EmbeddedRelated.com
    Parts    DSPIC33FJ12MC202-I/SO
DSPIC33FJ12MC202-I/SO

MCHPDSPIC33FJ12MC202-I/SO

Microchip Technology
dsPIC dsPIC™ 33F Microcontroller IC 16-Bit 40 MIPs 12KB (12K x 8) FLASH 28-SOIC
NRND690 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The DSPIC33FJ12MC202-I/SO is a 16-bit Digital Signal Controller (DSC) from Microchip, specifically engineered for high-performance motor control applications. It combines the control features of a microcontroller with the signal processing capabilities of a DSP, delivering 40 MIPS of throughput at 3.0V to 3.6V. This device is optimized for sensorless motor control and real-time power conversion in compact 28-pin SOIC footprints.

Why Choose This Part

This DSC provides a specialized Motor Control PWM peripheral and a Quadrature Encoder Interface (QEI), which are essential for precise motion control. It features 5V tolerant I/O pins, allowing for easier interfacing with legacy 5V sensors and drivers despite its 3.3V core. The Harvard architecture and DSP instructions enable single-cycle multiply-accumulate operations, making it significantly faster than standard microcontrollers for mathematical control loops.

Applications

Brushless DC (BLDC) Motor Control
Utilizing the dedicated motor control PWM peripherals and high-speed ADC for efficient commutation.
Permanent Magnet Synchronous Motors (PMSM)
Implementing Field Oriented Control (FOC) algorithms using the integrated DSP instruction set.
AC Induction Motor (ACIM) Drives
Managing variable frequency drives and closed-loop speed control in industrial automation.
Digital Power Conversion
Controlling DC-DC converters and uninterruptible power supplies that require fast PID loops.

Key Specifications

Speed 40 MIPs
RAM Size 1K x 8
Core Size 16-Bit
Peripherals Brown-out Detect/Reset, Motor Control PWM, QEI, POR, PWM, WDT
Connectivity I2C, IrDA, SPI, UART/USART
Mounting Type Surface Mount
Number of I/O 21
Core Processor dsPIC
Package / Case 28-SOIC (0.295", 7.50mm Width)
Data Converters A/D 6x10b/12b
Oscillator Type Internal
Program Memory Size 12KB (12K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 28-SOIC
Voltage - Supply (Vcc/Vdd) 3V ~ 3.6V

Getting Started

Developers should use the MPLAB X IDE and the MPLAB XC16 compiler for software development. Hardware debugging is typically performed using the PICkit 4 or MPLAB ICD 4 via the JTAG or ICSP interface. Microchip provides extensive motor control libraries and code examples through the MPLAB Harmony framework to accelerate the implementation of FOC and other control algorithms.