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AH5794 - SINGLE PHASE HALL EFFECT LATCH FAN MOTOR DRIVER

Datasheet Summary

Description

The AH5794 is a single chip solution for driving single-coil brushless direct current (BLDC) fans and motors.

The integrated full-bridge driver output stage uses soft switching to minimize audible switching noise and electromagnetic interference (EMI) providing a low noise solution.

Features

  • Supports single-coil full-wave BLDC fan drivers Built-in Hall sensor and input amplifier Operating voltage: 1.8V to 6V VDD voltage speed control Soft switching for low noise DC fan motor.

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Datasheet Details

Part number AH5794
Manufacturer DIODES
File Size 289.44 KB
Description SINGLE PHASE HALL EFFECT LATCH FAN MOTOR DRIVER
Datasheet download datasheet AH5794 Datasheet
Additional preview pages of the AH5794 datasheet.

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Full PDF Text Transcription

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AH5794 SINGLE PHASE HALL EFFECT LATCH FAN MOTOR DRIVER Description The AH5794 is a single chip solution for driving single-coil brushless direct current (BLDC) fans and motors. The integrated full-bridge driver output stage uses soft switching to minimize audible switching noise and electromagnetic interference (EMI) providing a low noise solution. Low operating voltage down to 1.8V allows motor speed to be controlled by varying the supply voltage. Pin Assignments (Top View) FG VSS O2 1 2 3 TSOT26 6 5 4 NC VDD O1 NEW PRODUCT To help protect the motor coil, the AH5794 provides Rotor Lock Protection which shuts down the output drive if rotor lock is detected. The device automatically re-starts when the rotor lock is removed.
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