Datasheet Details
| Part number | A89332 |
|---|---|
| Manufacturer | Allegro MicroSystems |
| File Size | 362.23 KB |
| Description | Three-Phase Sensorless Fan Controller |
| Datasheet |
 A89332 Datasheet
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General Description
The A89332 three-phase motor controller incorporates a sensorless sinusoidal drive to minimize vibration for highpower, high-speed server fans.
Sensorless control eliminates the requirement for Hall sensors for server fan applications.
Key Features
- Closed-loop speed control.
- Power loss brake.
- Fault mode brake.
- Configurable rotor detect (RD) or frequency generator (FG) output.
- Speed curve configuration via EEPROM.
- I2C serial port.
- Sinusoidal modulation for reduced audible noise and low vibration.
- Sensorless (no Hall sensors required).
- Trapezoidal drive option for high speed.
- Adjustable gate drive option.
- Minimal external components.