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FDP8441 Datasheet, PDF (4/7 Pages) Fairchild Semiconductor – N-Channel PowerTrench MOSFET (40V, 80A, 2.7mohm)
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Typical Characteristics
1.2
300
1.0
250
CURRENT LIMITED
BY PACKAGE
VGS = 10V
0.8
200
0.6
150
0.4
100
0.2
50
0.0
0
25 50 75 100 125 150 175
TC, CASE TEMPERATURE(oC)
Figure 1. Normalized Power Dissipation vs Case
Temperature
0
25
50
75 100 125 150 175
TC, CASE TEMPERATURE(oC)
Figure 2. Maximum Continuous Drain Current vs
Case Temperature
2
1 DUTY CYCLE - DESCENDING ORDER
D = 0.50
0.20
0.10
0.1
0.05
0.02
PDM
0.01
0.01
SINGLE PULSE
1E-3
10-5
10-4
t1
t2
NOTES:
DUTY FACTOR: D = t1/t2
PEAK TJ = PDM x ZθJC x RθJC + TC
10-3
10-2
10-1
100
101
t, RECTANGULAR PULSE DURATION(s)
Figure 3. Normalized Maximum Transient Thermal Impedance
10000
VGS = 10V
1000
TRANSCONDUCTANCE
MAY LIMIT CURRENT
IN THIS REGION
TC = 25oC
FOR TEMPERATURES
ABOVE 25oC DERATE PEAK
CURRENT AS FOLLOWS:
I = I25
175 - TC
150
100
SINGLE PULSE
10
10-5
10-4
10-3
10-2
10-1
100
101
t, RECTANGULAR PULSE DURATION(s)
Figure 4. Peak Current Capability
FDP8441 Rev.A
4
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