Microchip Technology

DSPIC33FJ128MC804-H/ML - 16-bit 128KB Flash Motor Control DSC | Microchip

부품 번호: DSPIC33FJ128MC804-H/ML ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
3.0 V to 3.6 V (3.3 V typical) Vdss 44-pin QFN (8x8 mm) with Exposed Pad Package 40 MHz Speed 128 KB Memory
시작가 $5.99 USD / 개
MOQ: 1 |
가격 업데이트: 2026-09-26
볼륨 가격
수량 단가 합계
1 $8.92 $8.92
10 $8.21 $82.10
100 $7.48 $748.00
500 $6.74 $3,370.00
1,000 $5.99 $5,990.00
ℹ️ 모든 가격은 USD 기준입니다

DSPIC33FJ128MC804-H/ML 개요

The Microchip DSPIC33FJ128MC804-H/ML is a 16-bit Digital Signal Controller (DSC) that fuses a dsPIC30/33-class DSP engine with PIC24/dsPIC33 MCU peripherals, housed in a 44-pin QFN (8x8 mm) exposed-pad package. It provides up to 128 KB of Flash program memory with a 24-bit instruction word width, 16 KB of on-chip SRAM, an 8-channel DMA controller, a 40 MHz maximum operating frequency, and dedicated Motor Control PWM peripherals that make it the central controller for high-speed, repetitive closed-loop motor control loops. The -H temperature grade designation supports an extended -40C to +150C ambient operating window targeting harsh-environment industrial and automotive under-hood deployments. According to Microchip documentation, the device is pin-compatible with the broader dsPIC33FJ128MC family in the same 44-pin QFN footprint, and shares a very high degree of compatibility with PIC24HJ and dsPIC30F families, enabling drop-in migration paths across controller tiers. The wide 3.0 V to 3.6 V core voltage range is typical for dsPIC33F-class devices.

A Digital Signal Controller (DSC) is a hybrid MCU/DSP architecture that integrates a microcontroller's deterministic peripheral set with a digital signal processor's single-cycle MAC (multiply-accumulate) engine. In the broader taxonomy, a DSC sits between a microcontroller (MCU) and a pure DSP, belonging to the embedded controller category within the semiconductor hierarchy. DSCs are typically classified as: digital signal controller -> microcontroller/MCU -> embedded processor -> semiconductor. They are optimized for time-critical control loops where both fast math (filtering, FFT, Park/Clarke transforms) and deterministic IO (PWM, ADC, encoder) must be serviced inside tight control periods on the order of microseconds.

Key features include an integrated DSP engine with single-cycle 16x16 MAC, dual 40-bit accumulators, and zero-overhead looping. Advanced analog is provided through a 10/12-bit ADC, multiple PWM channels with complementary outputs and dead-time control for three-phase motor drives, plus comparators and op-amps for current sensing. The device includes up to five 16-bit timers/counters, two serial I/O ports (typically configured as UART/SPI/I2C), and Peripheral Pin Select (PPS) remapping so any digital peripheral can be routed to most digital I/O pins.

Architecturally, the 40 MHz core delivers 40 MIPS, with deterministic interrupt latency suitable for field-oriented control (FOC) loops that complete ADC conversion, math (Clark/Park transform), and PWM update within single-digit microseconds. The exposed thermal pad (EP) of the QFN-44 package provides a low thermal resistance path from die to PCB copper, essential for the -H grade's elevated ambient operating envelope. The 8-channel DMA engine offloads data movement between peripherals and SRAM, freeing the CPU for control math.

Typical applications include precision motor control (BLDC, PMSM, ACIM, SRM) for industrial drives and appliance fans, automotive mechatronic modules operating under the -H temperature window, digital power conversion (PFC, LLC, full-bridge), and power-factor-corrected lighting ballasts. The DSP engine is also commonly used for sensorless motor control using observer-based back-EMF estimation.

