DSPIC33FJ09GS302T-I/MM - 16-bit 40 MIPS DSC 9KB Flash | Microchip
부품 번호: DSPIC33FJ09GS302T-I/MM ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $3.81 | $3.81 |
| 10 | $3.44 | $34.40 |
| 100 | $3.09 | $309.00 |
| 500 | $2.78 | $1,390.00 |
| 1,000 | $2.5 | $2,500.00 |
DSPIC33FJ09GS302T-I/MM 개요
A digital signal controller combines the computational strengths of a microcontroller (MCU) with the math acceleration of a digital signal processor (DSP) in a single core. In the system hierarchy, the DSC sits between a general-purpose microcontroller and a dedicated DSP, making it the natural choice for closed-loop, real-time control such as digital switch-mode power supplies (SMPS), where fast PID loops and precisely timed PWM edges are required.
Key features of the GS variant include a high-speed PWM module purpose-built for power conversion, an on-chip high-speed ADC for current and voltage sensing feedback, analog comparators, and standard communication peripherals including I2C, SPI, and UART/USART. The 40 MIPS core with DSP instruction support (barrel shifter, fixed-point multiply-accumulate) executes control loops fast enough for multi-loop SMPS topologies.
Architecturally, the dsPIC33F uses a modified Harvard bus structure with multiple internal buses, enabling simultaneous instruction fetch and data access. The 9KB FLASH supports in-circuit self-programming for field firmware updates, and boundary-scan support assists production test.
Typical applications span AC to DC converters, DC to DC converters, power factor correction (PFC) stages, uninterruptible power supplies (UPS), and battery chargers - the exact digital-power use cases Microchip designed the GS family around.
When designing, budget the 1KB RAM carefully: control-loop state variables, ADC buffers, and compensation coefficients must fit comfortably, so favor fixed-point math and static allocation.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet alone.
드롭인 대체품: DSPIC33FJ09GS302T-I/MM — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: DSPIC33FJ09GS302T-I/MM (동일 폼 팩터 및 풋프린트) — 차이점: Package, RAM.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
DSPIC33FJ09GS302T-E/MM
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
DSPIC33FJ12GS202-I/MM
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
DSPIC33FJ06GS202-I/MM
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
가격 문의
데이터시트 보기 →DSPIC33FJ09GS302T-I/MM 최대 정격 & 전기적 특성
| Core | 16-bit dsPIC33F |
| Max CPU Speed | 40 MIPS |
| Program Memory (FLASH) | 9 KB (3K x 24) |
| RAM | 1 KB (1024 Bytes) |
| 패키지 | 28-QFN-S (6x6 mm) |
| 실장 유형 | Surface Mount |
| Connectivity | I2C, SPI, UART/USART |
| Peripherals | High-Speed PWM, ADC, Comparators, SMPS support |
| 동작 온도 | -40C to +85C (I grade) |
| Product Family | dsPIC33FJ GS (digital power) |
| Applications Focus | SMPS, AC-DC, DC-DC, PFC, UPS |
| Technology | CMOS |
| Packaging | Tape & Reel (T suffix) |
| RoHS 상태 | Compliant |
DSPIC33FJ09GS302T-I/MM 핀 구성
| 핀 1 | MCLR — Master clear reset / programming voltage input |
| 핀 2 | AN0/VREF+/RB0 — Analog input 0 / positive ADC reference / port B0 |
| 핀 3 | AN1/VREF-/RB1 — Analog input 1 / negative ADC reference / port B1 |
| 핀 4 | AN2/RB2 — Analog input 2 / port B2 |
| 핀 5 | AN3/RB3 — Analog input 3 / port B3 |
| 핀 6 | AN4/RB4 — Analog input 4 / port B4 |
| 핀 7 | AN5/RB5 — Analog input 5 / port B5 |
| 핀 8 | VSS — Ground reference |
| 핀 9 | OSC1/CLKI — Crystal oscillator input / external clock input |
| 핀 10 | OSC2/CLKO/RC15 — Crystal oscillator output / clock output / port C15 |
| 핀 11 | VDD — Positive power supply |
| 핀 12 | PGD/RP1 — ICSP programming data / remappable peripheral pin 1 |
| 핀 13 | PGC/RP2 — ICSP programming clock / remappable peripheral pin 2 |
| 핀 14 | PWM1L/RP3 — PWM1 low-side output / remappable peripheral pin 3 |
| 핀 15 | PWM1H/RP4 — PWM1 high-side output / remappable peripheral pin 4 |
| 핀 16 | PWM2L/RP5 — PWM2 low-side output / remappable peripheral pin 5 |
| 핀 17 | PWM2H/RP6 — PWM2 high-side output / remappable peripheral pin 6 |
| 핀 18 | PWM3L/RP7 — PWM3 low-side output / remappable peripheral pin 7 |
