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November 2013
FDA18N50
N-Channel UniFET TM MOSFET
500 V, 19 A, 265 m ?
Features
? R DS(on) = 265 m ? (Max.) @ V GS = 10 V, I D = 9.5 A
? Low Gate Charge (Typ. 45 nC)
? Low C rss (Typ. 25 pF)
? 100% Avalanche Tested
Applications
? PDP TV
Description
UniFET TM MOSFET is Fairchild Semiconductor ’s high voltage
MOSFET family based on planar stripe and DMOS technology.
This MOSFET is tailored to reduce on-state resistance, and to
provide better switching performance and higher avalanche
energy strength. This device family is suitable for switching
power converter applications such as power factor correction
(PFC), flat panel display (FPD) TV power, ATX and electronic
lamp ballasts.
? Uninterruptible Power Supply
? AC-DC Power Supply
D
G
G
D
S
TO-3PN
S
Absolute Maximum Ratings T C = 25 C unless otherwise noted.
o
Symbol
V DSS
Drain-Source Voltage
Parameter
FDA18N50
500
Unit
V
I D
Drain Current
- Continuous (T C = 25 ? C)
- Continuous (T C = 100 ? C)
19
11.4
A
A
I DM
V GSS
Drain Current
Gate-Source voltage
- Pulsed
(Note 1)
76
? 30
A
V
E AS
I AR
E AR
dv/dt
Single Pulsed Avalanche Energy
Avalanche Current
Repetitive Avalanche Energy
Peak Diode Recovery dv/dt
(Note 2)
(Note 1)
(Note 1)
(Note 3)
945
19
23
4.5
mJ
A
mJ
V/ns
P D
Power Dissipation
(T C = 25 ? C)
- Derate above 25 ? C
239
1.92
W
W/ ? C
T J, T STG
T L
Operating and Storage Temperature Range
Maximum Lead Temperature for Soldering Purpose,
1/8” from Case for 5 Seconds
-55 to +150
300
? C
? C
Thermal Characteristics
Symbol
R ? JC
R ? JA
Parameter
Thermal Resistance, Junction-to-Case, Max.
Thermal Resistance, Junction-to-Ambient, Max.
FDA18N50
0.52
40
Unit
? C/W
?2006 Fairchild Semiconductor Corporation
FDA18N50 Rev. C1
1
www.fairchildsemi.com
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