Trench technology results in low leakage and also greatly reduces the stored charge, Qrr, in the device. Therefore, Trench Schottky rectifiers provide very fast switching, reducing both the rectifier's switching losses and the losses induced in the MOSFET within the same switching cell—a configuration commonly used in asynchronous switched-mode power converters. Nexperia's PMEGxxxTx devices also offer a wide safe operating area (SOA), providing an additional safety margin and reducing the risk of thermal runaway compared to currently available components.
Jan Fischer, product manager at Nexperia, comments: “Nexperia’s Trench Schottky rectifiers combine low forward voltage and very low Qrr to enable the best efficiency at high switching speeds, as required in switched-mode power converters. Automotive applications, including LED lighting, in particular, will benefit from the wide SOA of our components.”
Nexperia is investing in its Trench Schottky rectifier portfolio, now offering 32 devices from 40 V to 100 V and up to 15 A in volume production. An additional 17 components, including 20 A types, are in the sampling phase. The PMEGxxxTx devices are housed in Clip Bond FlatPower CFP3/5/15(B) packages. These packages, with their size and thermal efficiency, have become the industry standard for power diodes. Featuring a solid copper clip, the thermal resistance of the packages is reduced and heat transfer to the environment is optimized, enabling smaller, more compact PCB designs.
Designers can learn more about Nexperia's Trench Schottky Rectifiers by visiting Nexperia's virtual booth at PCIM Digital Days from May 3-7. On Thursday, May 6, the company will host a free live webinar on this topic, titled "Trench Schottky Rectifiers: How to Increase the Efficiency of Your Switched-Mode Power Converter."
