A4964 Description
The A4964 is a three-phase, sensorless, brushless DC (BLDC) motor controller for use with external N-channel power MOSFETs and is specifically designed for automotive applications. It is designed to provide the motor control functions in a system where a small microcontroller provides the munication interface to a central ECU and intelligent fault and status handling. The A4964 provides the supply and watchdog for...
A4964 Key Features
- Three-phase sensorless BLDC motor control FET driver
- Three-phase sinusoidal drive with soft start
- Sensorless start-up and mutation
- Windmill detection and synchronization
- Bootstrap gate drive for N-channel MOSFET bridge
- 5.5 to 50 V supply range
- SPI-patible interface
- Programmable control modes: speed, voltage, current
- Peak current limiting
- Control via SPI or PWM