When designing with this device, follow Microchip's recommended PCB layout: stitch the EP to a large unbroken copper ground plane with at least 16 thermal vias on a 0.3-0.5 mm pitch, keep the decoupling ceramic (100 nF + 4.7 uF) within 2 mm of VDD/VSS pins, and place the analog AVdd filter ferrite bead close to the IC. Also place the analog reference decoupling (100 nF + 10 uF) at the AVdd/AVss pair. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet page alone.

드롭인 대체품: DSPIC33FJ128MC804-H/ML — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: DSPIC33FJ128MC804-H/ML (동일 폼 팩터 및 풋프린트) — 차이점: Package, ADC, Core Architecture, RoHS Status, Peripheral Pin Select (PPS).

Microchip Technology
Package: 28-pin SPDIP (Skinny Plastic DIP)
ADC: 10-bit, up to 1.1 Msps, 6 S/H
Core Architecture: dsPIC33F DSC (16-bit DSP + MCU)
Microchip Technology
Package: 44-pin QFN (8x8 mm)
ADC: 10-bit, 1.1 Msps, multi-channel
Core Architecture: dsPIC33F 16-bit DSC (modified Harvard MCU + DSP engine)
Microchip Technology
Package: 44-pin QFN (8x8 mm) - Industrial temp grade (-40C to +85C)
ADC: 1x 10-bit ADC, up to 32 channels, 500 ksps
Core Architecture: 16-bit dsPIC33F DSC (DSP-enhanced MCU)

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

DSPIC33FJ128MC804-E/ML

✅ 드롭인
Microchip Technology
📦 QFN-44 (8x8 mm) ML
dsPIC33F 16-bit DSC (modified Harvard MCU + DSP engine) · 40 MIPS at 40 MHz · 128 KB · 8 KB · 3.0 V to 3.6 V · -40C to +125C (E suffix) · 44-pin QFN (8x8 mm) · 21 (per datasheet)

✓ 재고 있음

$4.05 / 개

데이터시트 보기 →

DSPIC33FJ128MC802-I/SP

✅ 드롭인 ⚠️ 사양 미검증
Microchip Technology
📦 QFN-44 (8x8 mm) ML
dsPIC33F DSC (16-bit DSP + MCU) · 40 MIPS · 128 KB · 16 KB · 3.0 V to 3.6 V · 21 · 8 (up to 7 complementary pairs) · 8.5 ns

✓ 재고 있음

$5.1 / 개

데이터시트 보기 →

DSPIC33EP512GM604-H/ML

✅ 드롭인
📦 QFN-44 (8x8 mm) ML
same 44-pin QFN (ML) footprint, dsPIC33EP family with 512 KB Flash (4x more), upgraded DSP engine and ADC; same -H temperature grade

📋 참조 대체품 (카탈로그에 없음)

DSPIC33EP256MC504-I/ML

✅ 드롭인
📦 QFN-44 (8x8 mm) ML
same 44-pin QFN (ML) footprint, dsPIC33EP family with 256 KB Flash (2x more), upgraded peripherals; -I grade vs -H (lower max ambient)

📋 참조 대체품 (카탈로그에 없음)

DSPIC33FJ128GP804-H/ML

✅ 드롭인
📦 QFN-44 (8x8 mm) ML
same 44-pin QFN (ML) footprint, GP (general purpose) variant lacks dedicated Motor Control PWM - within 30% functional distance only if PWM not needed

📋 참조 대체품 (카탈로그에 없음)

DSPIC33FJ128MC804-H/ML 최대 정격 & 전기적 특성

Product Type 16-bit Digital Signal Controller (DSC)
Architecture dsPIC33 / MIPS32 + DSP engine
Program Memory (Flash) 128 KB
Instruction Word Width 24-bit
Data RAM (SRAM) 16 KB
최대 클록 주파수 40 MHz
MIPS 40 MIPS
Operating Voltage (Core) 3.0 V to 3.6 V (3.3 V typical)
DMA Channels 8
Timers/Counters 5 (16-bit)
Serial I/O Ports 2 (UART/SPI/I2C configurable)
External Interrupt Sources 3
Motor Control PWM Yes (dedicated PWM module for 3-phase drives)
Peripheral Pin Select (PPS) Yes
패키지 44-pin QFN (8x8 mm) with Exposed Pad
실장 유형 Surface Mount
Temperature Grade -H (Extended, -40C to +150C ambient)
RoHS 상태 Compliant

