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IRLR3717PBF Datasheet HEXFET Power MOSFET

Manufacturer: International Rectifier (now Infineon)

Overview

PD - 95776A IRLR3717PbF IRLU3717PbF Applications l High Frequency Synchronous Buck Converters for Computer Processor Power l High Frequency Isolated DC-DC Converters with Synchronous Rectification.

Key Features

  • ) + ⎛ Qoss × Vin × f ⎞ ⎝ 2 ⎠ ⎞ ⎞ ⎛ Qgs 2 f⎟ + ⎜ I × × Vin × f ⎟ ig ⎠ ⎝ ⎠ This simplified loss equation includes the terms Qgs2 and Qoss which are new to Power MOSFET data sheets. Qgs2 is a sub element of traditional gate-source charge that is included in all MOSFET data sheets. The importance of splitting this gate-source charge into two sub elements, Qgs1 and Qgs2, can be seen from Fig 16. Qgs2 indicates the charge that must be supplied by the gate driver between the time that the threshold vo.