DSPIC33FJ06GS202A-I/SO - 16-bit DSC 40 MIPS 6KB | Microchip
MPN: DSPIC33FJ06GS202A-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.16 | $41.60 |
| 25 | $3.98 | $99.50 |
| 100 | $3.52 | $352.00 |
| 1,000 | $3.05 | $3,050.00 |
DSPIC33FJ06GS202A-I/SO Overview
A digital signal controller combines the computational throughput of a DSP with the peripheral integration and control peripherals of a microcontroller, occupying the middle of the embedded-control hierarchy between general-purpose MCUs and standalone DSPs. The dsPIC33F family executes an enhanced 16-bit RISC instruction set with DSP engine support for multiply-accumulate operations, making it a common choice for closed-loop power conversion and motor control where deterministic interrupt latency matters.
The GS-series variant is purpose-built for digital switch-mode power supplies (SMPS). According to Microchip product documentation, the DSPIC33FJ06GS202A integrates high-speed PWM modules with 1.04 ns resolution, analog comparators, and a 10-bit ADC, alongside serial connectivity including I2C, SPI, UART/USART, IrDA, and LINbus. These peripherals allow a single 28-pin device to close multiple control loops that previously required several analog ICs.
Architecture highlights include a 3.3V operating supply (3.0V to 3.6V per the family datasheet), an internal fast RC oscillator, in-circuit serial programming (ICSP) with multiple PGECx/PGEDx pin pairs, and two on-chip comparators suited to cycle-by-cycle current limiting in peak-current-mode converters.
Typical applications include AC-to-DC converters, DC-to-DC converters, power factor correction (PFC) stages, uninterruptible power supplies (UPS), and digital lighting ballasts, where the high-resolution PWM directly drives half-bridge or flybridge power stages.
Design consideration: pair the controller with adequate decoupling on both VDD pins and route PGEC/PGED pairs consistently for ICSP; use any PGECx/PGEDx pair but never mix pair numbers.
This page adds value beyond the manufacturer datasheet by consolidating drop-in alternatives, distributor pricing tiers, and practical design guidance in one AI-citable reference.
Drop-in alternatives for DSPIC33FJ06GS202A-I/SO — 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 DSPIC33FJ06GS202A-I/SO (same form factor and footprint) — differing in Package, Packaging, Core Architecture, Operating Temperature, Operating Temperature Range.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ06GS202A-E/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ09GS302-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.41 / Unit
View Datasheet →DSPIC33FJ06GS202-I/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ06GS202A-I/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC RISC with DSP engine |
| Maximum CPU Speed | 40 MIPS |
| Program Memory (FLASH) | 6 KB (2K x 24) |
| SRAM | 1 KB (1024 bytes) |
| Supply Voltage | 3.0 V to 3.6 V (3.3 V nominal) |
| Oscillator / Clock Input | 40 MHz |
| Package | 28-SOIC (0.295 in, 7.50 mm width) |
| Operating Temperature Range | -40C to +85C (industrial, I-temp) |
| Communication Interfaces | I2C, SPI, UART/USART, IrDA, LINbus |
| PWM Modules | High-speed SMPS PWM with 1.04 ns resolution |
| ADC | On-chip 10-bit ADC |
| Comparators | On-chip analog comparators |
| Programming Interface | ICSP via PGECx/PGEDx pairs (multiple pairs) |
| Application Focus | Digital SMPS, PFC, AC-DC, DC-DC, UPS |
| Mounting Type | Surface Mount |
| Packaging | Tube |
| Product Family | dsPIC33FJ06GS202A (dsPIC 33F, GS series) |
DSPIC33FJ06GS202A-I/SO 28-soic (0.295 in, 7.50 mm width) Pin Configuration Guide
Pin configuration for DSPIC33FJ06GS202A-I/SO (28-soic (0.295 in, 7.50 mm width) 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 DSPIC33FJ06GS202A-I/SO.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ06GS202A-I/SO is suitable for 6 applications: Digital Switch-Mode Power Supplies (SMPS), AC-to-DC Converters, Power Factor Correction (PFC), Uninterruptible Power Supplies (UPS), DC-to-DC Converters, Digital Lighting and Electronic Ballasts.
Digital Switch-Mode Power Supplies (SMPS)
The DSPIC33FJ06GS202A-I/SO was designed specifically for digitally controlled SMPS topologies such as flyback, half-bridge, and buck converters. Its GS-series high-speed PWM module provides 1.04 ns duty-cycle resolution, enabling precise control of switching instants at hundreds of kHz without the jitter that plagues software-timed PWM on general-purpose MCUs. The on-chip comparators implement cycle-by-cycle current limiting in hardware, protecting the power stage within one switching period, while the 10-bit ADC samples the feedback divider for the outer voltage loop. Running at 40 MIPS, the 16-bit DSP core executes the compensator at the full switching frequency, replacing multiple analog control ICs with one 28-pin 3.3V device in a 28-SOIC footprint.
Recommended
AC-to-DC Converters
In offline AC-to-DC converters, the DSPIC33FJ06GS202A-I/SO manages both the input shaping and output regulation stages digitally. The 40 MIPS 16-bit core closes the output voltage loop while the high-resolution PWM drives the primary switching device, and the on-chip 10-bit ADC digitizes the isolated feedback signal each cycle. UART or I2C interfaces allow the controller to report status to a system supervisor, and LINbus support is useful in telecom rectifier architectures. Operating from a 3.0V to 3.6V supply in the industrial -40C to +85C range, the 28-SOIC package fits compact secondary-side control boards. The 6KB (2K x 24) FLASH accommodates the compensator, soft-start, and protection state machines typical of AC-DC firmware.
