DSPIC33EP32GS202-I/SO Microchip dsPIC33EP 16-Bit Digital Signal Controller 70MIPS 32KB Flash Digital Power PWM SOIC-28

DSPIC33EP32GS202-I/SO Product Overview

The DSPIC33EP32GS202-I/SO from Microchip is a high-performance 16-bit Digital Signal Controller (DSC) in a 28-lead wide-body SOIC package, purpose-built for digital power conversion and embedded applications requiring high-speed analog sensing and precision PWM control. Based on the dsPIC33E core running at 70 MIPS, the DSPIC33EP32GS202-I/SO features 32KB of Flash and 4KB of SRAM, smoothly handling digital power control loops, power factor correction (PFC), and various converter algorithms. A key highlight of the DSPIC33EP32GS202-I/SO is its digital-power-optimized high-speed peripherals: a 10-bit ADC sampling at up to 2.0 Msps with up to 8 analog input channels, four analog comparators with programmable references, two 10-bit digital-to-analog converters (DACs), and an advanced high-speed PWM module (up to four independent outputs configurable as complementary pairs, with high-resolution mode and programmable dead-time). UART, SPI, and I2C interfaces are also provided on the DSPIC33EP32GS202-I/SO. Operating from 3.0V to 3.6V with an industrial temperature range of -40°C to +85°C, the SOIC-28 package of the DSPIC33EP32GS202-I/SO facilitates manual soldering and automated production, making the DSPIC33EP32GS202-I/SO ideal for space- and cost-constrained compact digital power supplies, LED drivers, battery chargers, and high-efficiency power conversion systems.

DSPIC33EP32GS202-I/SO Core Features

Processor Core: The DSPIC33EP32GS202-I/SO features a 16-bit dsPIC33E core running at 70 MIPS, with a DSP-enhanced instruction set (single-cycle MAC)

Program Memory: The DSPIC33EP32GS202-I/SO provides 32KB Flash, In-Circuit Self-Programmable

Data Memory: The DSPIC33EP32GS202-I/SO includes 4KB SRAM, providing ample space for real-time control algorithms and data buffering

High-Speed ADC: The DSPIC33EP32GS202-I/SO integrates a 10-bit ADC up to 2.0 Msps with up to 8 analog input channels

Advanced PWM Module: The DSPIC33EP32GS202-I/SO offers up to 4 independent PWM outputs (configurable as complementary pairs) with high-resolution mode, programmable dead-time, and fault protection

Integrated Analog Peripherals: The DSPIC33EP32GS202-I/SO includes 4 analog comparators (with programmable references) and 2x 10-bit DACs

Communication Interfaces: The DSPIC33EP32GS202-I/SO supports 1x UART, 1x SPI, and 1x I2C

Signal Processing & Timers: The DSPIC33EP32GS202-I/SO features input capture, output compare/standard PWM, and multiple 16/32-bit timers

Safety & System Management: The DSPIC33EP32GS202-I/SO includes a hardware CRC engine, watchdog timer, and BOR/POR

Power Supply: The DSPIC33EP32GS202-I/SO operates from a 3.0V to 3.6V single supply with an on-chip voltage regulator

Package: The DSPIC33EP32GS202-I/SO comes in SOIC-28 (wide body 7.50mm), industrial temperature range -40°C to +85°C

DSPIC33EP32GS202-I/SO Applications

Digital Power & Converters: The DSPIC33EP32GS202-I/SO excels in DC/DC converters, AC/DC adapters, LED drivers, and battery chargers

Power Factor Correction (PFC): The DSPIC33EP32GS202-I/SO is ideal for active PFC controllers and motor drive PFC front ends

Power Supplies & Inverters: The DSPIC33EP32GS202-I/SO is used in micro inverters, solar optimizers, and UPS systems

Industrial Power: The DSPIC33EP32GS202-I/SO suits industrial power management modules and servo drive power supplies

Automotive Electronics: The DSPIC33EP32GS202-I/SO supports on-board DC/DC converters and LED drive control

Consumer Electronics: The DSPIC33EP32GS202-I/SO is applied in high-end appliance power supplies and power tool chargers

DSPIC33EP32GS202-I/SO Key Advantages

Ultra-Fast 10-bit ADC: The DSPIC33EP32GS202-I/SO's 2.0 Msps sampling rate precisely captures rapid current and voltage dynamics, easily enabling peak current mode and digital control loops

Complete Digital Power Analog Front-End: The DSPIC33EP32GS202-I/SO's four comparators (for overcurrent protection or zero-voltage/zero-current detection) and two DACs (for setting references or slope compensation) significantly reduce external component count, system cost, and PCB area

Flexible Advanced PWM: The DSPIC33EP32GS202-I/SO offers up to 4 independent outputs with high-resolution mode and complementary dead-time control, perfectly suited for LLC, phase-shifted full-bridge, buck/boost, and other topologies

70 MIPS Efficient DSP Performance: The DSPIC33EP32GS202-I/SO's dsPIC33E core with single-cycle MAC executes 2p2z compensators, digital filtering, and power control algorithms at high speed, meeting the real-time demands of high-frequency switching supplies

