DSPIC33EP32GS504T-I/PT - 70MIPS 32KB Flash DSC 44-TQFP | Microchip
MPN: DSPIC33EP32GS504T-I/PT ✓ NakahandaDSPIC33EP32GS504T-I/PT Ulas
A digital signal controller combines the compute throughput of a DSP with the peripheral integration and deterministic control of a microcontroller. Within the power-management hierarchy, the DSC sits at the top of embedded control ICs, closing high-bandwidth feedback loops for switch-mode power conversion where a general-purpose MCU cannot meet loop-update-rate requirements.
Key features include the SMPS-oriented dsPIC33EP GS core rated at 70 MIPS, a high-speed 12-bit ADC with multiple sample-and-hold circuits for simultaneous multi-rail sensing, on-chip DAC comparators, and high-resolution PWM (HRPWM) peripherals purpose-built for digital power. The GS (General Purpose SMPS) family also integrates DMA, UART, SPI, and I2C for supervisory communication, and the device is part of Microchip's Functional Safety (FuSa) offering per DigiKey classification.
Architecturally, the DSP engine provides single-cycle MAC and dual 40-bit accumulators, enabling execution of compensator and filter code within tight PWM interrupt budgets. The Flash-based program memory supports in-circuit self-programming, and the peripheral ecosystem is shared across the dsPIC33EP family for code reuse.
Typical applications include AC-DC power supplies, interleaved power factor correction (Microchip's 350W Interleaved PFC reference design targets this device), DC-DC converters, digital lighting ballasts, and battery chargers.
When designing with this device, budget the ADC sampling and compensator execution against the 70 MIPS core so loop bandwidth and PWM update rates are met with margin.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Mga alternatibo na pwedeng ilagay na DSPIC33EP32GS504T-I/PT — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok DSPIC33EP32GS504T-I/PT (parehas na form factor at footprint) — pagkakaiba sa Functional Safety Support, Package, Operating Temperature, Analog Peripherals, Core.
DSPIC33EP32GS504T-E/PT
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
DSPIC33EP16GS504-I/PT
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →DSPIC33EP32GP504T-I/PT
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →DSPIC33EP32MC504
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
DSPIC33EP32GS504-I/PT
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →DSPIC33EP32GS504T-I/PT Mga Pinakamataas na Rating at Electrical Characteristics
| Core | dsPIC33EP 16-bit DSC |
| Core Speed | 70 MIPS |
| Program Memory (Flash) | 32KB (32K x 8) |
| Volte ng Pagbibigay | 3.3 V |
| Packhaging | 44-TQFP (10x10 mm) |
| Temperature na Operasyon | -40C to +125C (I grade) |
| Product Family | dsPIC33EP GS (SMPS / Digital Power) |
| ADC | High-speed 12-bit ADC |
| DAC | On-chip DAC |
| PWM | High-resolution PWM (HRPWM) for SMPS |
| Application Focus | Digital power conversion (SMPS, PFC) |
| Functional Safety Support | Yes (FuSa classification) |
| Uri ng Pagpapasok | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
| Reference Design | Microchip 350W Interleaved PFC reference design |
Gabay sa Pin Configuration ng DSPIC33EP32GS504T-I/PT 44-tqfp (10x10 mm)
Pin configuration para sa DSPIC33EP32GS504T-I/PT (44-tqfp (10x10 mm) package). Kasama sa digital IC na ito ang GPIO, mga communication interface (UART, SPI, I2C), at mga power pin. Sumangguni sa datasheet ng manufacturer para sa mga alternatibong function ng pin at mga opsyon sa configuration. Mahalaga para sa disenyo ng embedded system at PCB layout.
Wala ng detalyadong pinout data na magagamit para sa DSPIC33EP32GS504T-I/PT.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
DSPIC33EP32GS504T-I/PT ay nararapat para sa 6 aplikasyons: Interleaved Power Factor Correction, AC-DC Switch-Mode Power Supplies, DC-DC Converters and Point-of-Load Rails, Digital Lighting and LED Drivers, Battery Chargers, Industrial Digital Power and Automation Control.
Interleaved Power Factor Correction
The DSPIC33EP32GS504T-I/PT is the documented controller for Microchip's Interleaved PFC reference design, which operates from universal AC input and delivers a single high-voltage DC output up to 350W. The high-speed 12-bit ADC samples inductor current and bus voltage synchronously with the PWM period, while the on-chip DAC comparators provide cycle-by-cycle overcurrent protection without core intervention. Two interleaved boost phases are controlled by the high-resolution PWM peripheral with phase-shifted outputs, reducing input ripple current and easing EMI filter design. The 70 MIPS core executes the average-current-mode compensator within each switching cycle, sustaining loop bandwidths that general-purpose MCUs cannot reach at comparable power levels.
Inirekomenda
AC-DC Switch-Mode Power Supplies
In digitally controlled AC-DC supplies, the DSPIC33EP32GS504T-I/PT replaces analog control ICs by closing voltage and current loops in firmware. The GS-family ADC's multiple sample-and-hold circuits capture output voltage, input voltage, and current feedback nearly simultaneously, avoiding inter-channel skew that degrades multi-loop control. The high-resolution PWM module provides sub-nanosecond duty-cycle resolution, enabling precise regulation at converters switching from tens of kilohertz up to several hundred kilohertz. Firmware control also allows soft-start profiles, burst-mode light-load operation, and adaptive dead-time to be tuned without hardware changes. The 32KB Flash accommodates full control plus supervisory firmware, and the industrial -40C to +125C grade suits enclosed adapter and open-frame PSU environments.
