The DRV10983PWP is a 3-phase sensorless brushless DC Motor Controller with integrated power MOSFETs, which can provide continuous drive current up to 2A. The device is specifically designed for cost-sensitive, low-noise/low external component count applications. The motor controller uses a proprietary sensor-less control scheme to provide continuous sinusoidal drive, which significantly reduces the pure tone acoustics that typically occur as a result of commutation. The interface to the device is designed to be simple and flexible. The motor can be controlled directly through PWM, analogue or I2C inputs. Motor speed feedback is available through either the FG pin or I2C. The motor controller features an integrated buck/linear regulator to efficiently step down the supply voltage to either 5 or 3.3V for powering both internal and external circuits. The device is available in either a sleep mode or a standby mode version to conserve power when the motor is not running.
Sensor-less proprietary back electromotive force (BEMF) control scheme
