DSPIC33FJ128MC804-H/ML - 16-bit 128KB Flash Motor Control DSC | Microchip
料号： DSPIC33FJ128MC804-H/ML ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 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 |
DSPIC33FJ128MC804-H/ML 概述
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.
直接替换替代料： DSPIC33FJ128MC804-H/ML ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： DSPIC33FJ128MC804-H/ML （相同外形与封装尺寸） ——差异在于 Package, ADC, Core Architecture, RoHS Status, Peripheral Pin Select (PPS).
快速对比工具——选择替代料号进行并排对比：
DSPIC33FJ128MC804-E/ML
✅ 直接替换✓ 有现货
$4.05 / 个
查看数据手册 →DSPIC33FJ128MC802-I/SP
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$5.1 / 个
查看数据手册 →DSPIC33EP512GM604-H/ML
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33EP256MC504-I/ML
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33FJ128GP804-H/ML
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33FJ128MC804-H/ML 最大额定值与电气特性
| 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 |
| 最大时钟频率 | 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 |
| 封装 | 44-pin QFN (8x8 mm) with Exposed Pad |
| 安装类型 | Surface Mount |
| Temperature Grade | -H (Extended, -40C to +150C ambient) |
| RoHS 状态 | Compliant |
DSPIC33FJ128MC804-H/ML 引脚配置
| 引脚 1 | RP0/CN0/RB0 — Remappable peripheral pin / change notification |
| 引脚 2 | RP1/CN1/RB1 — Remappable peripheral pin / change notification |
| 引脚 3 | RP2/CN2/RB2 — Remappable peripheral pin / change notification |
| 引脚 4 | RP3/CN3/RB3 — Remappable peripheral pin / change notification |
| 引脚 5 | VSS — Ground reference |
| 引脚 6 | RP4/CN4/RB4 — Remappable peripheral pin / change notification |
| 引脚 7 | RP5/CN5/RB5 — Remappable peripheral pin / change notification |
| 引脚 8 | RP6/CN6/RB6 — Remappable peripheral pin / change notification |
| 引脚 9 | RP7/CN7/RB7 — Remappable peripheral pin / change notification |
| 引脚 10 | VDD — Core supply voltage (3.0-3.6 V) |
| 引脚 11 | PWM1H — Motor Control PWM output 1 high-side |
| 引脚 12 | PWM1L — Motor Control PWM output 1 low-side |
| 引脚 13 | PWM2H — Motor Control PWM output 2 high-side |
| 引脚 14 | PWM2L — Motor Control PWM output 2 low-side |
| 引脚 15 | PWM3H — Motor Control PWM output 3 high-side |
| 引脚 16 | PWM3L — Motor Control PWM output 3 low-side |
| 引脚 17 | AVDD — Analog supply voltage |
| 引脚 18 | AVSS — Analog ground |
| 引脚 19 | AN0 — Analog input 0 / ADC input |
| 引脚 20 | AN1 — Analog input 1 / ADC input |
| 引脚 21 | AN2 — Analog input 2 / ADC input |
| 引脚 22 | AN3 — Analog input 3 / ADC input |
| 引脚 23 | AN4 — Analog input 4 / ADC input |
| 引脚 24 | AN5 — Analog input 5 / ADC input |
| 引脚 25 | AN6 — Analog input 6 / ADC input |
| 引脚 26 | AN7 — Analog input 7 / ADC input |
| 引脚 27 | RP8/CN8/RB8 — Remappable peripheral pin / change notification |
| 引脚 28 | RP9/CN9/RB9 — Remappable peripheral pin / change notification |
| 引脚 29 | RP10/CN10/RB10 — Remappable peripheral pin / change notification |
| 引脚 30 | RP11/CN11/RB11 — Remappable peripheral pin / change notification |
| 引脚 31 | VSS — Ground reference |
| 引脚 32 | OSC1/RC12 — Crystal oscillator input / clock pin |
| 引脚 33 | OSC2/RC13 — Crystal oscillator output / clock pin |
| 引脚 34 | RP12/CN12/RB12 — Remappable peripheral pin / change notification |
| 引脚 35 | RP13/CN13/RB13 — Remappable peripheral pin / change notification |
| 引脚 36 | RP14/CN14/RB14 — Remappable peripheral pin / change notification |
| 引脚 37 | RP15/CN15/RB15 — Remappable peripheral pin / change notification |
| 引脚 38 | VDD — Core supply voltage (3.0-3.6 V) |
| 引脚 39 | MCLR — Master clear / reset input (active low) |
| 引脚 40 | PGED1/AN8 — ICSP programming data / analog input 8 |
| 引脚 41 | PGEC1/AN9 — ICSP programming clock / analog input 9 |
| 引脚 42 | PGED2/AN10 — ICSP programming data 2 / analog input 10 |
| 引脚 43 | PGEC2/AN11 — ICSP programming clock 2 / analog input 11 |
| 引脚 44 | EP — Exposed thermal pad - connect to ground plane |
典型应用
DSPIC33FJ128MC804-H/ML 适用于 7 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： DSPIC33FJ128MC804-H/ML ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Dedicated Motor Control PWM module with complementary outputs and ADC-trigger synchronization （对比 DSPIC33FJ128GP804-H/ML)
- Higher temperature grade (-H 150C) than the -E grade drop-in alternative （对比 DSPIC33FJ128MC804-E/ML)
- Up to 4x more Flash with same 44-pin QFN footprint （对比 DSPIC33EP512GM604-H/ML)
设计说明
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.
合规信息
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.