OCH2981 Datasheet Two Phase Hall-effect Smart Fan Motor Controller

Manufacturer: Orient Chip

Overview: OCH2981 Two Phase Hall-Effect Smart Fan Motor Controller ◼ General.

Datasheet Details

Part number	OCH2981
Manufacturer	Orient Chip
File Size	194.28 KB
Description	Two Phase Hall-Effect Smart Fan Motor Controller
Datasheet	OCH2981-OrientChip.pdf

General Description

The OCH2981 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 complementary open-drain output drivers with internal Zener diode protection.

It is optimized for low start-up voltage.

Key Features

s.
Single-Chip solution.
High sensitivity Hall-effect Sensor.
Operating Voltage: 3.5V to 28V.
Average output current up to 300mA.
Built-in Hall sensor and input amplifier.
Rotor Lock Protection (Lock detection, output shutdown and automatic re-start).
Built-in reverse.

OCH2981 Distributor

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