IRF7821 Datasheet Power MOSFET

Manufacturer: International Rectifier (now Infineon)

Overview: PD - 94579B IRF7821 HEXFET® Power MOSFET Applications l High Frequency Point-of-Load Synchronous Buck Converter for Applications in Networking & Computing Systems. Benefits l Very Low RDS(on) at 4.

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IRF7821 power mosfet by International Rectifier (now Infineon) - Datasheet Preview

Datasheet Details

Part number	IRF7821
Manufacturer	International Rectifier (now Infineon)
File Size	210.77 KB
Description	Power MOSFET
Download	IRF7821 Download (PDF)

Key Features

Cdv/dt turn on. The drain of Q2 is connected to the switching node of the converter and therefore sees transitions between ground and Vin. As Q1 turns on and off there is a rate of change of drain voltage dV/dt which is capacitively coupled to the gate of Q2 and can induce a voltage spike on the gate that is sufficient to turn the MOSFET on, resulting in shoot-through current . The ratio of Qgd/Qgs1 must be minimized to reduce the potential for Cdv/dt turn on. Ploss = (Irms × Rds(on ) ) 2  .

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