IRMCF371
IRMCF371 is Sensorless Motor Controller manufactured by International Rectifier.
Features
- MCETM (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
60 MHz
Maximum internal clock (SYSCLK) frequency 128 MHz
Sensorless control putation time MCETM putation data range
11 μsec typ 16 bit signed
Program RAM loaded from external EEPROM 48K bytes
Data RAM
8K bytes
Gate Kill latency (digital filtered)
2 μsec
PWM carrier frequency counter
16 bits/ SYSCLK
A/D input channels
A/D converter resolution
12 bits
A/D converter conversion speed
2 μsec
8051 instruction execution speed
2 SYSCLK
Analog output (PWM)...