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AH5772 - SINGLE PHASE MOTOR DRIVER

General Description

The AH5772 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.

Key Features

  • Supports Single-phase Full Wave BLDC Fan/Motor Drive.
  • Wide Operating Voltage Range: 2.4V to 18V.
  • Built-in High Sensitivity Hall Effect Sensor.
  • Very Low Temperature and Voltage Coefficient of the Magnetic Operating Switch Points.
  • Built-in H-Bridge with Low RDSON Resistance.
  • Soft Switching for Low Noise DC Fan Motor.

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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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NEW PRODUCT AH5772 SINGLE PHASE MOTOR DRIVER WITH INTERNAL HALL EFFECT LATCH SENSOR Description The AH5772 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. Pin Assignments (Front View) To simplify system circuit and minimize external components, the device integrates a stable high sensitivity Hall-Effect sensor, voltage and temperature compensated internal references, amplifiers and the output H-bridge power switches with low RDSON. To help protect the motor coil, the AH5772 provides Rotor Lock Protection which shuts down the output drive if rotor lock is detected.