IRF644B Datasheet, PDF (1/10 Pages) Fairchild Semiconductor – 250V N-Channel MOSFET

November 2001
IRF644B/IRFS644B
250V 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 converter and
switch mode power supplies.
Features
• 14A, 250V, R_DS(on) = 0.28Ω @V_GS = 10 V
• Low gate charge ( typical 47 nC)
• Low Crss ( typical 30 pF)
• Fast switching
• 100% avalanche tested
• Improved dv/dt capability
D
G DS
TO-220
IRF Series
GD S
TO-220F
IRFS Series
G
S
Absolute Maximum Ratings T_C = 25°C unless otherwise noted
Symbol
Parameter
V_DSS
Drain-Source Voltage
I_D
Drain Current - Continuous (T_C = 25°C)
- Continuous (T_C = 100°C)
I_DM
Drain Current - Pulsed
(Note 1)
V_GSS
Gate-Source Voltage
E_AS
Single Pulsed Avalanche Energy
(Note 2)
I_AR
Avalanche Current
(Note 1)
E_AR
Repetitive Avalanche Energy
(Note 1)
dv/dt
Peak Diode Recovery dv/dt
(Note 3)
P_D
Power Dissipation (T_C = 25°C)
- Derate above 25°C
T_J, T_STG
Operating and Storage Temperature Range
T_L
Maximum lead temperature for soldering purposes,
1/8" from case for 5 seconds
* Drain current limited by maximum junction temperature.
IRF644B
IRFS644B
250
14
14 *
8.9
8.9 *
56
56 *
± 30
480
14
13.9
5.5
139
43
1.11
0.35
-55 to +150
300
Thermal Characteristics
Symbol
R_θJC
R_θCS
R_θJA
Parameter
Thermal Resistance, Junction-to-Case Max.
Thermal Resistance, Case-to-Sink Typ.
Thermal Resistance, Junction-to-Ambient Max.
IRF644B
0.9
0.5
62.5
IRFS644B
2.89
--
62.5
Units
V
A
A
A
V
mJ
A
mJ
V/ns
W
W/°C
°C
°C
Units
°C/W
°C/W
°C/W
©2001 Fairchild Semiconductor Corporation
Rev. A, November 2001