IRMCF311

Data Sheet No. PD60312B 1/02/2014 IRMCF311 Dual Channel Sensorless Motor Control IC for Appliances Features  MCETM (Motion Control Engine) - Hardware based computation engine for high efficiency sinusoidal sensorless control of permanent magnet AC motor  Integrated Power Factor Correction control  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  Dual channel three/two-phase Space Vector PWM  Two-channel analog output (PWM)  Embedded 8-bit high speed microcontroller (8051) for flexible I/O and man-machine control  JTAG programming port for emulation/debugger  Two serial communication interface (UART)  I2C/SPI serial interface  Watchdog timer with independent analog clock  Three general purpose timers  Two special timers: periodic timer, capture timer  External EEPROM and internal RAM facilitate debugging and code development  Pin compatible with IRMCK311, OTP-ROM version  1.8V/3.3V CMOS Product Summary Maximum crystal frequency 60 MHz Maximum internal clock (SYSCLK) frequency 128 MHz Sensorless control computation time MCETM computation data range 11 μsec typ 16 bit signed Program RAM loaded from external EEPROM 48K bytes Data RAM 8K bytes GateKill latency (digital filtered) 2 μsec PWM carrier frequency counter 16 bits/ SYSCLK A/D input channels 6 A/D converter resolution 12 bits A/...