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AM9469 - LOW NOISE SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER

Datasheet Summary

Description

The AM9469 is a high performance, ultra-low noise single phase (single-coil) brushless direct current (BLDC) fan and motor driver.

Features

  • Single-Phase Full Wave BLDC Fan/Motor Drive with BTL Output (BTL Amplifier Gain = 49dB).
  • Low Noise Architecture.
  • Wide Operating Voltage Range: 2.4V to 18V.
  • PWM Speed Control with External PWM Input.
  • DC Voltage Speed Control by Adjusting VCONT and RMI Voltage.
  • Hall Bias Output: VHB = 1.25V.
  • Built-In Quick Start Circuit.
  • Lock Protection with Automatic Restart.
  • Frequency Generator (FG) Output.
  • Rotor Lock Detection (RD) Output.
  • Current Limit Ci.

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Datasheet preview – AM9469

Datasheet Details

Part number AM9469
Manufacturer DIODES
File Size 972.08 KB
Description LOW NOISE SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER
Datasheet download datasheet AM9469 Datasheet
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Full PDF Text Transcription

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Description Green AM9469 LOW NOISE SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER Pin Assignments The AM9469 is a high performance, ultra-low noise single phase (single-coil) brushless direct current (BLDC) fan and motor driver. The integrated full-bridge driver output stage uses BTL linear driver architecture to minimize audible switching noise and Electromagnetic Interference (EMI) providing a low noise solution. For system flexibility the motor speed can be controlled by either an external PWM signal or by a DC voltage or from a thermistor network. Based on the input signal, the AM9469 adjusts the output duty cycle.
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