Datasheet

October 2013
FQB34N20L — N-Channel QFET
®
MOSFET
www.fairchildsemi.com
1
Thermal Characteristics
Symbol Parameter Unit
R
JC
Thermal Resistance, Junction to Case, Max. 0.7
o
C/W
R
JA
Thermal Resistance, Junction to Ambient (minimum pad of 2 oz copper), Max. 62.5
Thermal Resistance, Junction to Ambient (* 1 in
2
pad of 2 oz
copper), Max.
40
FQB34N20L
N-Channel QFET
®
MOSFET
200 V, 31 A, 75 mΩ
Description
This N-Channel enhancement mode power MOSFET is
produc
ed using Fairchild Semiconductor’s proprietary
planar stripe and DMOS technology. This advanced
MOSFET technology has been especially tailored to
reduce on-state resistance, and to provide superior
switching performance and high avalanche energy
strength. These devices are suitable for switched mode
power supplies, active power factor correction (PFC), and
electronic lamp ballasts.
Features
31 A, 200 V, R
DS(on)
= 75 m (max.) @ V
GS
= 10 V,
I
D
= 15.5 A
Low Gate Charge (Typ. 55 nC)
Low Crss (Typ. 52 pF)
100% Avalanche Tested
Low level gate drive requirement allowing direct
opration from logic drivers
Absolute Maximum Ratings T
C
= 25°C unless otherwise noted
Symbol Parameter
FQB34N20LTM
Unit
V
DSS
Drain-Source Voltage 200 V
I
D
Drain Current 31 A
- Continuous (T
C
= 25°C)
- Continuous (T
C
= 100°C)
20 A
I
DM
Drain Current - Pulsed
(Note 1)
124 A
V
GSS
Gate-Source Voltage ± 20 V
E
AS
Single Pulsed Avalanche Energy
(Note 2)
640 mJ
I
AR
Avalanche Current
(Note 1)
31 A
E
AR
Repetitive Avalanche Energy
(Note 1)
18 mJ
dv/dt Peak Diode Recovery dv/dt
(Note 3)
5.5 V/ns
P
D
Power Dissipation (T
A
= 25°C) *
3.13 W
Power Dissipation (T
C
= 25°C)
180 W
- Derate above 25°C 1.43 W/°C
T
J
, T
STG
Operating and Storage Temperature Range -55 to +150 °C
T
L
Maximum lead temperature for soldering purposes,
1/8” from case for 5 seconds
300 °C
RoHS Compliant
FQB34N20LTM
G
S
D
D
2
-PAK
G
S
D
©2006 Fairchild Semiconductor Corporation
FQB34N20L Rev. C1

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