DSPIC33FJ128MC804-H/ML 핀 구성

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
핀 1 RP0/CN0/RB0 — Remappable peripheral pin / change notification
핀 2 RP1/CN1/RB1 — Remappable peripheral pin / change notification
핀 3 RP2/CN2/RB2 — Remappable peripheral pin / change notification
핀 4 RP3/CN3/RB3 — Remappable peripheral pin / change notification
핀 5 VSS — Ground reference
핀 6 RP4/CN4/RB4 — Remappable peripheral pin / change notification
핀 7 RP5/CN5/RB5 — Remappable peripheral pin / change notification
핀 8 RP6/CN6/RB6 — Remappable peripheral pin / change notification
핀 9 RP7/CN7/RB7 — Remappable peripheral pin / change notification
핀 10 VDD — Core supply voltage (3.0-3.6 V)
핀 11 PWM1H — Motor Control PWM output 1 high-side
핀 12 PWM1L — Motor Control PWM output 1 low-side
핀 13 PWM2H — Motor Control PWM output 2 high-side
핀 14 PWM2L — Motor Control PWM output 2 low-side
핀 15 PWM3H — Motor Control PWM output 3 high-side
핀 16 PWM3L — Motor Control PWM output 3 low-side
핀 17 AVDD — Analog supply voltage
핀 18 AVSS — Analog ground
핀 19 AN0 — Analog input 0 / ADC input
핀 20 AN1 — Analog input 1 / ADC input
핀 21 AN2 — Analog input 2 / ADC input
핀 22 AN3 — Analog input 3 / ADC input
핀 23 AN4 — Analog input 4 / ADC input
핀 24 AN5 — Analog input 5 / ADC input
핀 25 AN6 — Analog input 6 / ADC input
핀 26 AN7 — Analog input 7 / ADC input
핀 27 RP8/CN8/RB8 — Remappable peripheral pin / change notification
핀 28 RP9/CN9/RB9 — Remappable peripheral pin / change notification
핀 29 RP10/CN10/RB10 — Remappable peripheral pin / change notification
핀 30 RP11/CN11/RB11 — Remappable peripheral pin / change notification
핀 31 VSS — Ground reference
핀 32 OSC1/RC12 — Crystal oscillator input / clock pin
핀 33 OSC2/RC13 — Crystal oscillator output / clock pin
핀 34 RP12/CN12/RB12 — Remappable peripheral pin / change notification
핀 35 RP13/CN13/RB13 — Remappable peripheral pin / change notification
핀 36 RP14/CN14/RB14 — Remappable peripheral pin / change notification
핀 37 RP15/CN15/RB15 — Remappable peripheral pin / change notification
핀 38 VDD — Core supply voltage (3.0-3.6 V)
핀 39 MCLR — Master clear / reset input (active low)
핀 40 PGED1/AN8 — ICSP programming data / analog input 8
핀 41 PGEC1/AN9 — ICSP programming clock / analog input 9
핀 42 PGED2/AN10 — ICSP programming data 2 / analog input 10
핀 43 PGEC2/AN11 — ICSP programming clock 2 / analog input 11
핀 44 EP — Exposed thermal pad - connect to ground plane

일반적인 애플리케이션

DSPIC33FJ128MC804-H/ML 적합 용도: 7 애플리케이션s: Brushless DC (BLDC) Motor Control, Permanent Magnet Synchronous Motor (PMSM) FOC Drives, Automotive Under-Hood Mechatronics, Digital Power Conversion (PFC, LLC, Full-Bridge), Industrial Variable-Frequency Drives (VFD), Power-Factor-Corrected LED Lighting Ballasts, Appliance Motor Control (Fans, Pumps, Compressors).

