DSPIC33FJ09GS302-I/SP - 16-bit DSC 40MIPS SMPS DSC | Microchip
MPN: DSPIC33FJ09GS302-I/SP ✓ Hoạt độngDSPIC33FJ09GS302-I/SP Tóm tắt
A digital signal controller combines the computational power of a DSP engine with the control peripherals and ease of use of a microcontroller, sitting between an MCU and a dedicated DSP in the embedded control hierarchy. DSCs are the preferred choice for closed-loop power conversion, where fast control loops and specialized PWM hardware must coexist with general-purpose firmware.
Key features of the GS302 include high-speed PWM modules purpose-built for switch-mode power supplies, an on-chip ADC for current and voltage sensing, integrated analog comparators, and DSP engine instructions including a barrel shifter and multiple internal bus architectures, as described by Microchip USA. The 24-bit wide flash program memory and boundary-scan support simplify development and production programming.
Technically, the dsPIC33FJ09GS302 belongs to Microchip's SMPS-focused dsPIC33FJ GS family. Its architecture couples a 16-bit RISC core running at up to 40 MIPS with dedicated power-conversion peripherals, so control loops for voltage-mode or current-mode regulation can execute deterministically at switching frequencies common in AC/DC converters and PFC stages.
Typical applications include AC to DC converters, DC to DC converters, Power Factor Correction (PFC), and uninterruptible power supplies (UPS), alongside battery chargers, LED drivers, and digital lighting ballasts, where multi-loop SMPS control is the core requirement.
A key design consideration: the 3.0 V to 3.6 V supply window means the controller is powered by a regulated 3.3 V rail; place local decoupling close to both VDD pins and route sensitive analog inputs away from PWM switching nodes to protect ADC accuracy.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho DSPIC33FJ09GS302-I/SP — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với DSPIC33FJ09GS302-I/SP (cùng hình factor và footprint) — khác nhau ở Operating Temperature, Package, Mounting Type, Core Architecture, Series.
DSPIC33FJ06GS202-I/SP
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ06GS202A-E/SP
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ09GS302-I/SP Tỷ lệ tối đa & tính chất điện
| Core Architecture | 16-bit dsPIC RISC with DSP engine |
| Tần số xung maksimum | 40 MHz (40 MIPS operation) |
| Program Memory (Flash) | 9 KB (24-bit wide instruction words) |
| Data RAM | 1024 Bytes |
| Supply Voltage Range | 3 V to 3.6 V |
| Nhiệt độ hoạt động | -40C to +85C (industrial) |
| Hộp | 28-pin SPDIP |
| Kiểu lắp đặt | Through Hole |
| Peripheral Specialization | High-Speed PWM, ADC, Comparators (SMPS family) |
| Target Applications | SMPS, AC/DC, DC/DC, PFC, UPS |
| DSP Features | Barrel shifter, multiple internal buses, boundary scan |
| Process Technology | CMOS |
| Product Family | dsPIC33FJ06GS/GS302 Digital Signal Controllers |
| Packaging | Tube |
| Estimated Unit Price | Approx. 3.66 USD (LCSC, as of 2026-09-26) |
Hướng dẫn cấu hình chân DSPIC33FJ09GS302-I/SP 28-pin spdip
Cấu hình chân cho DSPIC33FJ09GS302-I/SP (28-pin spdip gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho DSPIC33FJ09GS302-I/SP.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
DSPIC33FJ09GS302-I/SP phù hợp cho 6 Áp dụngs: AC to DC Converter Control, DC to DC Converter, Power Factor Correction (PFC), Uninterruptible Power Supply (UPS), Digital Lighting and LED Drivers, Battery Chargers and Power Monitoring.
AC to DC Converter Control
The DSPIC33FJ09GS302-I/SP directly implements digital control of offline AC/DC converters, where its high-speed PWM module generates the primary switching waveform and the on-chip ADC samples output voltage and input current in a synchronized fashion. Running at up to 40 MIPS from 9 KB flash, the DSC closes voltage- and current-mode loops deterministically at switching frequencies typical of flyback and forward topologies. Using the DSC replaces analog compensation networks with firmware, enabling programmable regulation, soft-start, and fault handling. A 3.3 V auxiliary rail powers the controller, and comparator peripherals provide cycle-by-cycle overcurrent protection without CPU intervention.
Được đề xuất
DC to DC Converter
For isolated and non-isolated DC/DC stages such as buck, boost, and half-bridge converters, the GS302 pairs its high-speed PWM outputs with the ADC to build fast inner current loops. The 40 MIPS DSP core executes compensator math (PI or PID with fixed-point arithmetic) within the PWM period, achieving bandwidths that analog implementations approximate but digital designs make reconfigurable. Its 3.0 V to 3.6 V operation keeps the controller isolated from the power stage while comparators flag faults immediately. The 28-pin SPDIP package suits prototyping and low-volume industrial converters where through-hole assembly and field firmware updates are practical.
