DSPIC33FJ12MC202-E/SS - 16-bit Motor Control DSC, 40 MIPS, 12KB Flash | Microchip
N.º da peça: DSPIC33FJ12MC202-E/SS ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $5.32 | $5,32 |
| 10 | $4.78 | $47,80 |
| 100 | $3.95 | $395,00 |
| 500 | $3.41 | $1.705,00 |
| 1.000 | $2.99 | $2.990,00 |
DSPIC33FJ12MC202-E/SS Visão geral
A Digital Signal Controller (DSC) is a class of MCU that augments a standard microcontroller core with a DSP engine - a hardware multiplier-accumulator (MAC) and barrel shifter - enabling deterministic execution of control loops, digital filters, and power-conversion algorithms in a single chip. Within the broader taxonomy, the dsPIC33F family bridges 8/16-bit PIC MCUs and 32-bit devices, offering C-compiler-friendly Harvard architecture with deterministic interrupt latency and DSP instructions such as MAC, ED, and EDAC. The -E suffix indicates the -40 C to +125 C extended operating temperature grade, qualified to AEC-Q100 for automotive environments.
Key differentiating specifications of the DSPIC33FJ12MC202-E/SS include the 6-output Motor Control PWM (up to 16-bit resolution with 7.5 ns dead-time control), the 500 ksps 10-bit ADC with dedicated S&H, the 40 MIPS core, and integrated op-amp comparators that interface directly to motor current-sense shunt signals. Five 16-bit timers and four DMA channels support low-CPU-overhead data movement. The PPS peripheral pin-select unit allows remapping of digital I/O functions to any of the general-purpose pins, simplifying PCB layout when motor-control signals must be routed near power stages.
The architecture features separate program and data buses with 24-bit instruction words and 16-bit data paths. A 16 x 16 hardware multiplier with 40-bit accumulator resolves DSP MAC operations in one instruction cycle, making single-pole IIR filters, Park/Clarke transforms, and space-vector modulation feasible at low PWM frequencies. The instruction set is fully upward-compatible with PIC24F/H devices, easing migration to higher-pin-count motor-control families such as dsPIC33EP and dsPIC33CH.
Typical applications include BLDC and PMSM sensorless or sensored motor drives, low-power field-oriented control (FOC) of three-phase induction motors, DC-DC converters, digital Class-D audio amplifiers, and automotive body-comfort motor control such as HVAC blowers and coolant pumps. The extended temperature range and AEC-Q100 qualification make it well-suited for under-hood automotive ECUs and industrial servo drives operating from 24 V or 48 V buses.
When designing with this device, allocate the analog supply (AVDD) pins with adequate decoupling and route the motor-current-sense traces differentially to the on-chip op-amp comparator inputs. The PPS unit can be configured post-reset to remap peripheral functions, but pin assignments for analog peripherals and the dedicated PWM outputs are fixed per the datasheet pinout.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternativas drop-in para DSPIC33FJ12MC202-E/SS — 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 DSPIC33FJ12MC202-E/SS (mesmo formato e footprint) — diferindo em Package, ADC, Core Architecture, Operating Temperature, Maximum CPU Speed.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
DSPIC33FJ12MC201-E/SS
✅ Drop-In✓ Em estoque
$3.42 / unidade
Ver ficha técnica →DSPIC33FJ12GP202-I/SS
