DSPIC33EP32GS202T-E/MM - 16-Bit DSC 32KB Flash 70MIPS | Microchip
MPN: DSPIC33EP32GS202T-E/MM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.62 | $3.62 |
| 10 | $3.26 | $32.60 |
| 100 | $2.84 | $284.00 |
| 500 | $2.48 | $1,240.00 |
| 1,000 | $2.19 | $2,190.00 |
DSPIC33EP32GS202T-E/MM Overview
A digital signal controller combines the computational throughput of a DSP with the peripheral set and architecture of a microcontroller. Within the power-management IC hierarchy, a DSC sits at the control layer, closing feedback loops for switching converters, power-factor-correction stages, and inverter stages in real time. The dsPIC33 family replaces discrete analog control loops with firmware-based control, reducing component count while enabling programmable gains, fault handling, and communication.
Key features of the GS-series include a dedicated high-speed PWM module purpose-built for digital power: complementary outputs, dead-time insertion, duty-cycle resolution, and fault protection. Multiple high-speed ADC channels allow simultaneous sampling of current and voltage feedback signals, while the DSP engine provides single-cycle MAC and dual operand fetch suitable for PID and compensator calculations at loop rates unattainable by general-purpose MCUs. Functional Safety (FuSa) documentation support is noted by distributors for this family.
Microchip provides reference designs for the GS-series, including an Interleaved Power Factor Correction design that operates over a universal AC input range and produces a high-voltage DC output up to 350W, demonstrating the part's intended role in SMPS and PFC control.
Typical applications include switched-mode power supplies (SMPS), AC-DC and DC-DC converter control, PFC stages, LED drivers, uninterruptible power supplies, solar micro-inverters, and battery chargers.
Design consideration: because the device operates at up to 70 MIPS from an internal PLL, supply decoupling and the VCAP/VDDCORE capacitor must follow the datasheet layout guidance precisely; also verify which MIPS rating (60 vs 70) applies to your supply-voltage operating point before locking the oscillator configuration.
This page adds value beyond the datasheet by consolidating distributor availability, pricing tiers, drop-in same-family alternatives, and digital-power-specific design notes in one place.
Drop-in alternatives for DSPIC33EP32GS202T-E/MM — 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 DSPIC33EP32GS202T-E/MM (same form factor and footprint) — differing in Operating Temperature, Package, Series.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP32GS202-E/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP32GP502T-E/MM
✅ Drop-In✓ In Stock
$2.98 / Unit
View Datasheet →DSPIC33EP16GS202T-E/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP32GS202T-E/MM Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33EP DSC |
| Series | dsPIC33EP GS (digital power) |
| Flash Memory | 32 KB (32K x 8) |
| Execution Speed | 70 MIPS (Mouser listing; DigiKey lists 60 MIPS at some voltage ranges) |
| Package | 28-QFN-S (6x6 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +125C (E suffix, extended) |
| Application Focus | Digital power / SMPS |
| Safety Qualification Support | Functional Safety (FuSa) variant |
| Data Bus Width | 16 bit |
| Reference Design | Interleaved PFC, up to 350 W DC output |
| Programming Pins | ICSP via PGC/PGD (per Flash Programming Spec DS70005192B) |
DSPIC33EP32GS202T-E/MM 28-qfn-s (6x6 mm) Pin Configuration Guide
Pin configuration for DSPIC33EP32GS202T-E/MM (28-qfn-s (6x6 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 DSPIC33EP32GS202T-E/MM.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP32GS202T-E/MM is suitable for 6 applications: Switch-Mode Power Supply (SMPS) Control, Power Factor Correction (PFC) Stage, DC-DC Converter Modules, LED Driver and Lighting Control, Solar Micro-Inverter and Charger Control, Uninterruptible Power Supply (UPS) and Battery Chargers.
Switch-Mode Power Supply (SMPS) Control
The DSPIC33EP32GS202T-E/MM was designed specifically as the digital controller for SMPS topologies such as buck, boost, half-bridge, and LLC converters. Its GS-series high-speed PWM module provides complementary outputs with hardware dead-time insertion and cycle-by-cycle current limiting, while the fast ADC samples inductor current and output voltage at switching frequency. Closing the compensation loop in firmware with the DSP engine's single-cycle MAC replaces error-amp and optocoupler-heavy analog control, cutting component count. Trade-off: firmware latency must be budgeted within the switching period, so designers typically target 100-500 kHz switching frequencies where the 70 MIPS class core sustains stable loop execution.
Recommended
Power Factor Correction (PFC) Stage
Microchip's official reference design for this device family is an Interleaved Power Factor Correction system operating from universal AC input and delivering a high-voltage DC output up to 350W, confirming the DSPIC33EP32GS202T-E/MM's fit for PFC control. The interleaved topology requires two phase-shifted boost PWM outputs with current sharing - exactly what the GS-series PWM's phase-offset and complementary features provide. The ADC samples each phase current simultaneously so the firmware average-current-mode controller enforces sinusoidal input current with low THD. Using this controller allows programmable THD optimization and brown-out handling that fixed-function PFC ICs cannot offer, at the cost of firmware development effort.
