DSPIC33EP32GS202-E/M6 - 16-bit DSC 32KB 70MIPS | Microchip
MPN: DSPIC33EP32GS202-E/M6 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.05 | $4.05 |
| 10 | $3.85 | $38.50 |
| 100 | $3.55 | $355.00 |
| 500 | $3.3 | $1,650.00 |
| 1,000 | $3.05 | $3,050.00 |
DSPIC33EP32GS202-E/M6 Overview
A Digital Signal Controller combines the compute architecture of a digital signal processor with the peripheral set and interrupt structure of a microcontroller. In the power-management hierarchy, a DSC sits between a general-purpose MCU and a dedicated DSP, making it the preferred controller class for closed-loop switch-mode power supplies (SMPS), digital power conversion, power factor correction, and motor control where deterministic loop timing and high-speed analog feedback are required.
Key features include a 16-bit dsPIC33EP core executing up to 70 MIPS, 32 KB of Flash with self-programming capability, and peripherals purpose-built for digital power: high-speed analog comparators, a DAC, and a high-speed ADC feeding the active PWM module. DigiKey lists this device as a Functional Safety (FuSa) capable part, which matters for systems targeting safety-rated power conversion. The exposed-pad UQFN-28 package gives low-inductance ground connections and compact 4x4 mm board area.
Architecturally, the dsPIC33EP family uses an enhanced Harvard structure with DSP multiply-accumulate instructions, enabling PID and compensation-loop execution in a fraction of the cycle budget of a general MCU. The PWM module supports complementary outputs with dead-time insertion, essential for half-bridge and synchronous rectification topologies.
Typical applications include digitally controlled AC-DC and DC-DC power supplies, interleaved power factor correction (Microchip provides an interleaved PFC reference design for this family), LED drivers, and battery chargers.
Design consideration: supply 3.0 V to 3.6 V to VDD and use multiple PGECx/PGEDx pin pairs correctly matched as pairs for ICSP programming and debugging; mixing PGEC2 with PGED1 will fail programming.
This page synthesizes distributor pricing, verified drop-in alternatives, datasheet sourcing, and practical design notes not consolidated in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33EP32GS202-E/M6 — 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 DSPIC33EP32GS202-E/M6 (same form factor and footprint) — differing in Package, Operating Temperature, Core Architecture, Supply Voltage, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP32GS202-I/M6
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →DSPIC33EP16GS202-I/M6
✅ Drop-In✓ In Stock
$2.1 / Unit
View Datasheet →DSPIC33EP32GS202T-E/M6
✅ Drop-In✓ In Stock
$2.84 / Unit
View Datasheet →DSPIC33EP32GS202-E/M6 Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33EP DSC |
| Core Speed | 70 MIPS |
| Program Memory (Flash) | 32 KB (32K x 8) |
| Supply Voltage | 3 V to 3.6 V |
| Operating Temperature | -40C to +125C (E grade) |
| Package | 28-UQFN (4x4 mm), exposed pad (M6) |
| Mounting Type | Surface Mount |
| Product Family | dsPIC33EP32GS202 (Digital Power / SMPS) |
| Key Peripherals | High-speed ADC, DAC, comparators, active PWM for digital power |
| Target Applications | Digital Power SMPS, power conversion |
| Functional Safety | FuSa supported (per DigiKey listing) |
| Debug/Programming | ICSP via PGECx/PGEDx pairs, MPLAB SNAP compatible |
| Status | In Production |
| Category | Digital Signal Controllers / DSC |
DSPIC33EP32GS202-E/M6 28-uqfn (4x4 mm), exposed pad (m6) Pin Configuration Guide
Pin configuration for DSPIC33EP32GS202-E/M6 (28-uqfn (4x4 mm), exposed pad (m6) 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 DSPIC33EP32GS202-E/M6.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP32GS202-E/M6 is suitable for 6 applications: Digitally Controlled SMPS, Interleaved Power Factor Correction, LED Drivers, Battery Chargers, Industrial Power Conversion, Embedded Control with DSP Functions.
Digitally Controlled SMPS
The DSPIC33EP32GS202-E/M6 is purpose-built for closed-loop switch-mode power supply control, combining a 70 MIPS 16-bit core with a high-speed ADC that samples converter output voltage and current, analog comparators for cycle-by-cycle overcurrent protection, and an active PWM module with complementary outputs and dead-time insertion. In a typical buck or flyback design, the ADC trigger is synchronized to the PWM period so the control loop executes deterministically once per switching cycle, allowing compensation networks to be implemented in firmware with DSP multiply-accumulate instructions. The E-grade -40C to +125C rating suits power supplies mounted near hot switching components.
Recommended
Interleaved Power Factor Correction
Microchip provides a dedicated reference design for interleaved Power Factor Correction built on the GS-series SMPS dsPIC DSC family, making the DSPIC33EP32GS202-E/M6 a natural controller for PFC front-ends in AC-DC supplies above 75 W. The high-speed ADC samples the input current and bus voltage while the PWM module generates phase-shifted drive signals for the interleaved boost stages, and the on-chip comparators provide fast overcurrent shutdown independent of software. Running the average-current-mode control loop at 70 MIPS leaves ample cycle budget for power-metering and housekeeping tasks in the same chip, eliminating a separate supervisory MCU.
