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AN605 - Power MOSFET

General Description

Capacitance due to the overlap of the source and channel regions by the polysilicon gate.

Independent of applied voltage.

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Datasheet Details

Part number AN605
Manufacturer Vishay
File Size 116.53 KB
Description Power MOSFET
Datasheet download datasheet AN605 Datasheet

Full PDF Text Transcription (Reference)

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AN605 Vishay Siliconix Power MOSFET Basics: Understanding MOSFET Characteristics Associated With The Figure of Merit Jess Brown, Guy Moxey INTRODUCTION Power MOSFETs have become the standard choice as the main switching device for low-voltage (<200 V) switchmode power-supply (SMPS) converter applications. However using manufacturers’ datasheets to choose or size the correct device for a specific circuit topology is becoming increasingly difficult. The main criteria for MOSFET selection are the power loss associated with the MOSFET (related to the overall efficiency of the SMPS) and the power-dissipation capability of the MOSFET (related to the maximum junction temperature and thermal performance of the package).