Texas Instruments expands its growing family of low-voltage DRV8x motor drivers with the small1.8-A brushed DC motor driver in an 8-pin, 2- x 2-mm WSON package. The DRV8837 improves thermal performance in battery-powered or low-voltage motion control applications by reducing RDS(ON). Separate logic and motor supplies improve performance in battery powered applications during start up and stall conditions. 1.8-V to 11-V operating range supports up to 6-stack alkaline or 2-stack Li-ion battery pack applications. Over-current, over-temperature, shoot-through and under-voltage protection increase system reliability and reduce design complexity.
The DRV8837 evaluation module is available and features on-board speed, sleep and direction controls, micro-USB connection for easy evaluation/power-up, on-board MSP430 MCU to fully evaluate DRV8837 performance with the added flexibility to use an external MCU, easy access to critical control and test points.
DRV8x motor drivers integrate many of the functional blocks needed in a motor system, such as gate drive circuitry, MOSFETs, protection circuitry and current regulation circuitry. DRV8x motor drivers make it easy to drive a wide range of stepper, brushed DC and brushless DC motors in portable and wired applications, such as printers, video surveillance, fans, pumps, valves, power tools, textile manufacturing machines, e-locks and consumer electronics.
