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Onsemi and VW Join Forces to Deliver Next-Gen EV Inverters with SiC Power Modules

Onsemi, a leader in intelligent power and sensing technologies, has signed a strategic agreement with Volkswagen AG (VW) to provide the silicon carbide (SiC) power modules and semiconductors that will enable a complete traction inverter solution for VW’s next-generation platform family of electric vehicles (EVs).

The traction inverter is a key component of an EV that converts the direct current (DC) from the battery to the alternating current (AC) that drives the electric motor. The use of SiC technology can improve the efficiency and performance of the inverter, as well as reduce the size and weight of the device.

The collaboration between Onsemi and VW is intended to optimize the performance from the component to sub-system level for both front and rear traction inverters in the VW models. As part of the agreement, Onsemi will deliver its EliteSiC 1200 V traction inverter power modules, which are pin to pin compatible to easily scale the solution to different power levels and types of motors.

Teams from the two companies have been working together for more than a year on the optimization of the power modules for the next-generation platform, with pre-production samples under development and evaluation.

“The superior performance and quality of Onsemi’s traction inverter modules together with our joint efforts to create the best system solution enable us to deliver the outstanding driving experience and quality customers expect from a VW group vehicle,” said Karsten Schnake, head of the operative and strategic semiconductor taskforce COMPASS at Volkswagen AG.

Onsemi’s broad portfolio of intelligent power and sensing solutions further allows VW to offer cutting-edge technologies and features in its EVs, from the traction inverter and beyond. Besides this milestone, Onsemi with its balanced production facility layout in the U.S., Asia and Europe, including the plant in the Czech Republic, is the perfect match to support VW’s strategic markets with all high-voltage solutions and more.

With 19 wafer fabrication and packaging manufacturing sites, Onsemi provides VW with more than 500 different devices – including IGBTs, MOSFETS, image sensors and power management integrated circuits (PMICs). In addition to its versatile portfolio, Onsemi has a vertical SiC production chain, which includes volume boule growth, wafering, substrate, epitaxy, device fabrication, best-in-class integrated modules and discrete package solutions, that perfectly supports a secured supply chain.

“Our broad manufacturing footprint – including a resilient end-to-end SiC supply chain – empowers Onsemi to deliver the supply assurance OEMs demand,” said Simon Keeton, executive vice president and general manager, Power Solutions Group, Onsemi.

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