DRV8849 Dual Stepper Motor Driver Texas Instruments DRV8849 Dual Stepper Motor Driver is designed for industrial and consumer applications. The device is fully integrated with four N-channel power MOSFET H-bridge drivers, one micro-stepping indexer for each stepper, and integrated current sensing. The DRV8849 can drive up to 1.5A full-scale output current (dependent on PCB design).