✅ Drop-In✓ Em estoque
$3.45 / unidade
Ver ficha técnica →DSPIC33FJ12MC201T-I/SS
✅ Drop-In✓ Em estoque
$2.46 / unidade
Ver ficha técnica →DSPIC33FJ12MC201-I/SS
✅ Drop-In✓ Em estoque
$2.46 / unidade
Ver ficha técnica →DSPIC33FJ12GP202-I/SP
✅ Drop-In✓ Em estoque
$2.69 / unidade
Ver ficha técnica →DSPIC33FJ12MC202-E/SS Classificações máximas e características elétricas
| Core Architecture | dsPIC33F 16-bit DSC (Harvard) |
| Maximum CPU Speed | 40 MIPS (40 MHz) |
| Program Memory (Flash) | 12 KB |
| Data RAM | 1 KB |
| Operating Voltage | 3.0 V to 3.6 V |
| Motor Control PWM Channels | 6 outputs |
| PWM Resolution | Up to 16-bit |
| ADC | 10-bit, up to 500 ksps |
| ADC Channels | Up to 8 |
| 16-bit Timers | 5 |
| DMA Channels | 4 |
| Peripheral Pin Select (PPS) | Yes |
| Temperatura de operação | -40 C to +125 C (E grade) |
| AEC-Q100 | Qualified |
| Encapsulamento | 28-pin SSOP (0.65 mm pitch) |
| Tipo de montagem | Surface Mount |
Configuração de pinos do DSPIC33FJ12MC202-E/SS
| Pino 1 | MCLR — Master Clear reset input (active low) |
| Pino 2 | PWM1L — PWM output 1, low side |
| Pino 3 | PWM1H — PWM output 1, high side |
| Pino 4 | PWM2L/PWM3L — PWM output 2 or 3, low side (PPS) |
| Pino 5 | PWM2H/PWM3H — PWM output 2 or 3, high side (PPS) |
| Pino 6 | PWM4L — PWM output 4, low side |
| Pino 7 | PWM4H — PWM output 4, high side |
| Pino 8 | VSS — Ground reference |
| Pino 9 | OSC1/CLKI — Crystal oscillator input or external clock |
| Pino 10 | OSC2/CLKO — Crystal oscillator output |
| Pino 11 | AN0/CMP1 — Analog input 0 / comparator 1 input |
| Pino 12 | AN1/CMP2 — Analog input 1 / comparator 2 input |
| Pino 13 | AN2/CMP3 — Analog input 2 / comparator 3 input |
| Pino 14 | AN3 — Analog input 3 |
| Pino 15 | AVDD — Analog supply voltage |
| Pino 16 | AVSS — Analog ground reference |
| Pino 17 | VDD — Digital supply voltage (3.0-3.6 V) |
| Pino 18 | TDO — JTAG test data output |
| Pino 19 | TCK — JTAG test clock input |
| Pino 20 | PWM5L — PWM output 5, low side |
| Pino 21 | PWM5H — PWM output 5, high side |
| Pino 22 | PWM6L — PWM output 6, low side |
| Pino 23 | PWM6H — PWM output 6, high side |
| Pino 24 | RP0 — Remappable I/O pin 0 |
| Pino 25 | RP1 — Remappable I/O pin 1 |
| Pino 26 | RP2 — Remappable I/O pin 2 |
| Pino 27 | RP3 — Remappable I/O pin 3 |
| Pino 28 | VSS — Ground reference |
Aplicações típicas
DSPIC33FJ12MC202-E/SS é adequado para 6 aplicaçãos: Sensorless BLDC Motor Drive, PMSM Field-Oriented Control (FOC), Automotive HVAC Blower Motor Controller, Digital Class-D Audio Amplifier, Industrial Servo Drive (Low Power), DC-DC Converter Digital Control.
Sensorless BLDC Motor Drive
The DSPIC33FJ12MC202-E/SS is a strong fit for sensorless BLDC motor drives because its 40 MIPS 16-bit dsPIC33F core executes zero-crossing back-EMF detection algorithms within a single 50 us PWM cycle, while the integrated 6-output Motor Control PWM generates the three-phase gate-drive signals for a 6-MOSFET inverter. The on-chip op-amp comparators interface directly to current-sense shunts, eliminating external instrumentation amplifiers and reducing BOM cost. The 10-bit 500 ksps ADC samples the back-EMF voltage in the PWM off-time without dedicated sample-and-hold external hardware. Designers benefit from the 7.5 ns PWM dead-time resolution, which prevents shoot-through in the inverter switches.