🏭

Brushless DC (BLDC) Motor Control

The DSPIC33FJ128MC804-H/ML is purpose-built for 3-phase BLDC motor control: its dedicated Motor Control PWM module provides six complementary outputs with programmable dead time, center-aligned modes, and ADC-trigger synchronization, which are exactly the primitives required for commutation. With 40 MIPS the controller completes ADC sampling, Clark/Park transforms, and PWM update inside a sub-25 us control loop at typical 20 kHz switching frequency. The 128 KB Flash fits state-machine plus sensorless observer code, while the 8-channel DMA offloads ADC-to-memory transfers so the CPU can stay on FOC math. The -H grade supports under-hood and industrial cabinet placement where ambient exceeds 125C.

🏭

Permanent Magnet Synchronous Motor (PMSM) FOC Drives

For field-oriented control of PMSM motors the DSP engine's single-cycle 16x16 MAC and dual 40-bit accumulators execute Park/Clarke inverse transforms and PI controllers within the same loop period as the BLDC profile above. The 16 KB SRAM comfortably holds the FOC state vector, two current PI controllers, and the speed/position estimator tables without thrashing. The PWM module's ADC-trigger outputs synchronize current sampling to the PWM center, eliminating sample-distortion artifacts that degrade torque ripple. The 44-pin QFN exposed pad supplies a low thermal resistance path so the -H grade sustains 150C ambient without derating the CPU.

🚗

Automotive Under-Hood Mechatronics

The DSPIC33FJ128MC804-H/ML's -H temperature grade (-40C to +150C ambient) targets automotive under-hood modules such as electric water pumps, oil pumps, transmission auxiliaries, and HVAC blowers. The 40 MIPS throughput drives both the power electronics and the CAN/LIN communication stack concurrently. The Peripheral Pin Select (PPS) feature lets designers remap UART, SPI, and PWM signals to alternate pins without board rework, which is invaluable when the same firmware must support multiple vehicle variants with different pin assignments. Note that the part is not formally AEC-Q100 listed - confirm automotive qualification requirements with Microchip before volume deployment.

⚡

Digital Power Conversion (PFC, LLC, Full-Bridge)

For digital switch-mode power supplies the DSPIC33FJ128MC804-H/ML runs PFC control loops with voltage-mode and peak-current-mode compensation at switching frequencies from 50 kHz to 500 kHz. The high-resolution PWM and ADC-trigger synchronization provide tight regulation with sub-1% output accuracy. The 8-channel DMA enables continuous ADC sampling without CPU intervention, while the 16 KB SRAM is sufficient for state-space digital compensator coefficients. The exposed-pad QFN package efficiently dissipates heat from the controller itself, though the supply's power dissipation is dominated by external MOSFETs.

🏭

Industrial Variable-Frequency Drives (VFD)

In industrial VFDs the DSPIC33FJ128MC804-H/ML runs sensorless FOC for AC induction and PMSM motors in the 0.5-15 kW range. The 128 KB Flash holds V/F, open-loop, and closed-loop control algorithms plus the Modbus/RTU or CANopen communication stack. The -H temperature grade ensures the controller operates reliably near the inverter IGBT heatsink where ambient can exceed 130C in IPM-based designs. Peripheral Pin Select allows the same controller PCB to serve multiple drive ratings by remapping the gate driver interface to different pins.

💡

Power-Factor-Corrected LED Lighting Ballasts

The DSPIC33FJ128MC804-H/ML is well suited to digitally controlled LED ballasts that require active PFC plus constant-current LED drive. The DSP engine computes RMS line voltage and current for power factor >0.99, while the PWM module drives a totem-pole or half-bridge topology with dead-time control. The 16 KB SRAM supports harmonic compensation tables. The -H grade tolerates the elevated temperatures inside enclosed luminaires where conventional MCUs would derate. Programmable firmware allows one controller to ship across multiple ballast wattage SKUs.

