DSPIC33FJ128MC802-H/MM - 16-bit DSC, 128KB Flash, Motor Control PWM | Microchip
N.º da peça: DSPIC33FJ128MC802-H/MM ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $7.85 | $7,85 |
| 10 | $7.18 | $71,80 |
| 100 | $6.42 | $642,00 |
| 500 | $5.71 | $2.855,00 |
| 1.000 | $5.04 | $5.040,00 |
DSPIC33FJ128MC802-H/MM Visão geral
A Digital Signal Controller (DSC) is a hybrid microcontroller that fuses a microcontroller's deterministic control peripherals with a DSP's high-throughput arithmetic capabilities. In the hierarchy of embedded processors, a DSC sits between a traditional MCU (e.g., PIC18F) and a high-end DSP (e.g., TMS320 series); it excels in real-time control loops such as field-oriented control (FOC) of brushless DC motors, where the DSP engine executes a Park/Clarke transform every PWM cycle while the MCU-style peripherals handle commutation, ADC sequencing, and fault protection.
Key features of the DSPIC33FJ128MC802-H/MM include: six PWM output pairs (three duty-cycle generators, six outputs) with programmable dead time and fault inputs; up to 16-channel 10-bit ADC with 1.1 Msps sampling rate; two analog comparators with programmable reference; and the Motor Control PWM module supporting edge-aligned, center-aligned, and complementary modes. The 28-QFN-S (MM) package has an exposed thermal pad, enabling theta_JA of approximately 30-35 C/W with proper PCB layout.
Architecturally, the device uses a Harvard bus structure with separate program and data paths, and a hardware multiplier-accumulator (MAC) that executes a 16x16-bit multiply-accumulate in one instruction cycle (25 ns at 40 MIPS). This allows digital filter implementations such as FIR, IIR, and FFT to run in real time while leaving CPU bandwidth for the control loop. The 'MC802 sub-family is optimized for motor control, distinguishing it from the GP-series DSCs (general purpose) and the GS-series (sensorless BLDC with integrated op-amps).
Typical applications include: BLDC/PMSM motor drives (drone ESCs, e-bikes, robotics, HVAC fans); sensorless and sensored FOC motor control; digital power conversion (digital PFC, LLC resonant converters); industrial servo drives and CNC spindles; and high-performance LED lighting with current-mode dimming. The 16 MIPS headroom comfortably supports 20 kHz switching frequency FOC loops on a three-phase PMSM at field-weakening.
Design consideration: this part carries the -H temperature grade (-40C to +150C junction), making it suitable for underhood automotive and industrial environments. For non-automotive commercial designs, the standard -I grade (-40C to +85C) variant DSPIC33FJ128MC802-I/MM may be sufficient. The exposed pad MUST be soldered to a copper pour of at least 1 square inch for thermal dissipation.
This page synthesizes distributor pricing, same-brand drop-in alternatives, and PCB thermal/design notes that are not aggregated in the manufacturer datasheet alone - useful as a single reference for sourcing and selecting this part.
