The A5947 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 A5947-B for automotive applications in TSSOP-20 package the A5947G for industrial use cases (in TSSOP-20 and QFN-28 packages).
Product Details
Product Details
Top Features
- AEC-Q100 qualified
- Speed curve configuration via EEPROM
- I2C serial port
- Sinusoidal modulation for reduced audible noise and low vibration
- Sensorless (no Hall sensors required)
- Low RDS(ON) power MOSFETs
- 3.3 V / 20 mA linear regulator
- PWM or analog speed input
- FG speed output
- Slew rate control
- Lock detection Soft start
- Low power standby mode
- Overcurrent protection
- Overvoltage protection