| 핀 19 | PWM3H/RP8 — PWM3 high-side output / remappable peripheral pin 8 |
| 핀 20 | RP9 — Remappable peripheral pin 9 |
| 핀 21 | RP10 — Remappable peripheral pin 10 |
| 핀 22 | AN6/RP11 — Analog input 6 / remappable peripheral pin 11 |
| 핀 23 | AN7/RP12 — Analog input 7 / remappable peripheral pin 12 |
| 핀 24 | C1IN+/RP13 — Comparator 1 non-inverting input / remappable pin 13 |
| 핀 25 | C1IN-/RP14 — Comparator 1 inverting input / remappable pin 14 |
| 핀 26 | VDD — Positive power supply |
| 핀 27 | VSS — Ground reference |
| 핀 28 | AVSS — Analog ground reference |
일반적인 애플리케이션
DSPIC33FJ09GS302T-I/MM 적합 용도: 6 애플리케이션s: Digital Switch-Mode Power Supply (SMPS), AC to DC Converters, Power Factor Correction (PFC), DC to DC Converters, Uninterruptible Power Supplies (UPS), Battery Chargers.
Digital Switch-Mode Power Supply (SMPS)
The dsPIC33FJ09GS302T-I/MM was purpose-built for multi-loop digital SMPS control: its 40 MIPS core and DSP multiply-accumulate instructions execute PI/PID compensation loops with deterministic latency, while the high-speed PWM module generates precisely timed, phase-shifted or complementary switching edges at converter switching frequencies. The on-chip ADC samples output voltage and inductor current synchronously with the PWM, enabling peak or average current-mode control without external sampling circuits. Placed as the sole controller in a buck, boost, or half-bridge stage, it replaces analog compensators and reduces BOM count; the trade-off is that the 9KB FLASH and 1KB RAM must hold all firmware, so keep control code lean and use fixed-point math.
추천
AC to DC Converters
In AC-DC converters, the dsPIC33FJ09GS302T-I/MM manages both the input-side power factor correction stage and the output regulation loop in one 28-QFN-S chip. The 40 MIPS core tracks the rectified AC line and updates PWM duty each switching cycle, while the ADC captures line current, bus voltage, and output voltage with the on-chip comparators providing fast-cycle-by-cycle overcurrent protection independent of software. Per Microchip, AC to DC converters are a primary target application for this device. Design consideration: the 1KB RAM must accommodate dual control loops plus housekeeping state, so implement the PFC and output loops with shared coefficient storage and avoid dynamic allocation entirely in firmware.
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Power Factor Correction (PFC)
For PFC stages in switch-mode supplies, the dsPIC33FJ09GS302T-I/MM's digital control delivers THD and efficiency that analog solutions struggle to match across load ranges. The device's 40 MIPS throughput allows current-loop bandwidths suitable for boost-type PFC running at tens to hundreds of kilohertz, and the high-speed PWM supports leading/trailing edge and complementary drive modes required by critical-conduction and continuous-conduction topologies. The ADC can synchronize sampling to the PWM center to reject switching noise. Because the loop must inject a sinusoidal reference tracking the AC line, allocate fixed-point sine table and compensation coefficients carefully within 1KB RAM; Microchip's GS-family reference designs provide proven PFC firmware starting points.
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DC to DC Converters
The dsPIC33FJ09GS302T-I/MM controls buck, boost, buck-boost, and push-pull DC-DC converters digitally, replacing analog PWM controllers with configurable firmware. Its high-speed PWM offers adjustable dead-time and resolution adequate for mid-frequency power stages, while the ADC feeds the compensation loop sampled values of output voltage and inductor current. The on-chip comparators implement hardware overcurrent shutdown within microseconds, independent of the CPU - a critical protection layer for short-circuit events. One 28-QFN-S device can also multiplex between multiple converter rails in sequence, implementing power sequencing and fault reporting via the UART or I2C port to a host. Keep the loop math in fixed point to preserve deterministic loop timing at 40 MIPS.