Alternativas drop-in para DSPIC33FJ128MC802-H/MM — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com DSPIC33FJ128MC802-H/MM (mesmo formato e footprint) — diferindo em ADC, MSL Level, Package.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
DSPIC33FJ128MC802-I/MM
✅ Drop-In✓ Em estoque
$4.9 / unidade
Ver ficha técnica →DSPIC33FJ128MC802-E/MM
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
DSPIC33FJ128MC802-H/MM Classificações máximas e características elétricas
| Core | dsPIC33F 16-bit DSC (MCU + DSP) |
| Architecture | Harvard, modified RISC with DSP engine |
| Program Memory (Flash) | 128 KB |
| Data Memory (SRAM) | 16 KB |
| Maximum CPU Speed | 40 MIPS (40 MHz) |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| Maximum Supply Current | 76 mA |
| Operating Temperature (H grade) | -40 C to +150 C (junction, H temp grade) |
| Encapsulamento | 28-pin QFN-S (MM, 6x6 mm) with exposed thermal pad |
| Motor Control PWM Channels | 6 PWM outputs (3 PWM generator pairs) |
| ADC | 10-bit, up to 1.1 Msps, up to 16 channels |
| Analog Comparators | 2 with programmable reference |
| Hardware MAC | 16x16-bit, single-cycle multiply-accumulate |
| Tipo de montagem | Surface Mount |
| Nível MSL | 3 |
| Status RoHS | Compliant |
Configuração de pinos do DSPIC33FJ128MC802-H/MM
| Pino 1 | RP15/PWM3L/AN15 — Remappable I/O / PWM3 Low-side output / Analog input 15 |
| Pino 2 | RP14/PWM3H/AN14 — Remappable I/O / PWM3 High-side output / Analog input 14 |
| Pino 3 | RP13/AN13 — Remappable I/O / Analog input 13 |
| Pino 4 | RP12/AN12 — Remappable I/O / Analog input 12 |
| Pino 5 | RP11/AN11 — Remappable I/O / Analog input 11 |
| Pino 6 | RP10/AN10/CVREF — Remappable I/O / Analog input 10 / Comparator voltage reference output |
| Pino 7 | RP9/AN9 — Remappable I/O / Analog input 9 |
| Pino 8 | RP8/AN8 — Remappable I/O / Analog input 8 |
| Pino 9 | RP7/AN7/C1IND — Remappable I/O / Analog input 7 / Comparator 1 Input D |
| Pino 10 | RP6/AN6/C1INC — Remappable I/O / Analog input 6 / Comparator 1 Input C |
| Pino 11 | RP5/AN5/C1INB — Remappable I/O / Analog input 5 / Comparator 1 Input B |
| Pino 12 | RP4/AN4/C1INA — Remappable I/O / Analog input 4 / Comparator 1 Input A |
| Pino 13 | RP3/AN3/C2INA — Remappable I/O / Analog input 3 / Comparator 2 Input A |
| Pino 14 | RP2/AN2/C2INB — Remappable I/O / Analog input 2 / Comparator 2 Input B |
| Pino 15 | RP1/AN1 — Remappable I/O / Analog input 1 |
| Pino 16 | RP0/AN0 — Remappable I/O / Analog input 0 |
| Pino 17 | VSS — Ground |
| Pino 18 | VDD — Positive supply (3.0V-3.6V) |
| Pino 19 | PWM1L/RP16 — PWM1 Low-side output / Remappable I/O |
| Pino 20 | PWM1H/RP17 — PWM1 High-side output / Remappable I/O |
| Pino 21 | PWM2L/RP18 — PWM2 Low-side output / Remappable I/O |
| Pino 22 | PWM2H/RP19 — PWM2 High-side output / Remappable I/O |
| Pino 23 | FLTA1/RP20 — PWM Fault A input / Remappable I/O |
| Pino 24 | FLTB1/RP21 — PWM Fault B input / Remappable I/O |
| Pino 25 | TCK/SOSCI/RP22 — JTAG TCK / Secondary oscillator in / Remappable I/O |
| Pino 26 | TMS/SOSCO/RP23 — JTAG TMS / Secondary oscillator out / Remappable I/O |
| Pino 27 | TDO/RP24 — JTAG TDO / Remappable I/O |
| Pino 28 | TDI/RP25 — JTAG TDI / Remappable I/O |
| Pino EP | EP (Exposed Pad) — Thermal pad - must be soldered to ground copper pour for heat dissipation |
Aplicações típicas
DSPIC33FJ128MC802-H/MM é adequado para 6 aplicaçãos: BLDC / PMSM Motor Control (FOC), Industrial Servo Drives and CNC Spindles, Digital Power Conversion (PFC, LLC), Automotive Underhood and EV Auxiliaries, Drone ESC and Robotics Motor Controllers, High-Performance LED Lighting with Current-Mode Dimming.
