AP3009 查看數據表（PDF） - BCD Semiconductor
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AP3009 Datasheet PDF : 13 Pages
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WHITE LED STEP-UP CONVERTER
Typical Performance Characteristics (Continued)
(VF of WLED is 3.45V @ IF=20mA, unless otherwise noted )
Data Sheet
AP3009
1.25
1.20
1.15
1.10
1.05
1.00
0.95
-50
-25
0
25
50
75
100
Junction Temperature (oC)
202
201
200
199
198
197
196
-50
-25
0
25
50
75
100
Junction Temperature (oC)
Figure 12. Switching Frequency
vs. Junction Temperature
Figure 13. Feedback Voltage
vs. Junction Temperature
0.80
0.78
0.76
0.74
0.72
0.70
0.68
0.66
0.64
0.62
I =150mA
D
0.60
-50
-25
0
25
50
75
100
Junction Temperature (oC)
1.0
V =10V
R
V =16V
0.8
R
V =25V
R
0.6
0.4
0.2
0.0
-50
-25
0
25
50
75
100
Junction Temperature (oC)
Figure 14. Schottky Forward Drop
vs. Junction Temperature
Figure 15. Schottky Leackage Current
vs. Junction Temperature
Apr. 2007 Rev. 1. 4
BCD Semiconductor Manufacturing Limited
8
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