Allegro MicroSystems A89347 Three-Phase Sensorless BLDC Fan Driver ICs
Allegro MicroSystems A89347 Three-Phase Sensorless BLDC Fan Driver ICs are three-phase, sensorless fan driver ICs for whisper-quiet operation in automotive applications, such as seat cooling fans, heating, ventilation, and air-conditioning (HVAC) blowers, and other thermal management systems. The Allegro A89347 includes closed-loop speed control with a sinusoidal drive to minimize vibration and noise. These fan driver ICs also integrate EEPROM customization to enable optimized performance and efficiency.
Features
- Sinusoidal modulation for reduced audible noise and low vibration
- Sensorless (no Hall sensors required)
- Speed curve configuration via EEPROM
- 20-lead TSSOP package with exposed thermal pad
- Pulse-width modulation (PWM) or analog speed input
- Low RDS(ON) power MOSFETs
- AEC-Q100 qualified
Applications
- HVAC blowers
- Pumps
- Cooling fans
- Other thermal management systems
- 12V/48V smart actuators
發佈日期: 2025-04-10
| 更新日期: 2025-11-17