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A89332

Part Number	A89332
Manufacturer	Allegro
Description	Three-Phase Sensorless Fan Controller
Published	Dec 10, 2023
Detailed Description	A89332 Three-Phase Sensorless Fan Controller FEATURES AND BENEFITS • Closed-loop speed control • Power loss brake • Fa...
Datasheet	A89332 PDF File

Overview

A89332 Three-Phase Sensorless Fan Controller FEATURES AND BENEFITS • 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 • PWM duty cycle speed input • FG speed output • Lock detection • Soft start • Shorted output protection (overcurrent protection, OCP) APPLICATIONS • High-speed 12 V server cooling fans • Industrial and consumer blowers and fans ...

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