AH291 Datasheet | Unknown Manufacturer

Low Voltage Hall-Effect Smart Fan Motor Controller - Features - On chip Hall sensor - Rotor-locked shutdown - Automatically restart - Built-in Zener protection for output driver - Operating voltage: 1.8V~5.75 V - Output current: IO( AVE ) = 400 mA - General 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. To avoid coil burning, rotor-lock shutdown detection circuit shut down the output driver if the rotor is blocked and then the automatic recovery circuit will try to restart the motor. These protecting actions...