AH287 is a monolithic fan motor controller with Hall sensor’s capability. It contains two complementary open-drain drivers for motor’s coil driving, automatic lock shutdown and restart function relatively.
The AH287 is a monolithic fan motor controller that integrates a Hall sensor, rotor‑locked shutdown detection, and automatic restart drivers. It provides built‑in Zener protection and can automatically recover the motor after a blockage is cleared.
The datasheet lists electrical specifications such as a 3.8‑28 V operating range, 400 mA maximum output current, and up to 300 mW power dissipation (SOT89‑5). It also includes magnetic characteristics, performance curves over temperature, and package dimensions for both SIP‑4L and SOT89‑5L versions.
| Supply Voltage (operating) | 3.8 V – 28 V |
|---|---|
| Operating Temperature Range | -40 °C to 100 °C |
| Storage Temperature Range | -55 °C to 150 °C |
| Magnetic Operate Point (Bop) Typical | 30 Gauss |
The controller operates from 3.8 V up to 28 V.
Yes, it has a rotor‑locked shutdown sensor capability.