Typical Characteristics TJ = 25°C unless otherwise noted
2
DUTY CYCLE-DESCENDING ORDER
1
0.1
0.01
10-3
D = 0.5
0.2
0.1
0.05
0.02
0.01
SINGLE PULSE
RθJA = 135oC/W
PDM
t1
t2
NOTES:
DUTY FACTOR: D = t1/t2
PEAK TJ = PDM x ZθJA x RθJA+ TA
10-2
10-1
100
101
100
t, RECTANGULAR PULSE DURATION (sec)
Figure 13. Transient Thermal Response Curve
1000
©2008 Fairchild Semiconductor Corporation
5
FDS9933BZ Rev.C
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