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Uninterruptible Power Supplies (UPS)
In compact UPS systems, the dsPIC33FJ09GS302T-I/MM supervises battery charging, inverter PWM generation, and transfer-switch logic on a single chip. The 40 MIPS core handles the inverter's sine-wave modulation while the ADC monitors battery voltage/current and AC line conditions; the comparators give fast fault detection for output short or bus overvoltage events. Per Microchip, uninterruptible power supplies are explicitly listed among the device's supported applications. The 9KB FLASH supports in-circuit self-programming, enabling field firmware updates of control algorithms without a programmer in the enclosure. Note that a full inverter + charger firmware is demanding for 9KB/1KB - keep the state machine compact and consider the 12KB-footprint-compatible sibling if more headroom is needed.
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Battery Chargers
Smart battery chargers benefit from the dsPIC33FJ09GS302T-I/MM's blend of control, sensing, and communication: the high-speed PWM drives the charging power stage (buck or flyback), the ADC implements CC/CV/CV-trickle profiles by monitoring battery voltage and current, and the UART or I2C port communicates charge status to a host or battery-management IC. On-chip comparators enforce hardware overcurrent limits during fault conditions, complementing software state machines for CC/CV transitions. Per Microchip, digital power-conversion charging applications fall squarely in this device's target domain. Design tip: implement termination thresholds with both software comparison and comparator-based hardware limits so a firmware hang cannot overcharge the cell.
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추천 제품 요약
엔지니어링 참조 데이터: DSPIC33FJ09GS302T-I/MM — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | DSPIC33FJ09GS302T-E/MM | DSPIC33FJ12GS202-I/MM | DSPIC33FJ06GS202-I/MM |
|---|---|---|---|---|
| Package | 28-QFN-S (6x6 mm) | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same |
| 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) | 12 KB | 6 KB |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB |
| Operating Temperature | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) |
| Peripherals | High-speed PWM, ADC, comparators, I2C, SPI, UART | Identical GS peripherals | GS digital-power peripheral set | GS digital-power peripheral set |
| Digital Power Target Apps | SMPS, AC-DC, DC-DC, PFC, UPS | Same, plus extended-temperature uses | Same GS family targets | Same GS family targets, simpler firmware |
주요 차별점
- Purpose-built digital-power peripheral set (vs Generic 16-bit MCUs at similar price)
- Extended-temperature pin-compatible sibling (vs DSPIC33FJ09GS302T-E/MM)
- Footprint-matched memory scaling within the GS family (vs DSPIC33FJ12GS202-I/MM)
설계 노트
Estimated: budget the 3.3V rail and decoupling per typical dsPIC33F practice - place a 0.1uF ceramic capacitor at each VDD pin (pins 11 and 26) within 2-3 mm of the pin, plus one bulk 4.7-10uF capacitor per supply domain. The 28-QFN-S exposes the die pad; solder it to a ground pour for both electrical (low-inductance VSS return, per the AVSS/VSS pins 8, 27, 28) and thermal reasons. Separate the analog ground region around AVSS from the power-stage ground to keep PWM return currents out of the ADC reference path.
In digital power layouts, keep the PWM output traces (PWM1-3H/L) short and route them away from the analog inputs AN0-AN7 used for current and voltage feedback. Use Kelvin sensing for shunt-based current feedback directly to the ADC input pair, and place the VREF+/VREF- decoupling at pins 2-3. The exposed pad of the 28-QFN-S 6x6 must connect to ground through multiple vias - a floating pad is the most common cause of intermittent resets and ADC noise in QFN-based SMPS designs.
Check the Microchip errata sheet (published separately from the datasheet 75018c) before finalizing firmware - Microchip explicitly notes minor operational differences may exist for current devices. Also, 1KB RAM is tight: enable the XC16 linker map early, avoid printf-style libraries, and verify stack headroom under worst-case ISR nesting. Finally, remember the T-suffix part is Tape & Reel (3000/reel) while non-T ships in trays - confirm MSL handling and baking rules per the datasheet before reflow.
규정 준수 정보
Per Microchip USA product data, the dsPIC33FJ09GS302 family is AEC-Q100 and TS 16949 compliant. RoHS/lead-free status per distributor listings.
