DRV10866

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community DRV10866 SBVS206A – NOVEMBER 2012 – REVISED MARCH 2015 DRV10866 5-V, 3-Phase, Sensorless BLDC Motor Driver 1 Features 1 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 RDSOn 900 mΩ Sensorless Proprietary BMEF Control Scheme 150° Commutation Synchronous Rectification PWM Operation Selectable FG and ½ FG Open-Drain Output PWMIN Input from 15 kHz to 50 kHz Lock Detection Voltage Surge Protection UVLO Thermal Shutdown 2 Applications Notebook CPU Fans Game Station CPU Fans ASIC Cooling Fans 3 Description 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 ½ 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°...