AP3031K-G1 Просмотр технического описания (PDF) - BCD Semiconductor
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AP3031K-G1 Datasheet PDF : 16 Pages
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WHITE LED STEP-UP CONVERTER
Typical Performance Characteristics (Continued)
(WLED forward voltage (VF)=3.2V at IF=20mA, unless otherwise noted.)
Data Sheet
AP3031
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
-60 -40 -20
0 20 40 60 80
Temperature (oC)
100 120 140
Figure 12. Frequency vs. Temperature
20
19
18
17
16
15
14
-60 -40 -20
0 20 40 60 80
Temperature (oC)
100 120 140
Figure 13. OVP Voltage vs. Temperature
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
0.75
0.70
2
4
6
8
10
12
14
16
18
Input Voltage (V)
Figure 14. Frequency vs. Input Voltage
2.0
1.9
T =-40oC
A
1.8
T =25oC
A
1.7
T =85oC
A
1.6
1.5
1.4
1.3
1.2
1.1
1.0
10
20
30
40
50
60
70
80
90
Duty Cycle (%)
Figure 15. Switch Current Limit vs. Duty Cycle
Apr. 2009 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
8
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