Datasheet
December 2013
FDA70N20 — N-Channel UniFET
TM
MOSFET
©2005 Fairchild Semiconductor Corporation
FDA70N20 Rev C1
www.fairchildsemi.com
1
FDA70N20
N-Channel UniFET
TM
MOSFET
200 V, 70 A, 35 mΩ
Features
•
R
DS(on)
= 35 mΩ (Max.) @ V
GS
= 10 V, I
D
= 35 A
•
Low Gate Charge (Typ. 66 nC)
•Low Crss (Typ. 89 pF)
•
100% Avalanche Tested
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.
Absolute Maximum Ratings
Applications
• Uninterruptible Power Supply
• AC-DC Power Supply
T
C
= 25°C unless otherwise noted.
TO-3PN
G
D
S
G
S
D
Thermal Characteristics
Symbol Parameter FDA70N20 Unit
V
DSS
Drain-Source Voltage 200 V
I
D
Drain Current - Continuous (T
C
= 25°C)
- Continuous (T
C
= 100°C)
70
45
A
A
I
DM
Drain Current - Pulsed
(Note 1)
280 A
V
GSS
Gate-Source voltage ±30 V
E
AS
Single Pulsed Avalanche Energy
(Note 2)
1742 mJ
I
AR
Avalanche Current (Note 1) 70 A
E
AR
Repetitive Avalanche Energy (Note 1) 41.7 mJ
dv/dt Peak Diode Recovery dv/dt
(Note 3) 4.5 V/ns
P
D
Power Dissipation
(T
C
= 25°C)
- Derate Above 25°C
417
3.3
W
W/°C
T
J,
T
STG
Operating and Storage Temperature Range -55 to +150 °C
T
L
Maximum Lead Temperature for Soldering Purpose,
1/8” from Case for 5 Seconds
300 °C
Symbol Parameter
FDA70N20
Unit
R
θJC
Thermal Resistance, Junction-to-Case, Max.
0.3
°C/W
R
θCS
Thermal Resistance, Case-to-Sink, Typ.
0.24
°C/W
R
θJA
Thermal Resistance, Junction-to-Ambient, Max.
40
°C/W