
NCV8405, NCV8405A
TYPICAL PERFORMANCE CURVES
100
50% Duty Cycle
20%
10
10%
5%
2%
1
1%
0.1
Single Pulse
0.01
0.000001
0.00001
0.0001
0.001
0.01
0.1
1
10
100
1000
PULSE WIDTH (sec)
Figure 20. Transient Thermal Resistance
140
120
100
q JA Curve with PCB cu thk 1.0 oz
T A 25 ° C
80
60
q JA Curve with PCB cu thk 2.0 oz
40
20
0
0
100
200
300
400
500
600
700
COPPER HEAT SPREADER AREA
Figure 21. q JA vs. Copper
http://onsemi.com
7
(mm 2 )