Brushless DC Drivers

Automotive Three Phase Sinusoidal Fan Driver

A4946

The A4946 is a low-noise, 3-phase motor driver with an integrated power bridge for automotive fans and blowers. It reduces audible noise and vibration through sinusoidal PWM excitation, controls current via PWM, and uses Hall effect elements for rotor position.

Product Details

Top Features

  • 180° sinusoidal drive - low audible noise and vibration
  • Motor position using external Hall sensors
  • AEC-Q100 Qualified - suitable for automotive applications

Part Number Specifications and Availability

Design Tools