DRV8311 3-Phase Brushless-DC Motor Driver Texas Instruments DRV8311 3-Phase Brushless-DC Motor Driver provides three integrated MOSFET half-H-bridges for driving a three-phase brushless DC (BLDC) motor for 5V, 9V, 12V, or 18V DC rails or 1S to 4S battery-powered applications. The device integrates three current-sense amplifiers (CSA) with an integrated current-sense for sensing the three-phase currents of BLDC motors to achieve optimum FOC and current-control system implementation.