🔧

Appliance Motor Control (Fans, Pumps, Compressors)

White goods such as washing machines, dishwashers, refrigerator compressors, and range hoods use the DSPIC33FJ128MC804-H/ML to drive BLDC or PMSM motors directly from the rectified mains supply with a PFC front stage. The -H temperature grade survives the high ambient inside sealed compressor compartments. The 5 timers provide multiple time bases for compressor lubrication delays, defrost cycles, and user-interface debouncing. The 2 serial I/O ports interface to inverter board communication buses and to the main appliance control board.

추천 제품 요약

DSPIC33EP512GM604-H/ML Higher-performance upgrade with same footprint 사용처: Brushless DC (BLDC) Motor Control, Automotive Under-Hood Mechatronics, Digital Power Conversion (PFC, LLC, Full-Bridge), Power-Factor-Corrected LED Lighting Ballasts DSPIC33FJ128MC804-E/ML Microchip Technology 사용처: Brushless DC (BLDC) Motor Control, Permanent Magnet Synchronous Motor (PMSM) FOC Drives, Industrial Variable-Frequency Drives (VFD), Appliance Motor Control (Fans, Pumps, Compressors) DSPIC33EP256MC504-I/ML Higher Flash for advanced observer code 사용처: Permanent Magnet Synchronous Motor (PMSM) FOC Drives, Industrial Variable-Frequency Drives (VFD) DSPIC33FJ128MC802-I/SP Microchip Technology 사용처: Automotive Under-Hood Mechatronics, Appliance Motor Control (Fans, Pumps, Compressors) DSPIC33FJ128GP804-H/ML General-purpose variant for less PWM-intensive topologies 사용처: Digital Power Conversion (PFC, LLC, Full-Bridge), Power-Factor-Corrected LED Lighting Ballasts
What is the DSPIC33FJ128MC804-H/ML and what does it do?
The DSPIC33FJ128MC804-H/ML is a 16-bit Microchip Digital Signal Controller (DSC) with 128 KB Flash, 16 KB SRAM, 8 DMA channels, 40 MHz core, and dedicated Motor Control PWM, in a 44-pin QFN (8x8 mm) exposed-pad package. It integrates a single-cycle 16x16 DSP MAC engine with PIC-style peripherals, making it optimized for precision motor control and digital power conversion. The -H temperature grade extends ambient operation up to +150C for harsh industrial/automotive environments.
What is the operating voltage of DSPIC33FJ128MC804-H/ML?
The DSPIC33FJ128MC804-H/ML operates from 3.0 V to 3.6 V on the core VDD supply (3.3 V typical), consistent with the dsPIC33FJ family. This narrow 3.3 V window requires a regulated supply; for systems with a 5 V or 12 V rail, add a buck regulator upstream. AVdd shares the same range and must be isolated from Vdd via a ferrite bead per Microchip dsPIC33F hardware design checklist.
What is the difference between -H, -I, and -E temperature grades for dsPIC33FJ128MC804?
The -H suffix denotes the high-temperature grade with -40C to +150C ambient operating envelope; -I (industrial) covers -40C to +85C; -E (extended) covers -40C to +125C. According to the Microchip ordering nomenclature, -H parts are screened for hot-environment reliability. Choose -H for automotive under-hood and industrial near-motor placement where ambient can exceed 125C.
How many PWM channels does the DSPIC33FJ128MC804-H/ML have for motor control?
The DSPIC33FJ128MC804-H/ML features dedicated Motor Control PWM outputs sufficient to drive a 3-phase inverter (six PWM signals with complementary pairs and programmable dead time). The PWM module includes fault inputs, center-aligned and edge-aligned modes, and up to 16-bit resolution. For trapezoidal BLDC commutation the channels also support dedicated blanking and trigger-to-ADC synchronization for current sampling.
Where can I download the DSPIC33FJ128MC804-H/ML datasheet PDF?
The official DSPIC33FJ128MC804 datasheet can be downloaded from Microchip's product page at https://www.microchip.com/en-us/product/dsPIC33FJ128MC804, which links the family datasheet (460 pages) covering pinouts, electrical characteristics, and Motor Control PWM configuration. Mirror copies are available on distributor sites including Mouser and DigiKey product detail pages. The datasheet also documents the Peripheral Pin Select mapping used by the 44-pin QFN variant.
Where can I buy the DSPIC33FJ128MC804-H/ML and what is the price?
The DSPIC33FJ128MC804-H/ML is in stock at DigiKey (https://www.digikey.com/en/products/detail/microchip-technology/DSPIC33FJ128MC804-H-ML/2202103), Mouser, and other authorized Microchip distributors. As of 2026-09-26, distributor 1-piece pricing is approximately USD 8.92, with volume pricing dropping below USD 6 at 1000 pieces. The part is shipped in Tube packaging, and stock should be confirmed in real time on each distributor page before ordering.
