IRFU320B

IRFR320B / IRFU320B

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IRFR320B / IRFU320B

March 2001

IRFR320B / IRFU320B
400V N-Channel MOSFET
General Description
These N-Channel enhancement mode power field effect transistors are produced using Fairchild s proprietary, planar, DMOS technology. This advanced technology has been especially tailored to minimize on-state resistance, provide superior switching performance, and withstand high energy pulse in the avalanche and commutation mode. These devices are well suited for high efficiency switch mode power supplies and electronic lamp ballasts based on half bridge.

Features
3.1A, 400V, RDS(on) 1.75 VGS 10 V Low gate charge ( typical 14 nC) Low Crss ( typical 11 pF) Fast switching 100% avalanche tested Improved dv/dt capability

D-PAK
IRFR Series

I-PAK
G D S
IRFU Series

Absolute Maximum Ratings
Symbol VDSS ID IDM VGSS EAS IAR EAR dv/dt PD

TC 25 C unless otherwise noted

Parameter Drain-Source Voltage - Continuous (TC 25 C) Drain Current - Continuous (TC 100 C) Drain Current - Pulsed
(Note 1)

IRFR320B / IRFU320B 400 3.1 2.0 12.4 30
(Note 2) (Note 1) (Note 1) (Note 3)

Units V A A A V mJ A mJ V/ns W W W/ C C C

Gate-Source Voltage Single Pulsed Avalanche Energy Avalanche Current Repetitive Avalanche Energy Peak Diode Recovery dv/dt Power Dissipation (TA 25 C) Power Dissipation (TC 25 C)

240 3.1 4.1 4.0 2.5 41 0.33 -55 to 150 300

TJ, Tstg TL

- Derate above 25 C Operating and Storage Temperature Range Maximum lead temperature for soldering purposes, 1/8" from case for 5 seconds

Thermal Characteristics
Symbol RJC RJA RJA Parameter Thermal Resistance, Junction-to-Case Thermal Resistance, Junction-to-Ambient Thermal Resistance, Junction-to-Ambient Typ ---Max 3.05 50 110 Units C/W C/W C/W

When mounted on the minimum pad size recommended (PCB Mount)
2001 Fairchild Semiconductor Corporation Rev. A, March 2001