DSPIC33FJ09GS302-E/MX - 16-bit 40 MIPS SMPS DSC | Microchip
料号： DSPIC33FJ09GS302-E/MX ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.18 | $41.80 |
| 100 | $3.74 | $374.00 |
| 500 | $3.35 | $1,675.00 |
| 1,000 | $2.98 | $2,980.00 |
DSPIC33FJ09GS302-E/MX 概述
A Digital Signal Controller combines the compute architecture of a microcontroller with DSP features such as hardware multiply-accumulate and dual operand fetch. DSCs sit within the broader power management hierarchy: microcontroller -> digital signal controller -> embedded processor, and the dsPIC33FJ GS family is purpose-built for digital power conversion, integrating high-speed PWM modules, analog comparators, and ADCs specifically architected for switch-mode power supply (SMPS) control loops.
Key features include 40 MIPS of 16-bit RISC DSP performance, 9KB of self-programmable FLASH, and the SMPS peripheral set: high-resolution PWM with dedicated time bases suitable for multi-loop and interleaved topologies, fast analog-to-digital conversion, and on-chip comparators that close control loops without external analog circuitry. The exposed-pad UQFN package improves thermal dissipation and ground integrity for power electronics layouts.
The GS-family architecture pairs the dsPIC33F 16-bit core with DSP instructions, enabling execution of PID and predictive control algorithms at cycle-accurate sampling rates. Peripherals are tightly coupled to the core through the DMA and interrupt fabric, so ADC sampling-to-PWM-update latency stays deterministic - a critical requirement in current-mode control where loop delay erodes phase margin.
Typical applications include AC-to-DC converters, DC-to-DC converters, Power Factor Correction (PFC) stages, and uninterruptible power supplies (UPS). Microchip's interleaved PFC reference design, rated up to 350W from a universal input, demonstrates the family in production-grade digital power hardware.
Design consideration: budget the 3.3V core supply sequencing and always decouple the exposed pad as the primary ground return; the MCLR/VPP pin also doubles as the high-voltage programming input, so never omit the external programming header.
This page synthesizes verified distributor listings, drop-in same-family alternatives, and practical design notes not consolidated in the manufacturer datasheet.
直接替换替代料： DSPIC33FJ09GS302-E/MX ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： DSPIC33FJ09GS302-E/MX （相同外形与封装尺寸） ——差异在于 Core Architecture, Package, Packaging, Mounting Type, Supply Voltage.
快速对比工具——选择替代料号进行并排对比：
DSPIC33FJ09GS302-I/MX
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33FJ06GS202AT-I/TL
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.85 / 个
查看数据手册 →DSPIC33FJ06GS102AT-E/TL
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.18 / 个
查看数据手册 →DSPIC33FJ06GS202A-I/SP
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
联系询价
查看数据手册 →DSPIC33FJ09GS302-E/MX 最大额定值与电气特性
| Core Architecture | 16-bit dsPIC33F RISC DSC |
| Maximum CPU Speed | 40 MIPS |
| Program Memory (FLASH) | 9 KB (3K x 24) |
| 电源电压 | 3.3 V |
| 封装 | 28-UQFN (6x6 mm) with Exposed Pad |
| Temperature Grade | E: -40C to +125C |
| Qualification | AEC-Q100 (Automotive) |
| Packaging | Tube |
| 安装类型 | Surface Mount |
| Application Target | Digital SMPS and power conversion |
DSPIC33FJ09GS302-E/MX 28-uqfn (6x6 mm) with exposed pad 引脚配置指南
DSPIC33FJ09GS302-E/MX（28-uqfn (6x6 mm) with exposed pad 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： DSPIC33FJ09GS302-E/MX.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33FJ09GS302-E/MX 适用于 6 应用s: AC-to-DC Converters, DC-to-DC Converters, Power Factor Correction (PFC), Uninterruptible Power Supplies (UPS), Automotive Power Modules, Embedded Digital Power Development.
AC-to-DC Converters
The DSPIC33FJ09GS302-E/MX is purpose-built for digitally controlled AC-to-DC conversion, where its GS-family high-speed PWM and fast ADC close voltage and current loops with deterministic latency. In a typical offline converter, the ADC samples the output voltage each switching cycle while the DSC executes PID compensation at 40 MIPS, updating the PWM duty cycle cycle-by-cycle. The 3.3V core and -40C to +125C E-grade rating suit enclosed industrial power supplies with wide ambient swings, and AEC-Q100 qualification extends use into automotive onboard chargers. Compared with analog control, digital control enables adaptive compensation and soft-start profiles programmed in the 9KB FLASH.
推荐
DC-to-DC Converters
For DC-to-DC conversion, the DSPIC33FJ09GS302-E/MX leverages its SMPS-oriented PWM with independent duty-cycle and dead-time control, making it effective for synchronous buck, boost, and push-pull topologies in intermediate bus and point-of-load applications. The 40 MIPS core runs current-mode control loops fast enough for switching frequencies in the hundreds of kilohertz, while on-chip comparators provide hardware cycle-by-cycle overcurrent protection independent of software latency. The 28-UQFN exposed-pad package grounds through the PCB for low-noise analog sampling. Digital implementation in the 9KB FLASH also supports soft-start, phase shedding, and telemetry over a serial interface.