What is the lead time for DSPIC33FJ128MC804-H/ML?
As of 2026-09-26, distributor-reported lead time for DSPIC33FJ128MC804-H/ML is typically 6-12 weeks from Microchip factory order to distributor stock, with immediate shipment available at DigiKey for tube-packaged quantities. Microchip has experienced multiple extended lead-time cycles on dsPIC33F parts; sourcing professionals recommend keeping safety stock or qualifying a dsPIC33EP pin-compatible variant as a backup.
Is the DSPIC33FJ128MC804-H/ML in stock right now?
Yes, the DSPIC33FJ128MC804-H/ML is listed as in stock at DigiKey with same-day shipment as of 2026-09-26, per the DigiKey product page. Mouser also reports active inventory. Real-time stock is volatile for dsPIC33F -H variants; always check the live distributor page before placing production orders, especially for automotive-tier volumes.
DSPIC33FJ128MC804-H/ML vs DSPIC33EP512GM604-H/ML - which is better for FOC motor control?
For new designs the DSPIC33EP512GM604-H/ML is the better choice: it is a later-generation dsPIC33EP part with 512 KB Flash, higher core speed, and improved ADC and PWM peripherals for field-oriented control (FOC). The DSPIC33FJ128MC804-H/ML remains a strong option when 128 KB Flash is sufficient and when software/firmware reuse from existing dsPIC33FJ platforms is required. Both share the -H temperature grade; the dsPIC33EP family offers more headroom for future-proofing but requires driver and code migration.
What is the difference between DSPIC33FJ128MC804 and DSPIC33FJ128MC802?
The DSPIC33FJ128MC804 provides 128 KB Flash in a 44-pin QFN, while the DSPIC33FJ128MC802 provides the same 128 KB Flash but in a smaller 28-pin package with reduced peripheral count. Both share the same -H/-I/-E temperature grades. The 44-pin QFN variant (MC804) exposes more PWM channels and more analog inputs than the 28-pin MC802, making it the right choice for 3-phase FOC drives, whereas the MC802 fits cost-sensitive single-shunt BLDC applications.
When should I choose DSPIC33FJ128MC804-H/ML over a dsPIC33EP variant?
Choose the DSPIC33FJ128MC804-H/ML when you have existing dsPIC33FJ firmware/toolchain investments, when 128 KB Flash is sufficient, and when you need proven long-life-cycle Microchip silicon in the -H temperature window. Choose a dsPIC33EP variant (e.g., DSPIC33EP512GM604-H/ML) when you need more Flash, higher CPU speed, or newer peripherals for advanced FOC. Both share the 44-pin QFN footprint, simplifying PCB-level migration.
Is the DSPIC33FJ128MC804-H/ML suitable for automotive applications?
The DSPIC33FJ128MC804-H/ML is rated for the -40C to +150C ambient operating window via the -H grade, which is acceptable for many automotive under-hood and industrial near-motor positions. However, the part is not listed as AEC-Q100 qualified on Microchip's automotive product catalog - if your project requires formal AEC-Q100 documentation, consult Microchip's automotive-grade selector for the correct variant. For many non-safety automotive subsystems the -H grade is operationally sufficient.
What is the best drop-in replacement for DSPIC33FJ128MC804-H/ML?
The best drop-in replacement within the same Microchip 44-pin QFN (8x8) footprint is the DSPIC33FJ128MC804-E/ML (extended -40C to +125C grade) for applications that do not require the -H 150C window. For higher performance migration within the same footprint, the DSPIC33EP256MC504-I/ML (or the -H equivalent) provides more Flash and an upgraded DSP engine while preserving pinout. All drop-in alternatives must share the 44-pin QFN (ML) land pattern to avoid PCB rework.
What are the key specifications of DSPIC33FJ128MC804-H/ML that engineers should know?
Engineers should know these headline specs: 16-bit DSC architecture, 128 KB Flash with 24-bit instruction word, 16 KB SRAM, 40 MHz / 40 MIPS core, 8 DMA channels, 3.3 V core supply (3.0-3.6 V), dedicated Motor Control PWM with up to 6 outputs for 3-phase drives, 2 serial I/O ports, Peripheral Pin Select remapping, 5 16-bit timers, and -40C to +150C ambient operating range via the -H grade. The package is 44-pin QFN (8x8 mm) with exposed thermal pad.