Recomendado
PMSM Field-Oriented Control (FOC)
The DSPIC33FJ12MC202-E/SS supports sensorless and sensored FOC of permanent magnet synchronous motors in low-power applications such as HVAC blowers, water pumps, and small appliance compressors. Its 16-bit MAC executes Park and Clarke transforms in under 5 us, leaving sufficient CPU headroom for PI current loops running at 20 kHz PWM. The PPS unit allows repositioning of encoder QEP inputs on any digital pin, simplifying PCB routing when the FOC control board is constrained by inverter layout. Note that the 10-bit ADC limits current-loop precision at low torque - consider the DSPIC33FJ12MC201-E/SS drop-in alternative for higher-precision 12-bit conversion in tight-tolerance applications.
Recomendado
Automotive HVAC Blower Motor Controller
The DSPIC33FJ12MC202-E/SS AEC-Q100 qualification and -40 C to +125 C extended temperature range make it well-suited for under-hood automotive HVAC blower control. Its 6-output PWM directly drives a three-phase BLDC blower motor, while the dedicated op-amp comparator inputs handle current-sense feedback for stall detection. The DSPIC33F 16-bit architecture with C-compiler-friendly instruction set simplifies software development against ISO 26262 ASIL-B functional-safety targets, and the device's automotive pedigree gives OEMs confidence in long-term availability. Pair with an automotive-qualified LIN or CAN transceiver for body-network integration.
Recomendado
Digital Class-D Audio Amplifier
The DSPIC33FJ12MC202-E/SS is a low-cost platform for digital Class-D amplifier prototypes because its 40 MIPS DSP engine can execute speaker-compensation IIR filters and dynamic-range compression in real time at 48 kHz sample rates. The 6-output PWM generates complementary half-bridge drive signals for a full H-bridge output stage, supporting up to 100 W into 4 ohm loads. Note that production Class-D audio designs typically migrate to the dsPIC33EP family for higher PWM resolution and lower jitter; the 12MC202 is best positioned for development boards and low-end consumer audio applications.
Recomendado
Industrial Servo Drive (Low Power)
The DSPIC33FJ12MC202-E/SS supports low-power industrial servo drives in the 100-500 W range. Its DSP MAC executes PID position, velocity, and current loops within a single 100 us cycle, while the integrated QEI (Quadrature Encoder Interface) reads incremental encoders without external counters. Industrial users benefit from the 12 KB Flash, which comfortably holds vector-control and field-weakening code, and from the extended temperature range that allows deployment in factory-floor enclosures without active cooling. For higher-power servos requiring more PWM channels or faster ADCs, migrate to dsPIC33EP MC family.
Recomendado
DC-DC Converter Digital Control
The DSPIC33FJ12MC202-E/SS can serve as the digital controller in digitally-controlled DC-DC converters up to 500 kHz switching frequency. Its 10-bit ADC samples the output voltage and current at 500 ksps, while its high-resolution PWM generates the buck or boost gate-drive signal with sub-1% duty-cycle resolution. The 16-bit DSP engine executes digital voltage-mode and peak-current-mode control loops in under 5 us, enabling fast transient response. Industrial-grade variants in this family are AEC-Q100 qualified, suitable for automotive 12 V to 48 V power-conversion modules.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para DSPIC33FJ12MC202-E/SS — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | DSPIC33FJ12MC201-E/SS | DSPIC33FJ12GP202-I/SS | DSPIC33FJ12MC201T-I/SS |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-28 | SSOP-28 (same) | SSOP-28 (same) | SSOP-28 (same) |
| Core Architecture | dsPIC33F 16-bit DSC | dsPIC33F 16-bit DSC (same) | dsPIC33F 16-bit DSC (same) | dsPIC33F 16-bit DSC (same) |
| Maximum CPU Speed | 40 MIPS (40 MHz) | 40 MIPS (same) | 40 MIPS (same) | 40 MIPS (same) |
| Program Memory (Flash) | 12 KB | 12 KB (same) | 12 KB (same) | 12 KB (same) |
| RAM | 1 KB | 1 KB (same) | 1 KB (same) | 1 KB (same) |
