Brushless DC Drivers

40V Three-Phase Sensorless BLDC Fan Driver IC

A89347

The A89347 is a three-phase, sensorless fan driver IC ideal for whisper-quiet operation in automotive applications such as seat cooling fans, HVAC blowers, and other thermal management systems. The device includes closed-loop speed control with sinusoidal drive to minimize vibration and noise, and  integrates EEPROM customization to enable optimized performance and efficiency.

Product Details

Top Features

  • Sinusoidal modulation for reduced audible noise and low vibration
  • Sensorless (no Hall sensors required) 
  • Speed curve configuration via EEPROM
  • PWM or analog speed input
  • Low RDS(ON) power MOSFETs
  • AEC-Q100 qualified

Part Number Specifications and Availability

Design Tools