DSPIC33EP128GS804-I/ML - 16-bit 70 MIPS DSC | Microchip
부품 번호: DSPIC33EP128GS804-I/ML ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $6.1 | $6.10 |
| 10 | $5.87 | $58.70 |
| 100 | $5.4 | $540.00 |
| 500 | $4.95 | $2,475.00 |
| 1,000 | $4.6 | $4,600.00 |
DSPIC33EP128GS804-I/ML 개요
A digital signal controller combines the compute characteristics of a microcontroller with the DSP engine of a digital signal processor. Within the power-management hierarchy, a DSC sits above a general-purpose MCU for control-loop tasks: it closes high-bandwidth feedback loops in switch-mode power supplies, executing Proportional-Integral-Derivative compensation at tens to hundreds of kilohertz, where a standard MCU would struggle to meet loop deadlines. The dsPIC33EP family from Microchip Technology is a widely deployed DSC platform for digital power.
Key features of this GS-series device include interconnected high-speed PWM peripherals for multi-phase and multi-loop converters, an analog front end with ADC supporting a programmable gain amplifier (PGA), on-chip comparators for fast overcurrent protection, dual-partition Flash enabling live firmware update, and Functional Safety (FuSa) support as listed by DigiKey.
Technically, the device executes the 16-bit dsPIC33EP instruction set with DSP multiply-accumulate instructions, supporting control math at up to 70 MIPS. The interconnected PWM, ADC, PGA, and comparator fabric allows analog events such as overcurrent trips to act on PWM outputs with minimal CPU intervention, which is essential for cycle-by-cycle current limiting in SMPS designs.
Typical applications include AC-DC power supplies, DC-DC converters, battery chargers, power factor correction (PFC) stages, and digitally controlled lighting or welding power stages, where deterministic high-speed control is required.
A key design consideration is that the 8 KB RAM constrains complex control structures; plan control-loop state buffers carefully, and verify CAN transceiver pairing early since CAN is integrated on-chip.
This page synthesizes distributor pricing, drop-in same-family alternatives, practical design notes, and FAQ content not found in the manufacturer datasheet alone, as of 2026-09-23.
드롭인 대체품: DSPIC33EP128GS804-I/ML — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: DSPIC33EP128GS804-I/ML (동일 폼 팩터 및 풋프린트) — 차이점: Package, CAN Interface, Core Architecture, Flash Partitioning, Operating Temperature.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
DSPIC33EP128GS804T-I/ML
✅ 드롭인✓ 재고 있음
$12.6 / 개
데이터시트 보기 →DSPIC33EP128GS804-E/ML
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
DSPIC33EP64GS804-I/ML
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$3.98 / 개
데이터시트 보기 →DSPIC33EP128GS704-I/ML
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
DSPIC33EP64GS704-I/ML
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
DSPIC33EP128GS804-I/ML 최대 정격 & 전기적 특성
| Core | dsPIC33EP, 16-bit |
| Max CPU Speed | 70 MIPS |
| Program Memory (Flash) | 128 KB (43K x 24), dual-partition with live update |
| RAM | 8 KB |
| CAN | Yes, integrated CAN module |
| Analog Features | High-speed ADC with PGA, comparators, interconnected with PWM |
| PWM | High-speed PWM for digital power conversion |
| 패키지 | 44-QFN (8x8 mm) |
| 실장 유형 | Surface Mount |
| 동작 온도 | -40C to +85C (I grade) |
| Qualification | AEC-Q100 listed (per distributor data) |
| Functional Safety | FuSa-supported device (per DigiKey listing) |
DSPIC33EP128GS804-I/ML 44-qfn (8x8 mm) 핀 구성 가이드
DSPIC33EP128GS804-I/ML(44-qfn (8x8 mm) 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: DSPIC33EP128GS804-I/ML.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
DSPIC33EP128GS804-I/ML 적합 용도: 6 애플리케이션s: AC-DC Power Supplies, Power Factor Correction (PFC), DC-DC Converters and Battery Chargers, Industrial Motor Control, Solar and Renewable Energy Converters, Digital Lighting and Welding Power.
AC-DC Power Supplies
The DSPIC33EP128GS804-I/ML directly targets digitally controlled AC-DC power supplies, an application Microchip explicitly lists for the GS70X/80X family. Its interconnected high-speed PWM and high-speed ADC with PGA close voltage and current loops at switching frequencies common in LLC and flyback converters, while on-chip comparators provide cycle-by-cycle overcurrent protection without CPU latency. The dual-partition Flash with live update allows firmware updates in the field without halting the converter. Placed as the sole supervisory controller, it replaces analog control ICs and adds programmability for startup sequencing, burst mode, and fault logging; the trade-off is firmware development effort versus fixed-function analog controllers.
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Power Factor Correction (PFC)
Power factor correction stages benefit from the DSPIC33EP128GS804-I/ML's DSP multiply-accumulate throughput at 70 MIPS, which supports average-current-mode PFC control executed every switching cycle. The ADC samples input voltage, inductor current, and bus voltage synchronously with the PWM carrier, and the interconnected architecture routes results into duty-cycle updates with minimal software jitter. Integrated comparators protect against inrush and overcurrent events in hardware. The 44-QFN (8x8 mm) footprint keeps the controller close to the gate-driver circuitry for short control loops, and the -40C to +85C industrial grade suits server and telecom front ends operating in warm environments.