Recommended
DC-DC Converter Modules
For telecom rectifiers, server VRMs, and industrial DC-DC bricks, the DSPIC33EP32GS202T-E/MM provides digital telemetry and adaptive control that analog PWM controllers lack. The 32 KB flash hosts the compensator plus PMBus-style communication firmware, enabling output-voltage trimming, fault logging, and health reporting demanded by modern power architectures. The extended -40C to +125C temperature grade (E suffix) suits outdoor telecom cabinets and automotive-adjacent environments. The 28-pin QFN-S (6x6 mm) footprint keeps controller board area minimal inside power modules, and the exposed pad grounds the die for low-noise analog sampling of current-sense signals during fast switching transitions.
Recommended
LED Driver and Lighting Control
Digitally controlled LED drivers benefit from the DSPIC33EP32GS202T-E/MM's combination of high-resolution PWM dimming, fast current-loop regulation, and communication peripherals for DALI or DMX-style protocols. The GS-series PWM supports low-duty-cycle operation with adequate resolution for deep dimming without flicker, while the ADC monitors LED string current for closed-loop regulation against temperature-induced forward-voltage drift. Firmware-based control enables NTC-protected derating curves and multi-channel color mixing. The extended temperature rating covers enclosed luminaires, and the 6x6 mm QFN-S package fits within standard LED driver PCB outlines, replacing several analog trim potentiometers with digital calibration stored in flash.
Recommended
Solar Micro-Inverter and Charger Control
Grid-tied micro-inverters and MPPT solar chargers require concurrent execution of MPPT algorithms, grid-current shaping, and protection logic - workloads the DSPIC33EP32GS202T-E/MM's DSP engine handles with single-cycle MAC operations feeding its control loops. The 32 KB flash accommodates MPPT search code plus safety firmware including anti-islanding checks. Hardware PWM fault inputs can trip outputs within one switching cycle on overcurrent, matching grid-code response expectations. Designers typically pair the controller with gate drivers and isolated sensing; the digital approach allows firmware parameter updates per panel configuration without hardware revision, an advantage over fixed analog MPPT controllers in multi-panel field deployments.
Recommended
Uninterruptible Power Supply (UPS) and Battery Chargers
Line-interactive and online UPS designs use the DSPIC33EP32GS202T-E/MM to control the inverter bridge, the AC-DC rectifier front end, and the battery charger from a single 16-bit controller, consolidating three analog control stages into one firmware platform. Multi-channel ADC sampling captures battery voltage/current, bus voltage, and output feedback simultaneously, while the PWM fault trip hardware protects against shoot-through in the H-bridge. Multi-stage charging profiles (bulk, absorption, float, temperature-compensated) are trivially implemented in firmware and adapted per battery chemistry. The extended -40C to +125C grade suits garage and outdoor cabinet installations where ambient extremes are common.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP32GS202T-E/MM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP32GS202-E/MM | DSPIC33EP32GP502T-E/MM | DSPIC33EP16GS202T-E/MM |
|---|---|---|---|---|
| Package | 28-QFN-S (6x6 mm) | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 32 KB | 16 KB |
| Execution Speed | up to 70 MIPS (voltage dependent) | up to 70 MIPS | up to 70 MIPS class | up to 70 MIPS class |
| Peripheral Focus | GS-series digital power (high-speed PWM + fast ADC) | GS digital power - identical | GP-series general purpose | GS digital power - identical |
| Operating Temperature | -40C to +125C (E suffix) | -40C to +125C | -40C to +125C (E suffix) | -40C to +125C (E suffix) |
| Packaging | Tape & Reel (T suffix) | Tray | Tape & Reel (T suffix) | Tape & Reel (T suffix) |
Key Differentiators
- Dedicated digital-power PWM and ADC peripheral set (vs DSPIC33EP32GP502T-E/MM)
- Double the code space of the entry GS part (vs DSPIC33EP16GS202T-E/MM)
- High core throughput for firmware control loops (vs DSPIC33EP32GP502T-E/MM)
Design Notes
Decouple VDD and AVDD independently with 0.1 uF ceramic capacitors placed within 2 mm of each pin, plus a bulk 4.7-10 uF capacitor per rail. The GS-series fast ADC shares silicon with the switching PWM, so noise injected through an inadequately decoupled AVDD directly corrupts current-loop feedback samples. Separate the analog ground from the power ground under the controller and tie them at a single point near the exposed pad. Estimated: at 70 MIPS with typical Idd of tens of milliamps (per family data sheet tables), dissipation stays well under the QFN-S thermal limit, but verify with your actual oscillator configuration.
The 28-QFN-S (6x6 mm) exposed pad must be soldered to a grounded copper pour with an array of thermal vias (typical 4-6 vias of 0.3 mm) - the pad is both the main thermal path and the low-inductance ground reference for the digital-power PWM switching currents. Route PGC/PGD programming traces with easy pad access for ICSP during production, per Microchip Flash Programming Specification 70005192B which diagrams the programming pin locations for the 28-pin family packages.
Three recurring pitfalls: (1) Configure the oscillator PLL fuses conservatively - a wrong divide setting can request an illegal core frequency for the present VDD and cause brown-out resets; verify the MIPS-vs-voltage table in data sheet DS70005208E. (2) Do not confuse the /MM (28-QFN-S 6x6) footprint with the /M6 (28-UQFN 4x4) variant - they are NOT footprint-compatible despite similar suffixes. (3) When migrating firmware from GP-series parts, remove/rebuild all power-PWM register code, as peripheral maps differ.
Compliance Information
Compliance status not explicitly stated in the retrieved data. Verify via the Microchip product page or request material declarations from MicrochipDirect.