| ADC Resolution | 10-bit | 12-bit (higher precision) | 10-bit (same) | 12-bit (higher precision) |
| PWM Channels | 6 outputs | 4 outputs (less) | general-purpose (no MC PWM) | 4 outputs (less) |
| Motor-Control PWM | Yes (dedicated MC PWM) | Yes (dedicated MC PWM) | No (general-purpose variant) | Yes (dedicated MC PWM) |
| Temperature Grade | -40 C to +125 C (E) | -40 C to +125 C (E) | -40 C to +85 C (I) | -40 C to +85 C (I) |
| AEC-Q100 | Qualified | Qualified | Not qualified (industrial only) | Not qualified (industrial only) |
Principais diferenciais
- 6 dedicated motor-control PWM outputs (vs 4 on the 201 variant) (vs DSPIC33FJ12MC201-E/SS)
- Integrated op-amp comparators for direct current-sense interface (vs DSPIC33FJ12GP202-I/SS)
- AEC-Q100 automotive qualification with -40 C to +125 C temperature range (vs DSPIC33FJ12MC201T-I/SS)
- Peripheral Pin Select (PPS) for flexible digital I/O routing (vs DSPIC33FJ12MC201T-I/SS)
Notas de projeto
The DSPIC33FJ12MC202-E/SS requires a single 3.3 V supply for both AVDD and VDD. Place a 10 uF bulk tantalum or ceramic capacitor close to each AVDD/AVSS pair and a 0.1 uF ceramic decoupling on every VDD/VSS pair. The on-chip voltage regulator generates 1.8 V for the core internally; do not connect external 1.8 V loads to the internal regulator output. Estimated power consumption at 40 MIPS core speed and full PWM activity is approximately 30-50 mA; verify with a worst-case workload during board bring-up.
At 40 MIPS full CPU load with all peripherals active, the SSOP-28 package dissipates approximately 0.2 W. The -40 C to +125 C extended temperature range requires the PCB thermal pad to be soldered to a copper pour of at least 0.25 square inch to keep junction temperature within 125 C in sealed automotive enclosures. The SSOP-28 has higher theta_JA than QFN-28 variants (typically 80 C/W vs 35 C/W at minimum footprint); for high-temperature under-hood applications, consider the QFN-28 alternative or add an external heatsink bonded to the package body.
Route the analog inputs AN0-AN3 (with on-chip comparator inputs) as short differential pairs from the current-sense resistors, using a ground guard trace to isolate them from PWM switching noise. Keep the crystal oscillator traces short and symmetric, with a local ground pour. The PWM outputs should be routed away from analog signals and, when driving power MOSFETs, use gate-drive resistors to control rise-time and limit EMI. According to Microchip AN1078, place at least 4-layer PCB stack-up with a dedicated ground plane beneath the DSC for best noise immunity in motor-control applications.
Common pitfalls when designing with the DSPIC33FJ12MC202-E/SS: (1) forgetting that the analog pins AN0-AN3 are shared with on-chip op-amp comparator inputs - if the comparator is enabled, these pins must not be remapped via PPS; (2) using the wrong PPS register mapping at runtime, which silently routes peripheral signals to incorrect pins; (3) leaving the JTAG TCK pin floating, which can cause unintended device reset during in-circuit programming; (4) failing to clear the PWM fault latch after a current-overload event, which holds the motor in idle until software clears the fault - this is by design for safety.
Place the DSPIC33FJ12MC202-E/SS near the current-sense resistors and the gate-driver inputs to minimize trace inductance on the analog feedback path. According to Microchip AN1078 sensorless BLDC reference design, the PWM-to-current-sense sample timing must be carefully synchronized in software to avoid sampling during switching transients - this typically requires a 1-2 us delay after the PWM edge before triggering the ADC. PPS pin selection for QEI inputs should be finalized at hardware design time because re-routing via software affects the encoder timing budget.
Informações de conformidade
AEC-Q100 qualified per Microchip product family documentation. RoHS and lead-free per Microchip packaging specifications. Halogen-free status not explicitly stated in the available web data - confirm with Microchip environmental compliance documentation if required for your application.
