FDH44N50 Datasheet, PDF (1/6 Pages) Fairchild Semiconductor – 44A, 500V, 0.12 Ohm, N-Channel SMPS Power MOSFET

August 2002
FDH44N50
44A, 500V, 0.12 Ohm, N-Channel SMPS Power MOSFET
Applications
Switch Mode Power Supplies(SMPS), such as
• PFC Boost
• Two-Switch Forward Converter
• Single Switch Forward Converter
• Flyback Converter
• Buck Converter
• High Speed Switching
Features
• Low Gate Charge Q_g results in Simple Drive
Requirement
• Improved Gate, Avalanche and High Reapplied dv/dt
Ruggedness
• Reduced r_DS(ON)
• Reduced Miller Capacitance and Low Input Capacitance
• Improved Switching Speed with Low EMI
• 175°C Rated Junction Temperature
Package
JEDEC TO-247
Symbol
DRAIN
(FLANGE)
SOURCE
DRAIN
GATE
D
G
S
Absolute Maximum Ratings T_C = 25^oC unless otherwise noted
Symbol
V_DSS
V_GS
I_D
Parameter
Drain to Source Voltage
Gate to Source Voltage
Drain Current
Continuous (T_C = 25^oC, V_GS = 10V)
Continuous (T_C = 100^oC, V_GS = 10V)
Pulsed¹
Ratings
500
±30
44
32
176
P_D
T_J, T_STG
Power dissipation
Derate above 25^oC
Operating and Storage Temperature
Soldering Temperature for 10 seconds
750
5
-55 to 175
300 (1.6mm from case)
Mounting Torque, 8-32 or M3 Screw
10ibf*in (1.1N*m)
Thermal Characteristics
R_θJC Thermal Resistance Junction to Case
0.2
R_θCS Thermal Resistance Case to Sink, Flat, Greased Surface
0.24
R_θJA Thermal Resistance Junction to Ambient
40
Units
V
V
A
A
A
W
W/^oC
o_C
o_C
o_C/W
o_C/W
o_C/W
©2002 Fairchild Semiconductor Corporation
FDH44N50 Rev. A4, August 2002