Inirekomenda
DC-DC Converters and Point-of-Load Rails
For buck, boost, and LLC DC-DC stages, the DSPIC33EP32GS504T-I/PT offers deterministic ADC-to-PWM latency backed by the DAC comparators for instantaneous current limiting. The high-resolution PWM enables precise phase management for multiphase or zero-voltage-switching topologies, while the 70 MIPS DSP core with single-cycle MAC executes PID or 2p2z compensators every switching period. Digital implementation allows runtime efficiency optimization, current sharing between parallel converters, and telemetry over UART or I2C to a host. Because the feedback compensators are firmware objects, one PCB design can be re-characterized for different output voltages by reflashing, reducing SKU proliferation in multi-rail industrial and server power boards.
Inirekomenda
Digital Lighting and LED Drivers
Digitally controlled LED drivers benefit from the DSPIC33EP32GS504T-I/PT's combination of high-resolution PWM dimming and fast ADC-based current regulation. The HRPWM module delivers fine duty and phase resolution for dimming without visible flicker, while the high-speed ADC plus DAC comparator protects the LED string with cycle-by-cycle current limiting. Firmware dimming curves, temperature derating, and communication protocols such as DALI-over-UART can be layered into the 32KB Flash. The 3.3V supply and industrial -40C to +125C temperature range suit outdoor luminaires and enclosed drivers, and the digital architecture enables power-factor correction front ends and constant-current back ends to share a single controller, cutting BOM cost versus discrete analog solutions.
Inirekomenda
Battery Chargers
Multi-stage battery charging (CC/CV, taper, termination) maps naturally onto the DSPIC33EP32GS504T-I/PT. The high-speed ADC tracks charge current and pack voltage every switching cycle, and the HRPWM adjusts converter duty with the resolution needed to hold tight constant-current tolerances during bulk charge. Firmware state machines implement chemistry-specific profiles, cell-balancing coordination, and fault handling, while DAC comparators provide hardware overcurrent protection independent of software. The DSP core headroom at 70 MIPS allows charging control and coulomb-counting or gauging communication to run concurrently. The industrial temperature grade and active lifecycle status make it dependable for consumer, industrial, and light-EV charger platforms with multi-year production expectations.
Inirekomenda
Industrial Digital Power and Automation Control
Beyond converters, the DSPIC33EP32GS504T-I/PT serves industrial automation nodes that combine fast feedback control with communication. The 70 MIPS core, DMA controller, and UART/SPI/I2C peripherals let one chip handle inverter or heater control loops while reporting status to a PLC over serial links. Microchip's Functional Safety (FuSa) classification for this device supports deployment in equipment where development-process documentation is required. The 32KB Flash stores control plus diagnostics firmware, and the -40C to +125C industrial rating covers unconditioned factory cabinets. Because compensation and protection parameters live in firmware, field updates and feature variants ship without PCB respins, and the shared dsPIC33EP ecosystem eases migration across the family footprint.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for DSPIC33EP32GS504T-I/PT — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | DSPIC33EP32GS504T-E/PT | DSPIC33EP16GS504-I/PT | DSPIC33EP32GP504T-I/PT | DSPIC33EP32MC504 |
|---|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Memory | 32KB (32K x 8) | 32KB (32K x 8) | 16KB | 32KB (32K x 8) | 32KB (32K x 8) |
| SMPS Peripheral Set (GS family) | Yes (high-speed ADC + HRPWM) | Yes (identical die) | Yes (GS family) | No (GP general-purpose family) | No (MC motor-control family) |
Pangunahing mga Pagkakaiba
- GS-family SMPS peripheral integration (kumpara saDSPIC33EP32GP504T-I/PT)
- Extended-temperature drop-in available (kumpara saDSPIC33EP32GS504T-E/PT)
- Double the Flash of the cost-reduced sibling (kumpara saDSPIC33EP16GS504-I/PT)
Talaan ng Disenyo
Estimated: budget the control loop against the 70 MIPS core before committing to a switching frequency. For example, a compensator consuming roughly 200 instructions per PWM interrupt at 200 kHz update rate uses about 40 MIPS of headroom, leaving margin for supervisory code - but faster switching frequencies consume proportionally more core time. Move time-critical current-limit decisions to the on-chip DAC comparators rather than software interrupts so protection latency is independent of firmware load.
Place the 3.3V supply decoupling (100 nF ceramic per VDD/VSS pair plus bulk capacitance) directly adjacent to the TQFP power pins, and keep the high-speed ADC reference and analog feedback traces away from HRPWM output switching loops. Route the PWM gate-drive outputs away from the ADC input traces; the GS family's ADC accuracy depends on a quiet analog ground referenced at a single point near the device. Follow the layout guidance in Microchip's Interleaved PFC reference design documentation, which was validated on this controller.
Do not confuse temperature and packaging suffixes when ordering: -I/PT is the industrial -40C to +125C tape-and-reel part, -E/PT extends to +150C, and dropping the T yields tube packaging. Because the GS, GP, and MC families share the 44-TQFP footprint but differ in peripheral sets, a footprint-compatible swap without re-verifying ADC and HRPWM register compatibility will fail at bring-up. Always verify Flash utilization fits 32KB before downsizing to DSPIC33EP16GS504-I/PT for cost.
Impormasyon ng Pagsunod sa Kautusan
Compliance status not stated in the provided web data; verify RoHS/REACH status on the Microchip product page or distributor compliance certificates before release. DigiKey classifies the device under Microchip's Functional Safety (FuSa) offering.