DRV8317 Three-Phase Motor Driver Texas Instruments DRV8317 Three-Phase Motor Driver provides three integrated MOSFET half-bridges for driving three-phase brushless DC (BLDC) motors with 5V, 9V, 12V, or 18V DC rails or 2s to 4s batteries. The device provides integrated three-phase current sensing, eliminating the need for external sense resistors. DRV8317 has an integrated LDO that provides a regulated 3.3V rail capable of delivering up to 80mA for external loads like MCU, logic circuits, hall sensors, etc.