Evaluation of Low Voltage MOSFETs Optimised for Improved Current Sharing

Konferenz: PCIM Europe 2019 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
07.05.2019 - 09.05.2019 in Nürnberg, Deutschland

Tagungsband: PCIM Europe 2019

Seiten: 3Sprache: EnglischTyp: PDF

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Waterhouse, Steven; Bonov, Ilian (Nexperia, Bramhall Moor Lane, Stockport, SK7 5BJ, UK)

In high power Motor Control applications requiring the use of MOSFETs connected in parallel, there is a common request for semiconductor manufacturers to provide parts with matched Vgs threshold voltage. However, even with very tightly controlled production facilities there is an inevitable spread in the threshold voltage across the wafer and any effort to provide matched Vth may require special screening and sorting that could result in Yield loss, thus affecting the cost of the products supplied. In this paper, MOSFETs developed to have improved current sharing capability when used in parallel are demonstrated to remove the need for matching threshold voltages.