DRV8244-Q1 Automotive H-Bridge Driver

Texas Instruments' DRV8244-Q1 is a fully integrated H-bridge driver that is designed for a wide range of automotive applications. The device can be configured as a single full-bridge driver or as two independent half-bridge drivers. Designed in a BiCMOS high-power process technology node, this monolithic device comes in a power package and offers excellent power handling and thermal capability while providing a compact package size, ease of layout, EMI control, accurate current sense, robustness, and diagnostic capability. This driver has an identical pin function with scalable R_ON (current capability) to support different loads.

The device integrates an N-channel H-bridge, charge pump regulator, high-side current sensing and regulation, current proportional output, and protection circuitry. The low-power sleep mode achieves a low quiescent current. The DRV8244-Q1 offers voltage monitoring and load diagnostics, as well as protection features against overcurrent and overtemperature. Fault conditions are indicated on the nFAULT pin. The driver is available in a hardwired interface variant HW (H) and two SPI interface variants SPI(P) and SPI(S), with the SPI (P) for the externally supplied logic supply and the SPI (S) for the internally generated logic supply. The SPI interface variants offer more flexibility in device configuration and fault observability.