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FDB8860_08 Datasheet, PDF (4/7 Pages) Fairchild Semiconductor – N-Channel Logic Level PowerTrench® MOSFET
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Typical Characteristics TJ = 25°C unless otherwise noted
1.2
300
VGS = 10V
1.0
CURRENT LIMITED
225
BY PACKAGE
0.8
VGS = 5V
0.6
150
0.4
75
0.2
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
DUTY CYCLE-DESCENDING ORDER
1
D = 0.5
0.2
0.1
0.05
0.02
0.01
0.1
SINGLE PULSE
PDM
t1
t2
NOTES:
DUTY FACTOR: D = t1/t2
PEAK TJ = PDM x ZθJC x RθJC + TC
0.01
10-5
10-4
10-3
10-2
10-1
100
101
t, RECTANGULAR PULSE DURATION (s)
Figure 3. Normalized Maximum Transient Thermal Impedance
3000
1000
TC = 25oC
FOR TEMPERATURES
ABOVE 25oC DERATE PEAK
CURRENT AS FOLLOWS:
I = I25
175 - TC
150
100
SINGLE PULSE
50
10-5
10-4
10-3
10-2
10-1
100
101
t, PULSE WIDTH (s)
Figure 4. Peak Current Capability
FDB8860 Rev A1
4
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