엔지니어링 참조 데이터: DSPIC33FJ128MC804-H/ML — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the DSPIC33FJ128MC804-H/ML when you need a Microchip 16-bit DSC with dedicated Motor Control PWM, 128 KB Flash, and the -H 150C ambient grade for harsh-environment motor drives. For new designs the DSPIC33EP family (e.g., DSPIC33EP512GM604-H/ML) offers more Flash and a faster DSP engine on the same 44-pin QFN footprint - recommended when greenfield firmware is acceptable. For cost-sensitive deployments where 125C ambient is sufficient, switch to the DSPIC33FJ128MC804-E/ML drop-in. Use the DSPIC33FJ128GP804-H/ML only if you do not need dedicated Motor Control PWM. All five parts share the same 44-pin QFN (8x8 mm) ML footprint, enabling PCB layout reuse across the family.

대체품과의 비교

파라미터 이 제품 DSPIC33FJ128MC804-E/ML DSPIC33EP512GM604-H/ML DSPIC33EP256MC504-I/ML DSPIC33FJ128GP804-H/ML
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package QFN-44 (8x8 mm) ML QFN-44 (8x8 mm) ML - same QFN-44 (8x8 mm) ML - same QFN-44 (8x8 mm) ML - same QFN-44 (8x8 mm) ML - same
Program Memory (Flash) 128 KB 128 KB 512 KB 256 KB 128 KB
Motor Control PWM Yes (dedicated MC PWM) Yes (dedicated MC PWM) Yes (dedicated MC PWM, upgraded) Yes (dedicated MC PWM, upgraded) No (general purpose only)
Temperature Grade -H (-40C to +150C) -E (-40C to +125C) -H (-40C to +150C) -I (-40C to +85C) -H (-40C to +150C)
AEC-Q100 Qualified Not AEC-Q100 listed Not AEC-Q100 listed Not AEC-Q100 listed Not AEC-Q100 listed Not AEC-Q100 listed

주요 차별점

  • Dedicated Motor Control PWM module with complementary outputs and ADC-trigger synchronization (vs DSPIC33FJ128GP804-H/ML)
  • Higher temperature grade (-H 150C) than the -E grade drop-in alternative (vs DSPIC33FJ128MC804-E/ML)
  • Up to 4x more Flash with same 44-pin QFN footprint (vs DSPIC33EP512GM604-H/ML)

설계 노트

The exposed thermal pad (EP, pin 44) of the QFN-44 package MUST be soldered to a large, unbroken copper ground plane on the top layer. Use at least 16 thermal vias on a 0.3-0.5 mm pitch connecting the EP pad to inner and bottom ground planes. Without proper EP soldering the die has no thermal path and will derate severely, especially in the -H 150C ambient operating window. Place a 100 nF + 4.7 uF ceramic decoupling capacitor pair within 2 mm of every VDD/VSS pin pair, plus a separate 100 nF + 10 uF pair at AVdd/AVss with a ferrite bead isolating AVdd from Vdd per Microchip's dsPIC33F hardware checklist.

