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