The A89347 family 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.
The family includes the AEC-Q100 qualified A89347 for automotive applications in TSSOP-20 package the A89347G for industrial use cases (in TSSOP-20 and QFN-28 packages).
Product Details
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
The All-in-One IC for Whisper-Quiet Automotive Fans
Achieve quiet, efficient performance with the A89347, a highly integrated three-phase sensorless fan driver for automotive systems. Its sinusoidal drive reduces noise and extends battery life, making it ideal for seat and battery cooling. The compact, all-in-one design eliminates the need for external Hall sensors and allows for full performance customization via on-chip EEPROM, simplifying your design and maximizing efficiency.
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