IRF640B/IRFS640B
November 2001
IRF640B/IRFS640B
200V 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 switching DC/DC converters,
switch mode power supplies, DC-AC converters for
uninterrupted power supply and motor control.
Features
•
•
•
•
•
•
18A, 200V, R
DS(on)
= 0.18Ω @V
GS
= 10 V
Low gate charge ( typical 45 nC)
Low Crss ( typical 45 pF)
Fast switching
100% avalanche tested
Improved dv/dt capability
D
G
G DS
TO-220
IRF Series
GD S
TO-220F
IRFS Series
S
Absolute Maximum Ratings
Symbol
V
DSS
I
D
I
DM
V
GSS
E
AS
I
AR
E
AR
dv/dt
P
D
T
J
, T
STG
T
L
T
C
= 25°C unless otherwise noted
Parameter
Drain-Source Voltage
- Continuous (T
C
= 25°C)
Drain Current
- Continuous (T
C
= 100°C)
Drain Current
- Pulsed
(Note 1)
IRF640B
200
18
11.4
72
±
30
(Note 2)
(Note 1)
(Note 1)
(Note 3)
IRFS640B
18 *
11.4 *
72 *
250
18
13.9
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 (T
C
= 25°C)
- Derate above 25°C
Operating and Storage Temperature Range
Maximum lead temperature for soldering purposes,
1/8" from case for 5 seconds
139
1.11
-55 to +150
300
43
0.35
* Drain current limited by maximum junction temperature.
Thermal Characteristics
Symbol
R
θJC
R
θCS
R
θJA
Parameter
Thermal Resistance, Junction-to-Case
Thermal Resistance, Case-to-Sink
Thermal Resistance, Junction-to-Ambient
IRF640B
0.9
0.5
62.5
IRFS640B
2.89
--
62.5
Units
°C/W
°C/W
°C/W
©2001 Fairchild Semiconductor Corporation
Rev. A, November 2001
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
