DSPIC33FJ09GS302T-E/SO - 16-bit 40 MIPs DSC 9KB Flash | Microchip
MPN: DSPIC33FJ09GS302T-E/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.99 | $2.99 |
| 10 | $2.69 | $26.90 |
| 100 | $2.41 | $241.00 |
| 500 | $2.15 | $1,075.00 |
| 1,600 | $2.69 | $4,304.00 |
DSPIC33FJ09GS302T-E/SO Overview
A digital signal controller combines the computational throughput of a DSP core with the peripheral integration and ease of use of a microcontroller. In the power-management hierarchy, a DSC sits above basic MCUs because it executes tight control loops - such as Proportional-Integral-Derivative (PID) loops in switch-mode power supplies - at sampling rates that general-purpose MCUs cannot sustain.
Key features of the DSPIC33FJ09GS302 include a 40 MIPS dsPIC33F core, on-chip FLASH of 9KB organized as 3K x 24-bit instruction words, and dedicated peripherals supporting common multi-loop digital switch-mode power supply (SMPS) topologies. Per Microchip product documentation, the device family specifically supports AC-to-DC converters, DC-to-DC converters, Power Factor Correction (PFC), and uninterruptible power supply applications.
The GS-series architecture pairs the 16-bit CPU with high-speed PWM and analog peripherals that close current and voltage loops in hardware-friendly fashion, reducing CPU overhead in inner control loops. The extended-temperature (-40C to +125C per the E temp grade) and AEC-Q100 qualification make the part suitable for automotive and harsh-environment power electronics.
Typical applications include interleaved Power Factor Correction stages (Microchip publishes an interleaved PFC reference design producing up to 350W from universal input), digital AC-DC and DC-DC converters, UPS inverters, and automotive onboard chargers.
Design consideration: use the Tape & Reel format (T suffix) for automated assembly; the minimum order quantity on Tape & Reel is 1,600 units at $2.68750 each as of 2026-09-26 per DigiKey.
This page adds value beyond the datasheet by consolidating distributor pricing, drop-in family alternatives, comparison tables, and practical design notes in one place for procurement and engineering teams.
Drop-in alternatives for DSPIC33FJ09GS302T-E/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 DSPIC33FJ09GS302T-E/SO (same form factor and footprint) — differing in Package, RAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ09GS302-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.41 / Unit
View Datasheet →DSPIC33FJ09GS302-E/SO
✅ Drop-In✓ In Stock
$2.69 / Unit
View Datasheet →DSPIC33FJ06GS202A-E/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ06GS202A-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.05 / Unit
View Datasheet →DSPIC33FJ06GS102A-I/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ09GS302T-E/SO Maximum Ratings & Electrical Characteristics
| Core | dsPIC33F 16-bit |
| Max CPU Speed | 40 MIPS |
| Program Memory | 9KB (3K x 24) FLASH |
| RAM | 1K x 8 |
| Package | 28-SOIC |
| Mounting Type | Surface Mount |
| Product Series | dsPIC 33F (GS-series, digital power) |
| Qualification | AEC-Q100 qualified (automotive grade) |
| Operating Temperature | -40C to +125C (E extended temp grade) |
| Packaging | Tape & Reel (T suffix), MOQ 1600 |
| Target Applications | Digital SMPS, AC-DC, DC-DC, PFC, UPS |
DSPIC33FJ09GS302T-E/SO 28-soic Pin Configuration Guide
Pin configuration for DSPIC33FJ09GS302T-E/SO (28-soic 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 DSPIC33FJ09GS302T-E/SO.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ09GS302T-E/SO is suitable for 6 applications: Digital Power Factor Correction (PFC), AC-to-DC Converter Control, DC-to-DC Converter Digital Control, Uninterruptible Power Supplies (UPS), Automotive Digital Power Systems, Motor Control and Embedded Power Stages.
Digital Power Factor Correction (PFC)
The DSPIC33FJ09GS302T-E/SO is a natural fit for digital PFC because Microchip built the GS-series specifically for multi-loop SMPS control, and the 40 MIPS core sustains the inner current loop sampling rates that average-current-mode PFC demands. Microchip's interleaved PFC reference design for this family demonstrates the target performance: universal AC input, single high-voltage DC output, and up to 350W of power. In a typical design the DSC reads inductor current and bus voltage through its ADC, computes the duty correction in firmware each switching cycle, and drives the PWM stage - replacing a dedicated analog PFC controller while adding programmability for transient response and brownout handling. The AEC-Q100 E-grade also enables PFC stages in automotive onboard charger front ends.
Recommended
AC-to-DC Converter Control
For AC-to-DC converter control, the DSPIC33FJ09GS302T-E/SO replaces multiple analog control chips with one programmable DSC. Microchip's product page explicitly lists AC-to-DC converters among the supported applications, and the 40 MIPS 16-bit core executes the voltage outer loop and current inner loop in a single device. The controller runs the rectification-stage PWM, monitors output regulation through its ADC, and implements protection features such as over-voltage and over-current shutdown entirely in firmware, which shortens design iteration compared with fixed-function controller ICs. In flyback and forward topologies for industrial and automotive auxiliary supplies, the 9KB FLASH accommodates soft-start sequences, burst-mode idle, and fault logging, while the extended -40C to +125C operating range suits sealed power supplies without forced-air cooling.
Recommended
DC-to-DC Converter Digital Control
The DSPIC33FJ09GS302T-E/SO suits digitally controlled DC-DC converters - buck, boost, and synchronous topologies used in telecom rectifiers, automotive 48V/12V conversion, and industrial power shelves. Running a PID or 2-pole/2-zero compensator at the switching frequency is well within the 40 MIPS budget, and Microchip positions the GS-series ADC and PWM peripherals specifically for these inner-loop tasks per its product documentation. Digital control brings adaptive gain scheduling: the same chip can implement voltage-mode at light load and current-mode at heavy load, plus constant-current charging profiles, without changing hardware. The 28-SOIC footprint keeps the controller compact on dense power boards, and firmware-updatable control laws allow one PCB to serve multiple output-voltage SKUs, cutting inventory cost across product families.
