DRV8256E/DRV8256P H-Bridge Motor Drivers

Texas Instruments DRV8256E/DRV8256P H-Bridge Motor Drivers are single H-bridge motor drivers for a wide variety of industrial applications. The devices integrate an N-channel H-bridge, charge pump regulator, current sensing and regulation, and protection circuitry. Integrated current sensing allows the driver to regulate the motor inrush current during start-up and high load events. A current limit can be set with an adjustable external voltage reference. The integrated current sensing uses an internal current mirror architecture, removing the need for a large power shunt resistor, saving board area, and reducing system cost. A low-power sleep mode is provided to achieve an ultra-low quiescent current draw by shutting down most of the internal circuitry. Internal protection features are provided for supply undervoltage lockout (UVLO), charge pump undervoltage (CPUV), output overcurrent (OCP), and device overtemperature (TSD). Fault conditions in the Texas Instruments DRV8256E/DRV8256P are indicated on nFAULT.