Improve system performance in hybrid vehicles

10th July 2015

Siobhan O'Gorman

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Datasheet

A 120V automotive grade half-bridge gate driver, claimed to be the industry’s fastest, has been introduced by Texas Instruments. The UCC27201A-Q1 high-side/low-side gate driver provides a propagation delay at 15ns with short rise and fall times and the tightest delay matching of 1ns for 12 to 48V DC/DC power supplies.

The device offers advanced noise tolerance, resulting in improved overall system performance for hybrid vehicles.The half-bridge gate driver is the only automotive gate driver to offer negative voltage handling capability on the high-side pin, making the product more immune to noise. An integrated 120V bootstrap diode also allows for N-channel MOSFET control and eliminates the need for external discrete diodes.

Alongside the industry’s fastest propagation delays at 15ns, the UCC27201A-Q1 features a faster rise and fall times at 7ns, allowing the system to switch efficiently at high frequencies. This reduces the size and weight of magnetics and heat sinks, ultimately lightening the vehicle load and resulting in longer mileage.

The device improves power-conditioning efficiency and enables the system to switch at high frequencies in hundreds of kilohertz, allowing for smaller system size and weight. The half-bridge gate driver drives any MOSFET in multiple power levels.

The device can be used in combination with any digital controller such as the UCD3138, C2000 LaunchPad Dev Kits, ultra-low-power MSP430 MCUs or any analogue controller in high-efficiency hybrid systems. Designers can quickly develop and debug applications by using the TINA-TI and PSpice models to quickly simulate system performance.

The UCC27201A-Q1 automotive gate driver comes in a SOIC-8 package and is priced at $1.62 in 1,000-piece unit-quantities.