Recommended
LED Drivers
Digitally controlled LED drivers benefit from the DSPIC33EP32GS202-E/M6's combination of PWM resolution and analog feedback. The device's PWM module can generate dimming and current-regulation waveforms with fine duty-cycle resolution, while the high-speed ADC monitors LED string current for closed-loop regulation and the DAC/comparator blocks implement fast overcurrent limits that protect the string during transients. The compact 4x4 mm UQFN-28 exposed-pad package fits the tight board space typical of LED driver modules, and the -40C to +125C E-grade tolerates the elevated ambient temperatures inside luminaire housings. Firmware-based control also enables programmable dimming curves and communication features without hardware changes.
Recommended
Battery Chargers
Smart battery chargers require accurate current and voltage regulation with multi-stage charging profiles, which the DSPIC33EP32GS202-E/M6 implements in firmware on its 70 MIPS core. The high-speed ADC continuously samples battery voltage, charge current, and temperature (via NTC), while the PWM stage drives the charger's power conversion stage with dead-time-controlled outputs for synchronous rectification efficiency. The extended -40C to +125C operating range covers automotive-adjacent and industrial charging environments, and the on-chip comparators provide hardware fast-fault response for cell protection. Because charging algorithms are firmware, one hardware platform supports multiple battery chemistries.
Recommended
Industrial Power Conversion
Industrial power systems - solar micro-inverters, telecom rectifiers, and motor drive front-ends - operate in wide ambient temperature ranges and demand deterministic control; the DSPIC33EP32GS202-E/M6 addresses both with its -40C to +125C rating and cycle-synchronized ADC/PWM architecture. The 16-bit DSP core executes PI and resonant compensators in real time while the comparators handle hardware-level fault thresholds. Functional Safety (FuSa) support noted in DigiKey's listing assists designs targeting safety-assessed power conversion. The exposed-pad UQFN-28 package provides a low-inductance ground reference that reduces switching-noise coupling into the analog measurements critical to loop stability.
Recommended
Embedded Control with DSP Functions
Beyond pure power conversion, the DSPIC33EP32GS202-E/M6 serves general embedded control applications that need moderate DSP capability: sensor signal conditioning, digital filtering, and closed-loop actuator control. The dsPIC33EP core's multiply-accumulate instructions accelerate FIR and IIR filters, while standard MCU peripherals handle UART, SPI, and I2C communication for system integration. The 32 KB Flash accommodates application code plus a boot loader for field updates, and the 3.0 V to 3.6 V supply matches common 3.3 V logic rails directly. With 70 MIPS available, the part can run a control loop and communication stack concurrently with deterministic timing.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP32GS202-E/M6 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP32GS202-I/M6 | DSPIC33EP16GS202-I/M6 | DSPIC33EP32GS202T-E/M6 |
|---|---|---|---|---|
| Package | 28-UQFN (4x4 mm) M6 | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 16 KB | 32 KB |
| Core Speed | up to 70 MIPS | up to 70 MIPS | up to 70 MIPS | up to 70 MIPS |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) |
| Supply 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 |
| Digital Power Peripherals | High-speed ADC, DAC, comparators, active PWM | Same GS202 peripheral set | Same GS202 peripheral set | Same GS202 peripheral set |
| Supply Format | Tray | Tray | Tray / Tape & Reel variants | Tape & Reel |
Key Differentiators
- Extended temperature headroom (vs DSPIC33EP32GS202-I/M6)
- Double the program memory (vs DSPIC33EP16GS202-I/M6)
- Production-volume supply format (vs DSPIC33EP32GS202T-E/M6)
Design Notes
Solder the exposed pad of the 28-UQFN (M6) package to a solid ground pour with an array of thermal vias. In digital-power designs this pad is the primary low-inductance ground return for the switching currents and also the main heat-removal path for -40C to +125C operation. Skipping the exposed-pad connection is the single most common cause of intermittent ground faults and poor ADC accuracy with UQFN dsPIC devices.
The DSPIC33EP32GS202 provides multiple PGECx/PGEDx pin pairs for ICSP programming and debugging. You may use any pair, but the clock and data pins must come from the same pair - for example PGEC2 with PGED2. Mixing PGEC2 with PGED1 causes programming failures, and depending on configuration-word settings some pairs may be disabled, so choose the ICSP pair early in layout and keep the header traces short. All VDD and VSS pins must be connected.
Supply 3.0 V to 3.6 V on all VDD pins with local 100 nF decoupling at each pin plus bulk capacitance near the package; the GS202's ADC accuracy and comparator thresholds depend on a quiet, well-regulated 3.3 V rail. When the controller is powered from the same converter it regulates, add RC filtering or an LDO stage for the analog supply (AVDD) so switching ripple does not feed the measurement path.
Compliance Information
Verified web data does not include explicit RoHS/REACH statements for DSPIC33EP32GS202-E/M6. Verify on the Microchip product page or via distributor certificate of conformance.
