AH2985 Datasheet (Diodes) - TWO PHASE HALL-EFFECT SMART FAN MOTOR CONTROLLER

AH2985, TWO PHASE HALL-EFFECT SMART FAN MOTOR CONTROLLER

The AH2985 is a single-chip solution for driving two-coil brushless direct current (BLDC) fans and motors.

The device includes a Halleffect sensor, dynamic offset correction and two complementary open-drain output drivers with internal Zener diode protection.

It is optimized for low start-up voltage

AH2985 Features

* Single-Chip Solution

* Operating Voltage: 2.5V to 15V

* Built-in Hall Sensor and Input Amplifier

* Rotor Lock Protection (Lock Detection, Output Shutdown and Automatic re-Start)

* Built-in Reverse Voltage Protection Diode

* Built-in Zener Protection for Output Drivers