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DC-DC Converters and Battery Chargers
For DC-DC converters and multi-chemistry battery chargers, the DSPIC33EP128GS804-I/ML provides the deterministic control core needed for constant-current/constant-voltage profiling, coulomb-style supervision, and protection state machines. Its 8 KB RAM accommodates charging state machines and filter histories, while the CAN interface links the charger to a vehicle or battery-management controller on the same bus. Dual-partition Flash enables charging-profile firmware updates after deployment. In synchronous buck or boost topologies, the high-speed PWM supports complementary outputs with dead-time control, and comparator-based overcurrent trips act within the switching period, a hard requirement for reliable charger fault response.
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Industrial Motor Control
Although optimized for digital power, the 70 MIPS DSP engine, complementary PWM with dead-time insertion, and fast ADC of the DSPIC33EP128GS804-I/ML suit small motor drives such as BLDC and PMSM control in industrial equipment. Field-oriented control requires trigonometric math each loop iteration, which the DSP multiply-accumulate instructions execute efficiently. The -40C to +85C grade covers factory floor conditions, and CAN integrates the drive into industrial networks without an external controller. The 44-QFN (8x8 mm) package supports compact gate-drive placement. For designs needing more advanced PWM modules, Microchip's dsPIC33CK family offers a newer alternative, but this EP-family part remains supported and code-portable.
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Solar and Renewable Energy Converters
Solar micro-inverters, optimizers, and MPPT converters use the DSPIC33EP128GS804-I/ML to run maximum-power-point-tracking algorithms on top of fast inner current loops. The dual-partition Flash with live update is particularly valuable in fielded solar hardware, allowing algorithm updates without service intervention. Synchronized ADC sampling of panel voltage and current enables accurate MPPT calculations, while comparators guard against input overvoltage transients. The industrial temperature grade and AEC-Q100 listing per distributor data support harsh rooftop and outdoor enclosure environments. Firmware complexity is the main constraint given 8 KB RAM, so keep tracking algorithms lean and reserve the remaining margin for fault handling.
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Digital Lighting and Welding Power
Digitally controlled HID/LED drivers and inverter welding power stages demand cycle-by-cycle current control and fast fault shutdown, both handled by the DSPIC33EP128GS804-I/ML's interconnected PWM-comparator fabric. The high-speed PWM supports the variable-frequency, variable-duty patterns used in resonant lighting ballasts and welding converters, while 70 MIPS executes adaptive control algorithms. Field-updatable firmware lets manufacturers tune arc or dimming characteristics after installation. The 44-QFN (8x8 mm) surface-mount package with the -40C to +85C industrial range suits enclosed power hardware. Designers should budget PCB copper around the QFN thermal pad given continuous high-side switching activity in these applications.
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추천 제품 요약
엔지니어링 참조 데이터: DSPIC33EP128GS804-I/ML — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | DSPIC33EP128GS804T-I/ML | DSPIC33EP128GS804-E/ML | DSPIC33EP64GS804-I/ML | DSPIC33EP128GS704-I/ML |
|---|---|---|---|---|---|
| Package | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Memory | 128 KB (43K x 24) | 128 KB | 128 KB | 64 KB (-50%) | 128 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| PWM / Analog Feature Set | Full GS80X high-speed PWM + ADC PGA + comparators | Identical to this product | Identical to this product | Same peripheral set, less Flash | Reduced PWM/analog interconnect (GS70X) |
주요 차별점
- Full GS80X digital-power analog interconnect (vs DSPIC33EP128GS704-I/ML)
- Double the program memory at same footprint (vs DSPIC33EP64GS804-I/ML)
- Extended temperature option without redesign (vs DSPIC33EP128GS804-E/ML)
설계 노트
Provide a clean, well-decoupled 3.3 V supply for the DSPIC33EP128GS804-I/ML: place 100 nF ceramic capacitors at each VDD/VSS pair of the 44-QFN plus one bulk 4.7-10 uF capacitor near the package. Because the on-chip digital-power peripherals switch synchronously with the power converter under control, ground bounce from the controller can couple into ADC readings; use a solid ground plane and separate the analog reference ground return. Estimated: a DSC running at 70 MIPS typically draws tens of milliamps, well within any 3.3 V regulator budget, but confirm exact current in the datasheet electrical characteristics chapter.
The 44-QFN (8x8 mm) package requires the exposed thermal pad to be soldered to a grounded copper pour with an array of thermal vias - this pad is often a primary ground return, not merely thermal. Follow Microchip QFN layout guidelines: via-in-pad or dog-bone fanout with 4-6 mil traces, and solder-paste segmentation on the pad to avoid voiding. Verify pin 1 marker orientation against the datasheet pin diagram before release; dsPIC33EP GS devices also use Peripheral Pin Select, so lock critical PWM/ADC pins in firmware and confirm the PPS mapping against the fixed-pin table.
Three common mistakes with the GS804: (1) assuming the full 128 KB Flash is one block - in dual-partition live-update mode each partition is roughly half, and the unpartitioned single-block mode must be explicitly configured (program memory 0x000000-0x015800 per third-party documentation); (2) overlooking the 8 KB RAM ceiling when adding control-loop history buffers and CAN frames, which causes runtime stack overflows; (3) substituting the -I and -E temperature grades interchangeably without rechecking the worst-case enclosure temperature for the +125C extended part. Always re-verify code size before dropping from 128 KB (GS804) to 64 KB (64GS804) variants.
규정 준수 정보
Distributor data (GlobalSpec) lists the device against AEC-Q100. RoHS/REACH/lead-free status not stated in provided data - confirm on Microchip's official product page.