TI Introduces Automotive GaN FET with Integrated Driver, Protection, and Active Power Management

Semiconductors aimed at the automotive and industrial sectors have been coming at us at a fast and furious pace. Here is yet another example: Texas Instruments recently expanded its family of high-voltage power-management devices with the introduction of 600- and 650-V gallium nitride (GaN) FETs, dubbed the LMG3425R030. There are four new devices in the family.

With a fast-switching, 2.2-MHz integrated gate driver, the GaN FETs increase power density and efficiency and, according to the company, reduce the size of power magnetics by 59% compared to existing solutions. The FETs are designed with proprietary GaN materials on a GaN-on-silicon (Si) substrate, providing cost and supply-chain advantages over comparable substrate materials such as silicon carbide (SiC).

A key feature of the devices is the ability to sit in closer proximity on a PCB, a requirement for today’s (and tomorrow’s) shrinking electronics. That’s one of the properties of GaN technology that TI has taken advantage of. More information is available in the app note Maximizing the Performance of GaN with Ideal Diode Mode.

Pre-production versions of the four new industrial-grade, 600-V GaN FETs are available now, in a 12- by12-mm, QFN package. Prices range from $8.34 to $14.68 each, in 1000-unit lots. Evaluation moduloes are available for al four as well, al set at $199.

About the Author

Rich Nass

Richard Nass is the Executive Vice-President of OpenSystems Media. His key responsibilities include setting the direction for all aspects of OpenSystems Media’s Embedded and IoT product portfolios, including web sites, e-newsletters, print and digital magazines, and various other digital and print activities. He was instrumental in developing the company’s on-line educational portal, Embedded University. Previously, Nass was the Brand Director for UBM’s award-winning Design News property. Prior to that, he led the content team for UBM Canon’s Medical Devices Group, as well all custom properties and events in the U.S., Europe, and Asia. Nass has been in the engineering OEM industry for more than 25 years. In prior stints, he led the Content Team at EE Times, handling the Embedded and Custom groups and the TechOnline DesignLine network of design engineering web sites. Nass holds a BSEE degree from the New Jersey Institute of Technology.

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