AP3019A 查看數據表（PDF） - BCD Semiconductor
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AP3019A Datasheet PDF : 15 Pages
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WHITE LED STEP-UP CONVERTER
Typical Performance Characteristics (Continued)
WLED forward voltage (VF) is 3.45V at IF=20mA, unless otherwise noted.
Data Sheet
AP3019A
210
208
206
204
202
200
198
196
194
192
190
-50
-25
0
25
50
75
100
Junction Temperature (oC)
Figure 12. Feedback Voltage vs.
Junction Temperature
0.80
0.78
0.76
0.74
0.72
0.70
0.68
0.66
0.64
I =150mA
D
0.62
0.60
-50
-25
0
25
50
75
100
Junction Temperature (oC)
Figure 13. Schottky Forward Drop vs.
Junction Temperature
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
-50
V =10V
R
V =16V
R
V =23V
R
-25
0
25
50
75
100
Junction Temperature (oC)
Figure 14. Schottky Leakage Current vs.
Junction Temperature
700
600
500
400
300
-50OC
200
25OC
100OC
100
30
40
50
60
70
80
90
Duty Cycle (%)
Figure 15. Current Limit vs. Duty Cycle
Mar. 2010 Rev. 1.7
BCD Semiconductor Manufacturing Limited
8
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