPIC33EP16GS506-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP16GS506-E/PT is suitable for 6 applications: Interleaved Power Factor Correction (PFC), LLC Resonant DC-DC Converters, Digital Battery Chargers, Automotive Power Conversion, Industrial Motor Control and Drives, Solar Micro-Inverters.
Interleaved Power Factor Correction (PFC)
The dsPIC33EP16GS506 is the controller behind Microchip's 350W universal-input interleaved PFC reference design. Its interconnected high-speed PWM generates phase-shifted gate drives for two boost legs while the high-speed ADC with PGA samples inductor current within each switching period, enabling average-current-mode control at 70 MIPS. Because the PWM, ADC, and comparators are hardwired with direct interconnects, current-limit response does not depend on software latency. Place the DSC near the power stage with short, routed sense lines to the PGA inputs; the DSP engine executes the compensation loop mathematics in hardware-accelerated instructions, freeing CPU headroom for housekeeping and communication.
Recommended
LLC Resonant DC-DC Converters
LLC converters demand precise, frequency-modulated complementary PWM with adjustable dead time - exactly what the dsPIC33EP16GS506's interconnected high-speed PWM provides at up to 70 MIPS core speed. The on-chip comparators with programmable reference protect against overcurrent events faster than any software loop, and the high-speed ADC captures resonant tank current for burst-mode and light-load management. With the -E grade rated to +125C ambient, the controller survives the elevated ambient temperatures typical of sealed converter enclosures. Firmware including LLC soft-start, fault handling, and telemetry fits within the 16KB Flash with careful coding; choose the 32KB or 64KB GS506 sibling if feature growth is expected.
Recommended
Digital Battery Chargers
Multi-chemistry battery charging requires CC/CV profiles, temperature-qualified charging, and termination algorithms - all well suited to the dsPIC33EP16GS506. The PGA amplifies low-level current-shunt signals before the high-speed ADC digitizes them, while the PWM stage drives buck or flyback power stages with fine duty-cycle resolution. The 70 MIPS DSP core runs coulomb counting and state-of-charge estimation alongside the control loop, and multiple PGECx/PGEDx pairs simplify production programming of the finished charger board. Its AEC-Q100 qualification and -40C to +125C range allow the same firmware platform to be reused across consumer and automotive charger variants.
Recommended
Automotive Power Conversion
For automotive subsystems such as on-board chargers, 48V/12V DC-DC converters, and LED headlamp drivers, the dsPIC33EP16GS506-E/PT provides AEC-Q100 qualification, Functional Safety (FuSa) support, and an extended -40C to +125C temperature grade - the defining attributes of the -E/PT suffix. The interconnected PWM/ADC/comparator architecture tolerates the noisy electrical environment by using hardware comparator trips for fault protection independent of the CPU. Designers should implement the 3V to 3.6V rail from a qualified automotive LDO and route PWM outputs away from ignition-noise sources; the gull-wing 64-TQFP handles the vibration and thermal cycling profiles of under-hood-adjacent locations.
Recommended
Industrial Motor Control and Drives
Low-voltage industrial drives, BLDC fans, and servo sub-drives benefit from the dsPIC33EP16GS506's center-aligned complementary PWM outputs and fast ADC triggered synchronously with the PWM carrier. The 16-bit DSP engine computes field-oriented control (FOC) arithmetic - Clarke/Park transforms plus PI loops - using hardware multiply and barrel-shifter support at 70 MIPS. Fault trip inputs wired to the PWM module's hardware protection shut down gates within nanoseconds of an overcurrent event. Multiple remappable peripheral pins (PPS) let one PCB layout support several motor topologies. The 16KB Flash accommodates a lean FOC implementation; larger GS506 Flash variants are drop-in upgrades for sensorless observers.
Recommended
Solar Micro-Inverters
A micro-inverter combines an MPPT DC-DC stage with a grid-tied inverter stage, both demanding synchronized, high-resolution PWM and fast current sampling - core strengths of the dsPIC33EP16GS506. The interconnected architecture lets the ADC sample PV-panel voltage and grid current at precisely timed instants in each PWM cycle, maximizing MPPT tracking accuracy, while the DSP core runs MPPT and grid-synchronization software concurrently at 70 MIPS. The -E grade -40C to +125C rating matches rooftop enclosure temperatures. Because 16KB Flash is tight for full grid-compliance firmware plus communications, most micro-inverter designs select the pin-compatible 32KB to 128KB GS506 variants with zero PCB change.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP16GS506-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP16GS506-I/PT | DSPIC33EP32GS506-E/PT | DSPIC33EP64GS506-E/PT | DSPIC33EP128GS506-E/PT |
|---|---|---|---|---|---|
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16KB | 16KB | 32KB | 64KB | 128KB |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +125C (E grade) |
| Operating Voltage | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
| AEC-Q100 Qualification | Yes (automotive, FuSa) | No (industrial grade) | Yes (E grade) | Yes (E grade) | Yes (E grade) |
| Digital Power Peripherals | Interconnected high-speed PWM, ADC, PGA, comparators | Identical peripheral set | Identical peripheral set | Identical peripheral set | Identical peripheral set |
Key Differentiators
- Extended automotive temperature grade (vs DSPIC33EP16GS506-I/PT)
- Lowest-cost entry in the GS506 64-TQFP family (vs DSPIC33EP128GS506-E/PT)
- Pin-compatible growth path without redesign (vs DSPIC33EP32GS506-E/PT)
Design Notes
The dsPIC33EP16GS506 requires a 3V to 3.6V supply with all VDD/VSS pin pairs connected - decouple each VDD pin with 100nF ceramic capacitors placed within 2mm of the pin, plus one bulk 10uF per supply domain. On GS-series parts, follow the datasheet's internal regulator capacitor recommendation exactly: an incorrect VCAP capacitor value or layout is the single most common cause of brown-out and erratic reset behavior in digital power boards.
In SMPS layouts, keep the PGA/comparator current-sense inputs on short, Kelvin-routed traces directly from the shunt resistor, guarded by ground on both sides, to prevent PWM switching noise from corrupting loop feedback. Route PGECx/PGEDx programming pairs as matched pairs to a 5-pin ICSP header; per the family programming specification, ICSPCLK and ICSPDAT must come from the same numbered pair (e.g. PGEC2 with PGED2).
Budget the 16KB Flash before committing: an interleaved PFC loop with fault handling and telemetry typically consumes 10-14KB, leaving little headroom for feature growth. Since the 32KB/64KB/128KB GS506 siblings are pin-to-pin drop-ins, consider designing the PCB against the larger-Flash variant and using the 16KB part for cost-optimized builds. Also verify which PGECx/PGEDx pair your debugger uses before freezing the board.
Compliance Information
Distributor listing (GlobalSpec) identifies the part as dsPIC Automotive, AEC-Q100, Functional Safety (FuSa) qualified. RoHS/REACH/halogen status not stated in provided data.