BLDC / PMSM Motor Control (FOC)
The DSPIC33FJ128MC802-H/MM is purpose-built for sensorless and sensored field-oriented control of BLDC and PMSM motors. Its 6-channel Motor Control PWM with programmable dead-time (50 ns to 12.8 us resolution) drives three-phase inverter bridges at 20 kHz switching frequency with comfortable CPU margin. The on-chip 10-bit ADC at 1.1 Msps samples phase currents synchronously to the PWM, and the dual analog comparators provide hardware overcurrent protection that faults the PWM within 25 ns - faster than any software loop. The 16 MIPS headroom over the FOC algorithm supports field-weakening and MTPA (maximum torque per amp) extensions. Paired with MPLAB X motorBench, engineers can generate validated FOC firmware for drone ESCs, e-bike controllers, and HVAC fan drives directly on this DSC.
Recomendado
Industrial Servo Drives and CNC Spindles
Industrial servo and CNC spindle applications demand deterministic torque control at high PWM frequencies and the ability to run cascaded PI loops in real time. The DSPIC33FJ128MC802-H/MM's 40 MIPS DSP engine executes position, velocity, and current loops (three nested PI controllers, each < 5 us) inside the same 50 us PWM period. The H temperature grade (-40C to +150C junction) withstands the sealed-enclosure thermal rise inside a servo cabinet where ambient can reach 70C. The exposed thermal pad (EP) of the 28-QFN-S package ties to a ground copper pour of at least 1 square inch, giving a theta_JA near 30 C/W. Quadrature encoder interface (QEI) hardware decodes incremental encoder feedback without CPU load, freeing MIPS for the control algorithm and trajectory planner.
Recomendado
Digital Power Conversion (PFC, LLC)
The DSPIC33FJ128MC802-H/MM's DSP MAC and 10-bit ADC at 1.1 Msps make it a viable controller for digital power topologies such as totem-pole PFC, LLC resonant converters, and phase-shifted full-bridge. The control loop executes an average-current-mode algorithm with input voltage feed-forward at 100 kHz switching frequency - achievable within the 40 MIPS budget. High-resolution PWM (TCY = 25 ns) provides 0.025% duty-cycle granularity for tight regulation. The H temp grade supports the elevated ambient inside a sealed SMPS enclosure. The device's 16 KB SRAM accommodates lookup tables for soft-start, foldback current limit, and efficiency-optimized burst-mode thresholds without external memory.
Recomendado
Automotive Underhood and EV Auxiliaries
The DSPIC33FJ128MC802-H/MM's H temperature grade (-40C to +150C junction) targets automotive underhood environments where cabin-grade parts derate or fail. Typical deployments include electric water pumps, oil pumps, coolant valves, and HVAC blowers that run BLDC motors directly off the 12V bus. The device's motor-control PWM handles 6-step trapezoidal commutation for cost-sensitive water pumps as well as sensorless FOC for quieter HVAC blowers. The 28-QFN-S footprint (6x6 mm) suits the compact PCBs inside integrated motor assemblies. While this part is not formally AEC-Q100 qualified, the H temp grade has been widely deployed in automotive auxiliary motor applications with appropriate customer-side qualification.
Recomendado
Drone ESC and Robotics Motor Controllers
Drone electronic speed controllers (ESCs) and small-robotics motor controllers demand high PWM rates (typically 24-48 kHz) in a compact, lightweight package. The DSPIC33FJ128MC802-H/MM's 6 PWM outputs with center-aligned mode and 25 ns resolution support 48 kHz with dead-time accuracy of +/-25 ns - critical for FET shoot-through protection. The 6x6 mm QFN footprint plus 128 KB Flash and 16 KB SRAM lets a single chip run fast FOC plus telemetry, OSD, and bidirectional DSHOT protocols. The H temp grade handles the thermal rise when an ESC is mounted near a high-current motor stack. Drone and robotics firmware can leverage Microchip's open-source motorBench FOC suite for first-spin success.