Recommended
Uninterruptible Power Supplies (UPS)
Microchip lists uninterruptible power supplies as a primary target application for the dsPIC33FJ09GS302 family. A UPS demands simultaneous control of an inverter stage, a battery charger, and transfer logic - exactly the multi-loop workload the 40 MIPS DSC core and SMPS-oriented peripherals were designed for. The 9KB FLASH holds the state machine for line/battery mode transitions, sine-wave generation tables, and battery charge management, while firmware-defined protection reacts faster than discrete comparator chains can in many designs. The AEC-Q100 qualification and -40C to +125C E-grade of this exact suffix extend UPS capability into harsh and vehicular environments, such as DC UPS modules for industrial cabinets and telecom outdoor cabinets where ambient temperatures routinely exceed commercial grade limits.
Recommended
Automotive Digital Power Systems
The T-E/SO suffix is the automotive-relevant option in this family: it combines AEC-Q100 qualification (confirmed by Microchip USA product data) with the -40C to +125C extended temperature range. That makes the part appropriate for automotive DC-DC converters feeding 12V accessory rails, small onboard-charger auxiliaries, and electric powertrain support supplies where an AEC-Q100 line item is mandatory on the BOM. The 16-bit 40 MIPS core handles the fast inner current loops of automotive power stages, and the single 28-SOIC package simplifies component qualification paperwork compared with multi-chip control solutions. Firmware-level fault handling - cycle-by-cycle current limit, soft recovery after faults - supports the robustness expectations of automotive power electronics platforms.
Recommended
Motor Control and Embedded Power Stages
While Microchip's headline positioning for the GS-series is digital power conversion, the same 40 MIPS core, high-resolution PWM framework, and fast ADC make the DSPIC33FJ09GS302T-E/SO practical for small motor-drive and embedded power-stage designs - fan drivers, pump controllers, and BLDC assist motors in industrial equipment. Firmware PI loops close speed or current at PWM frequency using the SMPS-grade analog blocks, and the 9KB FLASH leaves room for commutation tables and field-orientated control building blocks for simple drives. Using one DSC platform across both the power supply and the motor-control sections of a product reduces the software toolchain to a single XC16/MPLAB X environment. The extended temperature rating supports motor-adjacent mounting where ambient heat is unavoidable.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ09GS302T-E/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ09GS302-I/SO | DSPIC33FJ09GS302-E/SO | DSPIC33FJ06GS202A-E/SO | DSPIC33FJ06GS102A-I/SO |
|---|---|---|---|---|---|
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| FLASH Program Memory | 9KB (3K x 24) | 9KB (3K x 24) | 9KB (3K x 24) | 6KB | 6KB |
| Temperature Range | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) |
| Target Application Focus | Digital SMPS, PFC, UPS, automotive power | Digital SMPS, industrial | Digital SMPS, automotive | Cost-reduced digital power | Entry-level digital power |
Key Differentiators
- Automotive AEC-Q100 qualification with extended temperature range (vs DSPIC33FJ09GS302-I/SO)
- 9KB FLASH headroom for multi-loop firmware (vs DSPIC33FJ06GS202A-E/SO)
- GS-series digital-power peripheral specialization (vs DSPIC30F2010-30I/SO)
- Trade-off: single-source family, no cross-brand drop-in (vs DSPIC33FJ06GS102A-I/SO)
Design Notes
Distinguish the suffix codes before ordering: the T prefix denotes Tape & Reel (MOQ 1,600 units), E denotes the extended -40C to +125C automotive grade, and I denotes industrial -40C to +85C. Substituting the industrial grade into an AEC-Q100 automotive BOM invalidates the qualification chain, and buying Tape & Reel for prototypes wastes budget versus the tube-packaged DSPIC33FJ09GS302-E/SO. Always re-run firmware validation when moving between 9KB and 6KB FLASH family members, since linker memory maps change.
Per Microchip datasheet DS75018, the GS family requires attention to a minimal set of device pin connections before development: MCLR needs a pull-up to VDD for ICSP programming and proper reset behavior, and the PGC/PGD programming pins must be kept free of heavy capacitive loading for reliable in-circuit programming. Keep the analog ground of the ADC reference separated from the high-di/dt power-stage ground return and join them at a single point to preserve ADC accuracy in SMPS layouts.
In digital power designs, budget the CPU against loop timing: at 40 MIPS and a typical 100-250 kHz switching frequency, one instruction-cycle budget per PWM period is roughly 160-400 instructions per 16 MIPS-equivalent control iteration - tight enough that the GS-series dedicated analog/PWM hardware should handle cycle-by-cycle current limiting rather than firmware. Use the Microchip interleaved PFC reference design (350W, universal input) as a validated starting software framework rather than writing control loops from scratch.
Place a 0.1uF ceramic decoupling capacitor within 5 mm of each VDD pin pair plus a bulk 4.7uF-10uF capacitor per Microchip's standard dsPIC33F power recommendations. In SMPS layouts, route the PWM gate-drive traces away from the ADC input traces to prevent switching-edge coupling into current-sense channels; erroneous current-loop samples are the most common cause of instability in digitally controlled converters using this device class.
Compliance Information
AEC-Q100 automotive qualification confirmed via Microchip USA product data. RoHS/lead-free status per standard Microchip production for dsPIC33FJ 28-SOIC; obtain formal certificates of conformance from Microchip for shipment-specific declarations.
