AH291 Description
AH291 is a monolithic fan motor controller with Hall sensor’s capability. It contains two plementary open-collector drivers for motor’s coil driving, automatic lock shutdown and restart function relatively. Rotor-lock shutdown detection circuit turns off the output driver when the rotor is blocked to avoid coil overheat.
AH291 Key Features
- On Chip Hall Sensor Rotor-Locked Shutdown Automatically Restart Built-in Zener Protection for Output Driver Operating Vo