Được đề xuất
Power Factor Correction (PFC)
Microchip explicitly targets PFC with the dsPIC33FJ09GS302 family and offers an Interleaved PFC reference design that accepts universal AC input and delivers a single high-voltage DC output up to 350 W. The GS302 implements average-current-mode PFC by synchronizing ADC sampling of the input sinusoid with PWM triggers, computing the current command, and driving the boost switch through high-speed PWM with dead-time control. Its 40 MIPS core leaves margin for feedforward harmonic correction and brownout protection. Integrated comparators enable instant overcurrent shutdown, meeting safety expectations for PFC front ends.
Được đề xuất
Uninterruptible Power Supply (UPS)
UPS products require coordinated control of an AC/DC charger stage, a DC/AC inverter, and fast transfer logic - exactly the multi-loop scenario Microchip lists for the GS302 family. The DSC's DSP engine and 40 MIPS throughput allow simultaneous management of the inverter sinusoidal PWM output and the battery charge profile, while the ADC streams phase currents and battery voltage. On-chip comparators provide hardware overcurrent trips that react faster than any software loop. The 9 KB flash accommodates state machines for line mode, battery mode, and bypass transfer with protective sequencing in a single 28-pin device.
Được đề xuất
Digital Lighting and LED Drivers
High-brightness LED drivers and lighting ballasts benefit from the GS302's ability to combine constant-current regulation, dimming control, and fault protection in firmware. The high-speed PWM resolution supports precise current shaping to minimize flicker, while the ADC monitors LED string voltage and thermistor inputs for derating logic. With 40 MIPS of headroom, the controller can simultaneously manage power factor for offline luminaires and communicate with dimming interfaces. The industrial -40C to +85C rating suits enclosed fixtures, and the SPDIP package simplifies evaluation and small-batch production of lighting prototypes.
Được đề xuất
Battery Chargers and Power Monitoring
Smart battery chargers need charge-profile state machines (CC/CV, taper, termination), current-loop control, and protection - all well matched to the GS302's SMPS peripheral set. The high-speed PWM drives the charger power stage while the ADC tracks pack voltage and current; comparator inputs handle hardware overcurrent and reverse-polarity faults. At 40 MIPS, the firmware executes both the fast control loop and supervisory tasks such as temperature-based derating and fault logging within the 9 KB flash budget. The 3.3 V supply and industrial temperature range integrate cleanly into charger products derived from mains-powered front ends.
Được đề xuất
Dữ liệu tham khảo kỹ thuật cho DSPIC33FJ09GS302-I/SP — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | DSPIC33FJ06GS202-I/SP | DSPIC33FJ06GS202A-E/SP |
|---|---|---|---|
| Package | 28-pin SPDIP | 28-pin SPDIP - same | 28-pin SPDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | 16-bit dsPIC DSC, 40 MIPS | 16-bit dsPIC DSC, 40 MIPS | 16-bit dsPIC DSC, 40 MIPS |
| Flash Memory | 9 KB | 6 KB | 6 KB |
| Data RAM | 1 KB | 1 KB | 1 KB |
| Supply Voltage | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
| Temperature Range | -40C to +85C (I) | -40C to +85C (I) | Extended (E variant) |
| SMPS Peripherals | High-Speed PWM, ADC, Comparators | High-Speed PWM, ADC, Comparators - same | High-Speed PWM, ADC, Comparators - same |
Bảo phân biệt quan trọng
- Largest program memory in the 28-pin SPDIP GS sub-family (vsDSPIC33FJ06GS202-I/SP)
- Purpose-built SMPS peripheral set (vsDSPIC33FJ06GS202A-E/SP)
- Through-hole SPDIP package simplifies prototyping (vsDSPIC33FJ09GS302-I/MM)
Ghi chú thiết kế
Power the DSPIC33FJ09GS302-I/SP from a clean regulated 3.3 V rail within its 3.0 V to 3.6 V window; exceeding the maximum rating will damage the device. In SMPS products, derive this rail from an auxiliary winding through a small LDO or shunt regulator, and sequence it before the power stage if the controller must supervise startup. Decouple each VDD pin with a 0.1 uF ceramic placed within a few millimeters of the pin, plus one bulk 4.7-10 uF capacitor near the controller for charge reservoir behavior during PWM switching events.
Keep the analog domain separate from the switching domain: route ADC inputs (current-shunt and output-voltage sense lines) away from PWM traces and gate-driver loops, and use a single-point star ground connecting the controller ground to power-stage ground at the shunt resistor. On the 28-pin SPDIP through-hole footprint, short ground stubs are hard to achieve, so prioritize a solid ground plane on the opposite PCB layer with via stitching near the controller. This preserves ADC accuracy for closed-loop regulation and reduces PWM-coupled jitter.
Three frequent issues with this family: (1) firmware written for 9 KB flash will not fit the 6 KB GS202 siblings - budget code size before choosing an alternative; (2) consult the family silicon errata (DS-80540B) because some early GS-family silicon behaviors deviate from the main datasheet; (3) verify MCLR programming configuration, as incorrect MCLR/PGD/PGC pin configuration is the most common cause of in-circuit programming failures on the SPDIP package during development.
Thông tin tuân thủ
Compliance status was not stated in the provided web data; verify RoHS/REACH status on the official Microchip product page before design-in.
