Gate drivers boost powertrain performance with start-stop and high-temperature operation

Texas Instruments has introduced two new automotive motor drivers that support high-performance powertrain applications. The DRV8305-Q1, a highly integrated three-phase brushless DC gate driver, and the UCC27211A-Q1, a high-current half-bridge gate driver, improve system performance and provide design flexibility to meet a diverse range of automotive system requirements. For powertrain applications such as transmission pumps or engine cooling fans, the DRV8305-Q1 features a smart gate-drive architecture with programmable slew-rate control that allows easy optimisation of MOSFET electromagnetic compliance (EMC). With an operating ambient temperature range of -40C to 150C, the DRV8305-Q1 meets the Automotive Electronics Council (AEC)-Q100 Grade 0 automotive temperature specification. For automotive designers looking for design flexibility, the 100V UCC27211A-Q1 half-bridge gate driver supports both brushed and brushless DC motor applications. Designing with individual half bridges allows placement of the gate driver close to the MOSFETs, minimising parasitic inductances and simplifying overall board layout. The devices expand the company’s portfolio of motor drivers that offer designers integrated, flexible solutions across a broad range of voltage, current, interface, integration and control options.