IRMCK203

Data Sheet No. PD60225 revA IRMCK203 High Performance Sensorless Motion Control IC Features ! ! ! ! ! ! ! ! ! ! ! ! ! ! Complete Sensorless control IC for Permanent Magnet AC motors No phase voltage feedback sensing required Sinusoidal current waveform with Synchronously Rotating Frame closed loop current control High starting torque and smooth speed ramping Direct interface to IR2175 current sensing high voltage IC Auto Retry at startup with configurable starting torque Versatile loss minimization Space Vector PWM Serial communication interface (RS232C, RS422, SPI) 2 I C serial interface to 1k bit serial EEPROM for parameter storage for stand alone operation Phase loss/Overcurrent/Overvoltage protection 7-bit discrete I/O for sequencing and status monitor Integrated brake IGBT control for dc bus voltage limitation ServoDesigner TM Product Summary Max Clock input Sensorless control computation time Speed operating range (typical) Speed control resolution Adjustable current limit at start-up Programmable retry on start-up 33.3 MHz 10 µsec max 5% to 100% 15 bit full range 15 bit full range max 16 trials Over current, speed, phase loss, dc bus fault protection PWM carrier frequency IR2175 Current feedback data resolution Inverter leg current sensing (optional) RS232C speed Optional RS422 communication Max SPI Clock Package: QFP80 16 bit/33MHz 10bit 12bit up to 57.6 Kbps up to 1 Mbps 8 MHz tool for easy operation Parallel interface for microcontroller expansion Description ...