Manufacturing-Friendly SOIC-28 Package: The DSPIC33EP32GS202-I/SO's package enables easy hand soldering, visual inspection, and automated production, combining compact size with usability for high-density power designs

Industrial Temperature Range: The DSPIC33EP32GS202-I/SO operates from -40°C to +85°C, ensuring reliable operation in harsh environments

Mature Development Toolchain: The DSPIC33EP32GS202-I/SO is supported by free MPLAB X IDE and XC16 compiler, digital power reference designs, compensator libraries, and MCC code configurator, dramatically accelerating time-to-market

Long-Term Availability: The DSPIC33EP32GS202-I/SO is a mature dsPIC33EP GS family product purpose-built for digital power, with long lifecycle and stable supply commitment

Why Choose QIXINWEI

Years of experience in the electronics industry. Trusted by global customers.
Massive In-Stock Inventory – Ready to ship promptly.
BOM Matching Service – One-stop solution, save time.
PCBA Customization – Professional engineering team creates tailor-made solutions based on your needs.
Cost-Effective & Efficient – Better channel, better cost.
A dedicated team makes your procurement smoother.
Contact us for BOM quotes or PCBA inquiries.

FAQ

1. What is the DSPIC33EP32GS202-I/SO?
   The DSPIC33EP32GS202-I/SO is a digital-power-optimized 16-bit Digital Signal Controller (DSC) from Microchip in a 28-lead SOIC package, running at 70 MIPS with 32KB Flash, 4KB SRAM, a 2.0 Msps high-speed ADC, 4 comparators, 2 DACs, and advanced PWM—ideal for high-efficiency power conversion applications.
2. What does the “-I/SO” suffix mean on the DSPIC33EP32GS202-I/SO?
   “-I” indicates the industrial temperature range (-40°C to +85°C), and “/SO” denotes the 28-lead wide-body SOIC package of the DSPIC33EP32GS202-I/SO.
3. How does the GS series differ from the GP series (e.g., DSPIC33EP32GP502) in the context of the DSPIC33EP32GS202-I/SO?
   The GS series, including the DSPIC33EP32GS202-I/SO, is optimized for digital power, offering a faster ADC (2.0 Msps vs. 1.1 Msps), more analog comparators (4 vs. 2), and on-chip DACs, making the DSPIC33EP32GS202-I/SO particularly suited for fast protection, peak current control, and digital compensation loops in power conversion. The GP series is more general-purpose.
4. Does the DSPIC33EP32GS202-I/SO have CAN or CAN-FD?
   No. The DSPIC33EP32GS202-I/SO focuses on digital power control and does not include a CAN controller. For CAN connectivity, consider dsPIC33EP MC variants with CAN, or add an external SPI CAN controller.
5. What can the 2.0 Msps ADC of the DSPIC33EP32GS202-I/SO do?
   The 2.0 Msps sampling rate of the DSPIC33EP32GS202-I/SO allows very precise capture of transient and steady-state current and voltage dynamics in switching power supplies, making the DSPIC33EP32GS202-I/SO excellent for peak current mode control, valley detection, and high-bandwidth digital control loops.
6. What are the on-chip comparators and DACs used for on the DSPIC33EP32GS202-I/SO?
   The four high-speed analog comparators on the DSPIC33EP32GS202-I/SO are ideal for cycle-by-cycle overcurrent protection, zero-voltage/zero-current detection, and PWM fault triggering. The two 10-bit DACs of the DSPIC33EP32GS202-I/SO provide programmable reference voltages or slope compensation, greatly reducing external analog components.
7. What development tools are supported for the DSPIC33EP32GS202-I/SO?
   The DSPIC33EP32GS202-I/SO is supported by Microchip’s free MPLAB X IDE and MPLAB XC16 compiler, along with PICkit or ICD series debuggers, MPLAB Code Configurator (MCC), and Microchip’s digital power reference designs, enabling a quick project start.
8. Does the DSPIC33EP32GS202-I/SO have an internal oscillator, or is an external crystal required?
   The DSPIC33EP32GS202-I/SO features an internal high-speed RC oscillator with an on-chip PLL; no external crystal is needed. However, for precision switching and timing in digital power, an external crystal is recommended.
9. Are 32KB Flash and 4KB SRAM sufficient for the DSPIC33EP32GS202-I/SO?
   For digital power control algorithms (e.g., 2p2z compensators, PFC loops, LLC control) and simple communication stacks, the DSPIC33EP32GS202-I/SO's 32KB Flash and 4KB SRAM provide generous space. Higher-memory variants are available in the same family if needed.
10. Is the DSPIC33EP32GS202-I/SO suitable for new designs?
    The DSPIC33EP32GS202-I/SO is a mature, reliable digital-power-specific DSC with excellent cost-effectiveness. For new power designs requiring high analog integration and fast ADCs, the DSPIC33EP32GS202-I/SO remains an ideal choice with long-term availability.