RMCF371 Datasheet | International Rectifier

Features - - - - - - - - - - - - - - - - MCE (Motion Control Engine) - Hardware based putation engine for high efficiency sinusoidal sensorless control of permanent magnet AC motor Supports both interior and surface permanent magnet motors Built-in hardware peripheral for single shunt current feedback reconstruction No external current or voltage sensing operational amplifier required Three/two-phase Space Vector PWM Analog output (PWM) Embedded 8-bit high speed microcontroller (8051) for flexible I/O and man-machine control JTAG programming port for emulation/debugger Serial munication interface (UART) I2C/SPI serial interface Watchdog timer with independent analog clock Three general purpose timers/counters Two special timers: periodic timer, capture timer External EEPROM and internal RAM facilitate debugging and code development Pin patible with IRMCK371, OTP-ROM version 1.8V/3.3V CMOS Product Summary Maximum crystal frequency Maximum internal clock (SYSCLK) frequency Sensorless control putation time MCE 60 MHz 128MHz 11 μsec typ 16 bit signed 8K bytes 2 μsec 16 bits/ SYSCLK 4 12 bits 2 μsec 2 SYSCLK 8 bits 57.6K bps 13 QFP48 putation data range Program RAM loaded from external EEPROM 48K bytes Data RAM Gate Kill latency (digital filtered) PWM carrier frequency counter A/D input channels A/D converter resolution A/D converter conversion speed 8051 instruction execution speed Analog output (PWM) resolution UART baud rate (typ) Number of I/O (max) Package (lead-free) Description IRMCF371 is a high performance RAM based motion control IC designed primarily for appliance applications. IRMCF371 is designed to achieve low cost and high performance control solutions for advanced inverterized appliance motor control. IRMCF371 contains two putation engines. One is Motion Control Engine (MCETM) for sensorless control of permanent magnet motors; the other is an 8-bit high-speed microcontroller (8051). Both putation engines are integrated into one monolithic chip....