Description
IRMCF171 is a high performance flash memory based motion control IC designed primarily for appliance applications. IRMCF171 is designed to achieve low cost yet high performance control solutions for advanced inverterized appliance motor control. IRMCF171 contains two computation engines integrated into one monolithic chip. One is the Flexible Motion Control Engine (MCETM) for sensorless control of permanent magnet or induction motors; the other is an 8-bit high-speed microcontroller (8051). The user can program a motion control algorithm by connecting control elements using a graphic compiler. Key components of the complex sensorless control algorithms, such as the Angle Estimator, are provided as complete pre-defined control blocks.

Features
• MCETM (Flexible Motion Control Engine) - Dedicated computation engine for high efficiency sinusoidal sensorless motor control
• Built-in hardware peripheral for single or two shunt current feedback reconstruction and analog circuits
• Supports induction machine and both interior and surface permanent magnet motor sensorless control
• Loss minimization 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
• Serial communication interface (UART)
• I2C/SPI serial interface
• Three general purpose timers/counters
• Two special timers: periodic timer, capture timer
• Watchdog timer with independent internal clock
• Internal 64 Kbyte flash memory
• 5V tolerant I/O
• 3.3V single supply