IRF740B

IRF740B/IRFS740B

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IRF740B/IRFS740B

November 2001

IRF740B/IRFS740B
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
10A, 400V, RDS(on) 0.54 VGS 10 V Low gate charge ( typical 41 nC) Low Crss ( typical 35 pF) Fast switching 100% avalanche tested Improved dv/dt capability

G G DS

TO-220
IRF Series

GD S

TO-220F
IRFS Series

Absolute Maximum Ratings
Symbol VDSS ID IDM VGSS EAS IAR EAR dv/dt PD TJ, TSTG TL

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)

IRF740B 400 10 6.3 40 30
(Note 2) (Note 1) (Note 1) (Note 3)

IRFS740B 10 6.3 40 450 10 13.4 5.5

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

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

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

134 1.08 -55 to 150 300

44 0.35

Drain current limited by maximum junction temperature

Thermal Characteristics
Symbol RJC RCS RJA Parameter Thermal Resistance, Junction-to-Case Thermal Resistance, Case-to-Sink Thermal Resistance, Junction-to-Ambient IRF740B 0.93 0.5 62.5 IRFS740B 2.86 -62.5 Units C/W C/W C/W

2001 Fairchild Semiconductor Corporation

Rev. A, November 2001