3-Phase Sensorless Motor Driver 10-Pin WSON EP T/R

DRV10866 is a 3- phase, sensorless motor driver with integrated power MOSFETs with drive current capability up to 680-mA peak. DRV10866 is specifically designed for low noise and low external component count fan motor drive applications. DRV10866 has built-in overcurrent protection with no external current sense resistor needed. The synchronous rectification mode of operation achieves increased efficiency for motor driver applications. DRV10866 outputs either FG or 1/2 FG to indicate motor speed with open-drain output. A 150° sensorless BEMF control scheme is implemented for a 3-phase motor. DRV10866 is available in the thermally efficient 10-pin, 3-mm × 3-mm × 0.75-mm SON (DSC) package. The operating temperature is specified from –40°C to 125°C.

Input Voltage Range: 1.65 V to 5.5 V

Six Integrated MOSFETS With 680-mA Peak
Output Current

Ultralow Quiescent Current: 5 µA (Typical) in
Standby Mode

Total Driver H+L R_DSOn 900 mO

Sensorless Proprietary BMEF Control Scheme

150° Commutation

Synchronous Rectification PWM Operation

Selectable FG and 1/2 FG Open-Drain Output

PWM_IN Input from 15 kHz to 50 kHz

Lock Detection

Voltage Surge Protection

UVLO

Thermal Shutdown