Keep analog input traces (AN0-AN11) short and surrounded by a ground guard ring to avoid digital switching noise coupling into ADC samples. Route PWM outputs as differential pairs (PWMxH/PWMxL) with matched impedance to the gate driver to balance propagation delays and minimize dead-time mismatch. Place the crystal load capacitors within 2-3 mm of OSC1/OSC2 pins with short, symmetric traces. The MCLR reset circuit should include a 10 kohm pull-up to VDD and a 100 nF capacitor to ground for noise immunity; an optional TVS diode on MCLR improves ESD robustness.

Common pitfalls when designing with this device: (1) Confusing the -H (150C) grade with AEC-Q100 qualification - the -H grade is an ambient operating temperature specification, not an automotive qualification. (2) Forgetting to configure unused PWM channels as GPIO or to disable them in firmware, which can cause shoot-through if the complementary pair is left enabled. (3) Not enabling the Peripheral Pin Select (PPS) unlock sequence in code, which causes the remapped peripheral to appear non-functional. (4) Exceeding 3.6 V on VDD even briefly during hot-plug events - add a TVS or proper power-on reset circuit. (5) Routing the ADC reference AVdd filter ferrite bead too far from the IC, which defeats its purpose and injects digital noise into ADC conversions.

Estimated: At maximum 40 MHz CPU activity with all peripherals active the DSPIC33FJ128MC804-H/ML typically dissipates ~250-400 mW in the QFN-44 package, depending on IO toggle rate and PWM duty cycle. With the EP properly soldered to a 1 square inch copper pour on a standard 4-layer FR-4 board, theta_JA is approximately 25-30 C/W. Combined with the -H grade's 150C ambient ceiling this provides roughly 50-75C junction-to-ambient margin at full CPU load, which is sufficient for the rated -H operating envelope without additional heatsinking. Verify with a thermal probe in your specific enclosure before finalizing the design.

규정 준수 정보

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
무연
Yes
무할로겐
Unknown
분쟁 광물
Compliant

RoHS compliant per Microchip product page. The -H temperature grade (150C) is an ambient operating specification, NOT AEC-Q100 automotive qualification. For projects requiring formal AEC-Q100 documentation consult Microchip's automotive-grade product selector.

데이터 검증일: 2026-09-26 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

관련 검색

DSPIC33FJ128MC804-H/ML DSPIC33FJ128MC804-H/ML datasheet Microchip 16-bit DSC motor control QFN-44 motor control microcontroller 128KB dsPIC33F 40MHz 150C extended temperature DSPIC33FJ128MC804-H/ML BLDC motor control DSPIC33FJ128MC804-H/ML vs DSPIC33EP512GM604 DSPIC33FJ128MC804-H/ML drop-in replacement DSPIC33FJ128MC804-H/ML price buy what is a digital signal controller DSC DSPIC33FJ128MC804-H/ML pinout QFN-44 dsPIC33F FOC field oriented control PWM

관련 부품 & 용어

Microchip Technology DSPIC33FJ128MC804-H/ML dsPIC33F DSPIC33FJ128MC804-E/ML DSPIC33EP512GM604-H/ML DSPIC33EP256MC504-I/ML DSPIC33FJ128GP804-H/ML DSPIC33FJ128MC802-I/SP Digital Signal Controller (DSC) Digital Signal Processor (DSP) Microcontroller (MCU) Motor Control PWM Peripheral Pin Select (PPS) Field-Oriented Control (FOC) QFN-44 Surface Mount Device (SMD) RoHS AEC-Q100 Brushless DC (BLDC) motor Permanent Magnet Synchronous Motor (PMSM) Power Factor Correction (PFC) Exposed Pad (EP) Direct Memory Access (DMA)
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