Typical Characteristics T = 25°C unless otherwise noted
C
1.2
80
CURRENT LIMITED
BY PACKAGE
1.0
60
0.8
V
= 10V
GS
0.6
40
0.4
V
= 4.5V
GS
20
0.2
0
0
0
25
50
75
100
150
175
125
o
25
50
75
100
125
o
150
175
T
, CASE TEMPERATURE ( C)
C
T
, CASE TEMPERATURE ( C)
C
Figure 1. Normalized Power Dissipation vs Case
Temperature
Figure 2. Maximum Continuous Drain Current vs
Case Temperature
2
DUTY CYCLE - DESCENDING ORDER
0.5
0.2
1
0.1
0.05
0.02
0.01
P
DM
0.1
t
1
t
2
NOTES:
DUTY FACTOR: D = t /t
1
2
SINGLE PULSE
0.01
PEAK T = P
x Z
x R
+ T
θJC C
J
DM
θJC
-5
-4
-3
-2
-1
0
1
10
10
10
10
t, RECTANGULAR PULSE DURATION (s)
10
10
10
Figure 3. Normalized Maximum Transient Thermal Impedance
1000
o
T
= 25 C
C
TRANSCONDUCTANCE
MAY LIMIT CURRENT
IN THIS REGION
FOR TEMPERATURES
o
ABOVE 25 C DERATE PEAK
CURRENT AS FOLLOWS:
175 - T
150
C
I = I
25
V
= 4.5V
GS
100
30
-5
-4
-3
-2
-1
0
1
10
10
10
10
t, PULSE WIDTH (s)
10
10
10
Figure 4. Peak Current Capability
©2008 Fairchild Semiconductor Corporation
FDD8876 / FDU8876 Rev. 1.2
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