推荐
Power Factor Correction (PFC)
The DSPIC33FJ09GS302-E/MX is directly supported by Microchip's interleaved PFC reference design, which uses this GS-family controller to produce a single high-voltage DC output up to 350W from a universal AC input. Interleaved PFC requires precisely phased PWM outputs - the GS302's high-speed PWM provides phase-shifted channels with cycle-accurate dead time, while the fast ADC samples input current for average-current-mode shaping so line current tracks voltage for low THD. Running at 40 MIPS, the core executes the multiplier and compensator each switching cycle. The E-grade -40C to +125C range withstands the elevated ambient near power stages in telecom rectifiers and automotive chargers.
推荐
Uninterruptible Power Supplies (UPS)
In UPS systems the DSPIC33FJ09GS302-E/MX controls the bidirectional battery charger, inverter bridge, and transfer logic from a single 3.3V controller. The GS-family's multi-channel high-speed PWM drives half-bridge and full-bridge inverter legs with programmable dead time, while the ADC and comparators implement fast overcurrent trips in hardware - essential because UPS faults propagate faster than software can react. Its 9KB FLASH stores state machines for line/battery/transfer modes plus diagnostics logging. The AEC-Q100 qualification and -40C to +125C E-grade let the same controller serve both enterprise UPS and automotive onboard power-reserve modules without redesign.
推荐
Automotive Power Modules
With AEC-Q100 qualification and the -40C to +125C E temperature grade, the DSPIC33FJ09GS302-E/MX is suited to automotive digital power modules such as DC-DC converters for infotainment, LED headlamp drivers, and 48V-to-12V belt-starter supplies. The 28-UQFN 6x6 mm exposed-pad package provides both the thermal path and compact footprint demanded by dense automotive ECUs. The high-speed PWM and comparators perform the safety-relevant current limiting in hardware, supporting ISO functional-safety arguments through deterministic protection behavior. Firmware in the 9KB FLASH can implement cold-crank profile compensation and diagnostic reporting over the controller's serial interfaces to the vehicle network.
推荐
Embedded Digital Power Development
The DSPIC33FJ09GS302-E/MX serves as an ideal learning and prototyping platform for embedded digital power engineers, because Microchip supports the GS-family with the Digital Power Explorer-style development hardware, MPLAB X IDE, and the XC16 compiler at no tooling cost beyond a low-cost programmer. The 28-UQFN device mates with standard SMPS adapter boards, letting students and NPI teams iterate PID compensation, dead-time tuning, and ADC trigger placement on real converters. With 40 MIPS headroom and SMPS-specialized peripherals, code ported from this controller scales directly to the larger GS202/GS302 family members, preserving firmware investment from bench to production designs.
推荐
推荐产品汇总
工程参考数据： DSPIC33FJ09GS302-E/MX ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | DSPIC33FJ09GS302-I/MX | DSPIC33FJ06GS202AT-I/TL | DSPIC33FJ06GS102AT-E/TL |
|---|---|---|---|---|
| Package | 28-UQFN (6x6 mm) EP | 28-UQFN (6x6 mm) EP - same | 28-UQFN (6x6 mm) - same footprint | 28-UQFN (6x6 mm) - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| FLASH Program Memory | 9 KB (3K x 24) | 9 KB (3K x 24) | 6 KB | 6 KB |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Temperature Range | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) |
| Application Focus | Digital SMPS / PFC / UPS | Digital SMPS / PFC / UPS | Digital SMPS / PFC | Digital SMPS / PFC |
关键差异点
- Extended automotive temperature range （对比 DSPIC33FJ09GS302-I/MX)
- Largest FLASH in the 28-pin GS drop-in group （对比 DSPIC33FJ06GS202AT-I/TL)
- Trade-off: lower memory ceiling than newer families （对比 DSPIC33EV64GM104-E/P8)
设计说明
The 28-UQFN exposed pad is the primary ground return and thermal path - connect it to a solid ground plane through an array of at least 4x4 vias. Isolate AVDD/AVSS analog rails with an RC filter (for example 10 ohm + 1 uF) from the digital 3.3V rail so ADC reference noise stays low. During layout, route the MCLR/VPP, PGD, and PGC programming traces to a 5-pin header; omitting it forces desoldering the QFN for reprogramming. Estimated: keep the exposed-pad solder coverage above 80% for rated thermal performance.
Sequencing and decoupling matter for the GS302: place a 0.1 uF ceramic capacitor at every VDD pin plus one bulk 4.7-10 uF capacitor near the package. Do not apply MCLR voltage above the absolute maximum rating during ICSP without the recommended resistor network on the programming line. Estimated: with a 3.3V rail and typical SMPS-active core current in the tens-of-mA class, regulator headroom of 50% above measured peak current is a safe sizing rule; measure peak with the PWM channels fully loaded.
Do not substitute cross-brand MCUs onto this footprint - the PWM and ADC pin mapping is Microchip-specific, and a cross-brand swap forces PCB respin and loop re-verification. When substituting with the smaller-memory DSPIC33FJ06GS202A/GS102A in the same package, first compile your firmware for the target and confirm FLASH utilization fits; SMPS code with diagnostics routinely exceeds 6KB. The E-grade part is rated -40C to +125C ambient, but estimate junction temperature: TJ = TA + PD x theta_JA with the package-specific theta_JA from the data sheet before finalizing automotive derating.
合规信息
AEC-Q100 automotive qualification and E temperature grade (-40C to +125C) confirmed via DigiKey/Datasheets.com/Hotenda listings. RoHS/REACH/lead-free certificates must be obtained from the distributor at order time; XAIPART marks them unknown pending certificate verification.
