AH285 Datasheet and Specifications PDF

AH285 is a monolithic fan motor controller with Hall sensor’s capability. It contains two complementary open-drain transistors as motor coil drivers, automatic lock current shutdown, and recovery prot.

- On chip Hall sensor - Rotor-locked shutdown - Automatically restart - Frequency generator (FG) output - Buil t-in Zener protection for output driver - Operating voltage: 3.8V~20V - Output current: IO(AVE) = 500mA for SIP-5/SOT89-5 - Output current: IO(AVE) = 400mA for SOT23-5 - Package: SIP-5L, SO.

Pin Assignments The AH285 is a single-chip solution for driving two-coil brushless direct current (BLDC) fans and motors. The device includes a Hall-effect sensor, dynamic offset correction and two .

Applications
* Single-chip solution
* Operating Voltage: 3.8V to 20V
* Built-in Hall sensor and input amplifier
* Tachometer (FG) output
* Rotor Lock Protection (Lock detection, output shutdown and automatic re-start)
* Built-in Zener protection for output driver
* Average output current up to 500.