DSPIC33EP128GS704-E/ML - 70 MIPS 16-bit DSC 128KB Flash | Microchip
부품 번호: DSPIC33EP128GS704-E/ML ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $6.12 | $6.12 |
| 10 | $5.55 | $55.50 |
| 100 | $4.86 | $486.00 |
| 500 | $4.42 | $2,210.00 |
| 1,000 | $4.05 | $4,050.00 |
DSPIC33EP128GS704-E/ML 개요
A digital signal controller combines the computational throughput of a digital signal processor (DSP) with the peripheral integration and control orientation of a microcontroller (MCU). Within the power-management hierarchy, the dsPIC33EP GS family sits in the embedded-controller layer of digital power conversion systems, closing high-bandwidth control loops for switch-mode power supplies (SMPS) that previously required analog controllers or multi-chip DSP solutions.
Key differentiating features of the GS-series include dual-partition flash supporting live-update firmware switching, high-resolution PWM peripherals purpose-built for power conversion, and high-speed 12-bit ADCs for multi-loop feedback sampling. The extended-temperature (E) suffix qualifies the part for -40C to +125C operation, important for automotive-adjacent and industrial power electronics mounted near heat sources.
Architecturally, the dsPIC33EP core executes DSP multiply-accumulate instructions alongside C-efficient control code, allowing a single device to run proportional-integral (PI) current loops, protection routines, and communication stacks concurrently. According to Microchip, the dsPIC33EPXXGS70X/80X family explicitly targets digital switch-mode power supply and digital power-conversion applications.
Typical applications include AC-to-DC converter control, interleaved power factor correction (PFC) - Microchip provides a 350 W interleaved PFC reference design for this family - DC-to-DC converters, and digital lighting or battery-charging power stages.
When designing with this device, budget the 3.3V supply rail and validate PWM dead-time insertion against your power-stage switch timing; the dual-partition flash mechanism requires linker and boot-loader configuration to be planned early in the project.
This page synthesizes distributor pricing and stock signals, family drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet.
드롭인 대체품: DSPIC33EP128GS704-E/ML — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
DSPIC33EP128GS704-I/ML
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
DSPIC33EP256GS704-E/ML
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
DSPIC33EP128GS704T-I/ML
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
DSPIC33EP64GS704-E/ML
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
DSPIC33EP32GS704-E/ML
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
DSPIC33EP128GS704-E/ML 최대 정격 & 전기적 특성
| Core Architecture | 16-bit dsPIC33EP DSC (DSP + MCU) |
| Maximum CPU Speed | 70 MIPS |
| Flash Memory | 128 KB |
| Flash Feature | Dual Partition Flash (live update) |
| RAM | 8 KB |
| 공급 전압 | 3.3 V |
| 패키지 | 44-QFN (8x8 mm), exposed pad |
| 실장 유형 | Surface Mount |
| 동작 온도 | -40C to +125C (E grade) |
| Family Positioning | SMPS and Digital Power Conversion DSC |
| Target Applications | AC-DC converters, PFC, digital SMPS |
| Status | In Production |
DSPIC33EP128GS704-E/ML 44-qfn (8x8 mm), exposed pad 핀 구성 가이드
DSPIC33EP128GS704-E/ML(44-qfn (8x8 mm), exposed pad 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: DSPIC33EP128GS704-E/ML.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
DSPIC33EP128GS704-E/ML 적합 용도: 6 애플리케이션s: AC-DC Converter Digital Control, Interleaved Power Factor Correction (PFC), DC-DC Converter and Point-of-Load Control, Digital Lighting and LED Driver Control, Battery Chargers and Power Monitoring, Industrial Motor Control Auxiliaries and Power Subsystems.
AC-DC Converter Digital Control
The DSPIC33EP128GS704-E/ML is a natural fit for digitally controlled AC-DC converters, where the 70 MIPS dsPIC33EP core closes voltage and current loops at switching frequencies typical of flyback and LLC topologies. Microchip explicitly targets the GS70X family at AC-to-DC converter applications within its digital power portfolio. The high-resolution PWM peripherals generate precisely timed gate drive signals, while on-chip high-speed ADC channels sample the output voltage and inductor current every switching cycle for proportional-integral control. The dual-partition flash allows firmware updates in the field without a service visit, valuable in deployed power infrastructure. The 44-pin QFN with exposed pad dissipates controller heat into the PCB, and the extended -40C to +125C rating tolerates placement near hot primary-side components in enclosed supplies.
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Interleaved Power Factor Correction (PFC)
Microchip provides a dedicated interleaved PFC reference design for the SMPS dsPIC DSC family that operates from universal input voltage and produces a single high-voltage DC output up to 350 W of power - a proven starting point built around this controller class. Interleaved PFC demands precise phase-shifted PWM channels and fast current-loop computation, both of which the DSPIC33EP128GS704-E/ML delivers with its 70 MIPS core and DSP multiply-accumulate instructions executing the control law. The extended -40C to +125C temperature grade suits PFC stages mounted near the bridge rectifier and boost switch, where local heating is significant. Using dual-partition flash, manufacturers can update power-factor correction firmware to meet evolving harmonic-emission regulations without hardware changes. Sampling the input current each cycle enables average-current-mode control with input-voltage feedforward.