Recommended
Power Factor Correction (PFC)
Power factor correction demands fast inner current-loop control, which is precisely where the DSPIC33FJ06GS202A-I/SO excels. Its high-speed PWM and hardware comparators implement average or peak current mode control of the boost stage with 1.04 ns PWM resolution, while the 10-bit ADC samples input current and bus voltage synchronously with the switching period at 40 MIPS execution speed. Microchip explicitly lists PFC among the supported applications of the dsPIC33FJ06GS202A family. The 3.3V I/O simplifies interfacing with isolated feedback optocouplers and current-shunt amplifiers, and the 28-SOIC industrial-temperature package supports edge-of-board mounting on the PFC subassembly. The 6KB FLASH holds the PFC compensator plus inrush and brown-out protection logic.
Recommended
Uninterruptible Power Supplies (UPS)
Line-interactive and double-conversion UPS units rely on multiple coordinated loops: battery charging, inverter output regulation, and transfer switching. The DSPIC33FJ06GS202A-I/SO covers these with its GS-series multi-channel high-speed PWM (1.04 ns resolution), dual on-chip comparators for overcurrent trip, and 10-bit ADC for bus and output sensing, all executed by a deterministic 40 MIPS 16-bit DSP core. According to Microchip, UPS is an explicitly supported application of this family. The I2C and SPI interfaces connect to battery-management front ends and EEPROM logging, while UART links to a host controller. The -40C to +85C industrial grade and 28-SOIC 3.3V operation suit compact, fanless UPS control PCBs.
Recommended
DC-to-DC Converters
For board-level DC-to-DC converters such as telecom 48V-to-low-voltage bricks and point-of-load digital supplies, the DSPIC33FJ06GS202A-I/SO provides voltage-mode or current-mode regulation entirely in firmware. The high-resolution SMPS PWM supports phase-shifted and interleaved topologies with 1.04 ns edge placement, and the 40 MIPS DSP core runs PID or Type-III compensators at the switching frequency. The 10-bit ADC tracks output ripple, while the on-chip comparators provide hardware current limit independent of software latency. Multiple PGECx/PGEDx pairs allow field firmware updates over ICSP without removing the 28-SOIC from the board. With 6KB FLASH and 1KB RAM at 3.0V to 3.6V, power budgets stay modest.
Recommended
Digital Lighting and Electronic Ballasts
High-intensity discharge and fluorescent electronic ballasts require precisely phased resonant-half-bridge drive, which the DSPIC33FJ06GS202A-I/SO implements with its GS-series high-speed PWM channels and 1.04 ns dead-time resolution. The 40 MIPS core executes ignition, warm-up, and dimming state machines stored in the 6KB (2K x 24) FLASH, while the 10-bit ADC and comparators monitor lamp current for protection without external trip circuitry. I2C or DALI-style communication can ride on the UART/I2C peripherals for dimming commands. The 3.3V 28-SOIC industrial part operates from -40C to +85C, matching luminaire thermal environments. Digitally controlled ballasts also gain adaptive frequency tracking that fixed analog controllers cannot match.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ06GS202A-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ06GS202A-E/SO | DSPIC33FJ09GS302-I/SO | DSPIC33FJ06GS202-I/SO |
|---|---|---|---|---|
| Package | 28-SOIC (7.50 mm) | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Program Memory (FLASH) | 6 KB (2K x 24) | 6 KB (2K x 24) | 9 KB (3K x 24) | 6 KB (2K x 24) |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
| SMPS PWM Resolution | High-speed PWM, 1.04 ns | 1.04 ns | 1.04 ns | 1.04 ns |
| Silicon Revision | A-step | A-step | GS302 base | pre-A (check errata) |
Key Differentiators
- Industrial temperature grade at lowest cost position (vs DSPIC33FJ06GS202A-E/SO)
- Firmware headroom without PCB change (vs DSPIC33FJ09GS302-I/SO)
- Errata-mature A-step silicon (vs DSPIC33FJ06GS202-I/SO)
Design Notes
Connect all VDD and VSS pins and place a 100 nF ceramic decoupling capacitor at each VDD pin, as close to the package as possible, per the getting-started guidance in the Microchip dsPIC33FJ06GS family datasheet. The 28-SOIC exposed-leadframe body benefits from a small ground plane under the controller to reduce PWM switching noise coupling into the ADC front end. Keep the analog feedback traces (ANx inputs to the 10-bit ADC) short and away from PWM output traces to preserve effective ADC resolution.
ICSP pairing mistakes are the most common dsPIC33FJ06GS202A bring-up failure: the device offers multiple PGECx/PGEDx pairs, and you must use a matched pair, e.g., PGEC2 for ICSPCLK with PGED2 for ICSPDAT. Mixing pair numbers leaves the device unprogrammable. Also remember the pre-A (DSPIC33FJ06GS202) silicon may have errata relative to the A-step; check the Microchip errata sheet for your die revision before reusing legacy firmware, and always verify the exact -I/ versus -E/ temperature suffix on incoming reels.
The GS-series SMPS PWM drives power MOSFET gate drivers with fast edges; route PWM outputs with series resistors (10R-22R typical, estimate for damping) and keep gate-drive loops small to limit ringing. Place the controller's analog supply feed behind an RC or ferrite filter from the noisy digital 3.3V rail so the 10-bit ADC reference stays within its specified tolerance. At 40 MIPS, interrupt-driven control loops should be verified for worst-case latency using the MPLAB SIM cycle profiler rather than assumed.
Compliance Information
Compliance data was not present in the verified web data; verify RoHS/REACH status on the Microchip product page or the distributor environmental datasheet before procurement.
