Typical Characteristics T C = 25°C unless otherwise noted
1.2
200
CURRENT LIMITED
1.0
0.8
0.6
0.4
160
120
80
BY PACKAGE
0.2
40
0
0
25
50
75
100
125
150
175
0
25
50
75
100
125
150
175
T C , CASE TEMPERATURE ( o C)
Figure 1. Normalized Power Dissipation vs
Ambient Temperature
2
DUTY CYCLE - DESCENDING ORDER
T C , CASE TEMPERATURE ( o C)
Figure 2. Maximum Continuous Drain Current vs
Case Temperature
1
0.5
0.2
0.1
0.05
0.02
0.01
P DM
0.1
t 1
t 2
NOTES:
0.01
SINGLE PULSE
DUTY FACTOR: D = t 1 /t 2
PEAK T J = P DM x Z T JC x R T JC + T C
10 -5
10 -4
10 -3
10 -2
10 -1
10 0
10 1
t, RECTANGULAR PULSE DURATION (s)
Figure 3. Normalized Maximum Transient Thermal Impedance
2000
1000
T C = 25 o C
FOR TEMPERATURES
ABOVE 25 o C DERATE PEAK
CURRENT AS FOLLOWS:
V GS = 10V
I = I 25
175 - T C
150
TRANSCONDUCTANCE
MAY LIMIT CURRENT
100
50
IN THIS REGION
10 -5
10 -4
10 -3
10 -2
10 -1
10 0
10 1
t, PULSE WIDTH (s)
Figure 4. Peak Current Capability
FDB045AN08A0_F085A Rev. A
www.fairchildsemi.com
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