Just recently, Texas Instruments (TI) has rolled out two new automotive motor drivers designed to 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, enhance system performance and give design flexibility to meet a wide array of automotive system requirements.
For powertrain applications like engine cooling fans or transmission pumps, the DRV8305-Q1 boasts a smart gate-drive architecture with programmable slew-rate control that enables easy optimization of MOSFET electromagnetic compliance (EMC). Featuring an operating ambient temperature range of -40 to 150°C, the DRV8305-Q1 meets the Automotive Electronics Council (AEC)-Q100 Grade 0 automotive temperature specification. The following are its other features and benefits:
Fault protection: State-of-the-art on-chip protection with detailed fault diagnostics guard against undervoltage lockout, overtemperature, overcurrent events, and MOSFET shoot-through. For automotive designers searching for design flexibility, the 100-V UCC27211A-Q1 half-bridge gate driver supports brushed and brushless DC motor applications. Designing with inpidual half bridges enables placement of the gate driver close to the MOSFETs, reducing parasitic inductances and streamlining overall board layout. Moreover, it offers the following benefits:
Robust protection: Thanks to the UCC27211A-Q1’s negative voltage rating of -12V, the driver is protected from potentially damaging voltage spikes.
Topnotch performance: With the industry’s fastest propagation delays at 15 ns, fast rise and fall times of 7 ns and a 4-A peak gate drive, the motor driver packs high performance into a small 4.89-mm-by-3.9-mm package size.
Reduced board space: The DRV8305-Q1’s integrated 3.3V or 5V linear regulator, smart gate-drive architecture, and three current-sense amplifiers reduces board size and helps remove up to 20 components.
Start-stop support: What’s more, the motor driver operates down to support start-stop functionality, which enables automakers to meet stringent fuel efficiency and carbon-dioxide emission standards.
The all-new UCC27211A-Q1 and DRV8305-Q1 expand Texas Instruments’ solid portfolio of motor drivers that provide designers with integrated, flexible solutions across a wide range of current, voltage, integration, interface, and control options.
Hamid Moaref has always been fascinated by cars and the automotive industry. His family has a longstanding association with the industry and has been in the tire business for the past 35 years. Raised in Dubai, Hamid attended Capilano University in Vancouver where he graduated with a BBA in marketing before attending an intensive course in magazine publishing in 2005. He has been the publisher and chief editor of Tires & Parts magazine for the past ten years.
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