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专用驱动器可发挥出增强型GaN FET的最佳性能 2011年6月28日13:38 发布

众所周知,宜普电源转换公司(EPC)推出商用化增强型硅基氮化镓场效应晶体管(宜普称之为eGaN FET)产品已经超过一年多时间了。目前宜普公司正在与合作伙伴一起实现eGaN FET的专用驱动器,使其可以工作在更高电压、更低栅极电荷条件下,仍具更低的RDS(ON),以及没有反向恢复损耗(QRR)——所有这些特性都在比硅产品更小的裸片面积上实现。相比硅MOSFET,eGaN FET实际上可以显著提升品质因数(FOM)。

By Ashok Bindra
How2Power
June, 2011

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National Semiconductor Introduces Industry’s First 100V Half-bridge Gate Driver for Enhancement-mode Gallium-Nitride Power FETs

National Semiconductor Corp. (NYSE:NSM) today introduced the industry’s first 100V half-bridge gate driver optimized for use with enhancement-mode Gallium-Nitride (GaN) power field-effect transistors (FETs) in high-voltage power converters. Enhancement-mode GaN FETs enable new levels of efficiency and power density compared to standard metal-oxide semiconductor field-effect transistors (MOSFETs) due to their low on-resistance (Rdson) and gate charge (Qg) as well as their ultra-small footprint, but driving them reliably presents significant new challenges. National’s LM5113 driver integrated circuit (IC) eliminates these challenges, enabling power designers to realize the benefits of GaN FETs in a variety of popular power topologies.

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