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DC-DC Converter and Point-of-Load Control
For digitally controlled DC-DC converters, the DSPIC33EP128GS704-E/ML provides the loop bandwidth and peripheral timing precision needed for buck, boost, and buck-boost stages. The 70 MIPS core executes current-mode control loops with cycle-by-cycle current limiting implemented in hardware via PWM comparators, ensuring fast fault response independent of software latency. Multi-channel PWM with programmable dead-time insertion safely drives synchronous rectifiers, while the ADC samples output voltage and current for telemetry and adaptive tuning. The 3.3 V supply integrates cleanly with logic-level power stages and gate drivers. The 44-QFN (8x8 mm) footprint fits compact power bricks, and the -40C to +125C extended rating supports outdoor telecom rectifiers and automotive-adjacent auxiliary converters experiencing wide thermal swings.
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Digital Lighting and LED Driver Control
The DSPIC33EP128GS704-E/ML suits digitally controlled LED drivers, including constant-current dimmable drivers and multi-string ballast architectures. The high-resolution PWM enables dimming frequencies and resolution beyond analog controller capability, supporting flicker-free operation and smooth deep-dimming curves. On-chip ADC channels monitor string current and board temperature each cycle, enabling derating and open/short fault detection in software. The dual-partition flash allows dimming curves and communication protocols (DALI, 0-10 V interfaces built from GPIO) to be updated after installation. The extended -40C to +125C temperature rating is valuable because LED driver enclosures routinely exceed +85C near the optics, and the exposed-pad QFN helps conduct controller heat into the driver PCB. The 70 MIPS headroom also accommodates power-metering and communication stacks concurrently.
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Battery Chargers and Power Monitoring
Smart battery chargers benefit from the DSPIC33EP128GS704-E/ML's combination of control performance and computational headroom. The 70 MIPS core runs multi-stage charging algorithms (constant current, constant voltage, termination) while simultaneously executing coulomb counting and state-of-charge estimation using DSP arithmetic. High-resolution PWM shapes the charging converter's switching behavior for efficiency and low ripple, and cycle-by-cycle current limiting protects the cell during faults. The extended -40C to +125C grade supports chargers in automotive bays, industrial tools, and outdoor equipment where the controller sits near power FETs. Dual-partition flash permits charging-profile updates as new cell chemistries are qualified, without replacing hardware. The 8 KB RAM holds filtering buffers for current/voltage telemetry and communication protocol state machines such as SMBus.
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Industrial Motor Control Auxiliaries and Power Subsystems
Beyond motor drive itself, industrial equipment contains auxiliary power stages - PFC front ends, auxiliary flybacks, heater controls - for which the DSPIC33EP128GS704-E/ML is well matched. Its 70 MIPS core and DSP capability handle control loops plus housekeeping tasks like fault logging, sensor linearization, and MODBUS/CAN-style communication frames in a single device, reducing BOM count versus discrete controller-plus-MCU architectures. The -40C to +125C extended temperature range tolerates cabinet environments with limited forced airflow, and the 44-QFN exposed pad provides a low-impedance thermal and ground path on the PCB. Dual-partition flash supports field firmware updates during maintenance windows, important for equipment deployed in remote or hard-to-service installations. Microchip's MPLAB X toolchain and SEGGER debug support (confirmed for this device) streamline development.
추천
추천 제품 요약
엔지니어링 참조 데이터: DSPIC33EP128GS704-E/ML — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | DSPIC33EP128GS704-I/ML | DSPIC33EP256GS704-E/ML | DSPIC33EP128GS704T-I/ML | DSPIC33EP64GS704-E/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 | 128 KB | 256 KB | 128 KB | 64 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) |
| Dual Partition Flash | Yes | Yes | Yes | Yes | Yes |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
주요 차별점
- Extended -40C to +125C temperature rating (vs DSPIC33EP128GS704-I/ML)
- Doubling of code space at same footprint (vs DSPIC33EP64GS704-E/ML)
- Cost optimization headroom within a fixed PCB footprint (vs DSPIC33EP32GS704-E/ML)
설계 노트
The 44-QFN (8x8 mm) package has an exposed pad on the underside that serves as both the primary ground connection and the main heat-removal path. Connect this pad to a solid ground plane with an array of thermal vias (typically 4x4 or more, filled if possible) to keep junction temperature within limits at +125C ambient operation. The E-grade rating only helps if the board can actually conduct heat away; a floating pad negates the extended-temperature advantage.
Decouple the 3.3 V supply with a 0.1 uF ceramic capacitor at each VDD pin, placed within 2 mm of the pin, plus one bulk 10 uF capacitor per supply domain. Because the GS704 drives power-stage gates through external drivers, PWM output edges inject noise into shared ground returns - keep the analog feedback routing (ADC sense lines) away from PWM traces and route them over a clean ground region. Follow the Microchip digital-power reference design layout as a template.
Dual-partition flash is the headline GS-family feature but requires early planning: the linker must place the active and inactive images in separate partitions, and the boot loader must implement the partition-swap sequence. Retrofitting live update into a single-partition design later is a significant rework. Also, when substituting the -I grade for the -E part to save cost, verify worst-case junction temperature with a proper thermal estimate - a part running at +95C junction on an -I grade will fail even though the board 'works in the lab.'
규정 준수 정보
Compliance details were not present in the provided verified web data; consult the Microchip product page environmental datasheet for RoHS/REACH status.