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AH287 - HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER

General Description

On Chip Hall Sensor Rotor-Locked Shutdown Automatically Restart Built-in Zener Protection for Output Driver Operating Voltage: 3.8V~28V Output Current: IO(AVE) = 400mA Lead Free Packages: SIP-4L and SOT89-5L (Note 1) SI

Key Features

  • AH287 HIGH.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Features AH287 HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER General Description • On Chip Hall Sensor • Rotor-Locked Shutdown • Automatically Restart • Built-in Zener Protection for Output Driver • Operating Voltage: 3.8V~28V • Output Current: IO(AVE) = 400mA • Lead Free Packages: SIP-4L and SOT89-5L (Note 1) • SIP-4L and SOT89-5L: Available in “Green” Molding Compound (No Br, Sb) • Lead Free Finish/ RoHS Compliant (Note 2) AH287 is a monolithic fan motor controller with Hall sensor’s capability. It contains two complementary open-drain drivers for motor’s coil driving, automatic lock shutdown and restart function relatively. Rotor-lock shutdown detection circuit turns off the output driver when the rotor is blocked to avoid coil overheat.