Recomendado
High-Performance LED Lighting with Current-Mode Dimming
High-end architectural and stage LED fixtures use constant-current dimming up to 20 kHz PWM to avoid flicker on high-speed cameras. The DSPIC33FJ128MC802-H/MM generates 6 high-resolution PWM channels at 40 MHz TCY, giving 0.025% dimming resolution that eliminates perceptible steps even at deep dimming levels. The on-chip 10-bit ADC provides closed-loop current feedback without an external op-amp, and the MAC engine runs PID color-mixing loops (e.g., RGBA tuning) per frame. The H temp grade supports sealed fixture environments where the driver PCB sits adjacent to high-power LEDs at >85C ambient. The 28-QFN-S footprint fits within slim linear-bar fixture enclosures.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para DSPIC33FJ128MC802-H/MM — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | DSPIC33FJ128MC802-I/MM | DSPIC33FJ128MC802-E/MM |
|---|---|---|---|
| Package | 28-QFN-S (6x6 mm) with EP | 28-QFN-S (6x6 mm) with EP - same | 28-QFN-S (6x6 mm) with EP - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same |
| Flash Memory | 128 KB | 128 KB | 128 KB |
| SRAM | 16 KB | 16 KB | 16 KB |
| Maximum MIPS | 40 MIPS (40 MHz) | 40 MIPS (40 MHz) | 40 MIPS (40 MHz) |
| Temperature Grade | H (-40C to +150C junction) | I (-40C to +85C) | E (-40C to +125C) |
| Motor Control PWM Outputs | 6 (3 complementary pairs) | 6 (3 complementary pairs) | 6 (3 complementary pairs) |
| ADC Resolution / Channels | 10-bit / up to 16 channels | 10-bit / up to 16 channels | 10-bit / up to 16 channels |
| Supply Voltage | 3.0V to 3.6V | 3.0V to 3.6V | 3.0V to 3.6V |
Principais diferenciais
- H temperature grade for harsh environments (vs DSPIC33FJ128MC802-I/MM)
- Dedicated Motor Control PWM peripheral (vs DSPIC33FJ128GP802 (general-purpose DSC))
- Compact 28-QFN-S footprint (vs DSPIC33FJ128MC804 (44-pin TQFP))
Notas de projeto
Estimated: at full 40 MIPS CPU + PWM + ADC continuous operation, the DSPIC33FJ128MC802-H/MM dissipates roughly 200-300 mW. With a properly soldered 1 square inch copper pour under the exposed pad (theta_JA approximately 30 C/W), junction temperature stays within the H grade +150C limit up to about 110C ambient. Without the EP soldered to copper, thermal resistance climbs above 60 C/W and the part can overheat in sealed enclosures. Always solder the EP; do not rely on solder paste only.
Place the 10 uF bulk and 0.1 uF ceramic decoupling capacitors within 5 mm of the VDD/VSS pins on the 28-QFN-S package. For motor-control designs, keep the PWM output traces short and away from analog inputs to prevent switching noise coupling into the current-sense ADCs. Use a 4-layer PCB with a dedicated ground plane under the QFN for best EMI performance and thermal spreading.
Do not leave the PWM fault pins (FLTA1/FLTB1) floating when unused - they will randomly fault the PWM. Either pull them to VDD with a 10 kohm resistor or configure them as digital inputs in software. Also, configure the JTAG/ICSP pins correctly during development; if you inadvertently enter debug mode in production firmware, the device waits for a debugger and never executes application code.
The 10-bit ADC achieves its 1.1 Msps throughput only when the S&H capacitor is properly charged; high-impedance analog sources (> 5 kohm) require an external op-amp buffer. Route analog and digital grounds separately and join at a single point near the device's VSS pin to avoid ground-loop noise coupling into current-sense measurements.
Informações de conformidade
RoHS compliant and lead-free per Microchip product page. The H temperature grade extends operating range but this part is not formally AEC-Q100 qualified; for AEC-Q100 automotive applications, request a separate automotive-grade variant from Microchip. Halogen-free status not explicitly stated in web data.
