AP3031A Ver la hoja de datos (PDF) - BCD Semiconductor
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AP3031A Datasheet PDF : 11 Pages
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WHITE LED STEP-UP CONVERTER
Typical Performance Characteristics
(WLED forward voltage (VF)=3.2V at IF=20mA, unless otherwise noted.)
Data Sheet
AP3031A
88
80
72
64
56
48
4
8
12
Input Voltage (V)
L=22µH
I =20mA
LED
10 LEDs
16
Figure 4. Efficiency vs. Input Voltage
2.5
2.4
2.3
2.2
2.1
2.0
-40
0
40
80
Temperature (oC)
120
160
Figure 5. Minimum Operating Voltage vs. Temperature
4.7
4.6
4.5
4.4
4.3
4.2
4.1
4.0
T =--40oC
A
3.9
T = 25oC
A
3.8
T = 85oC
A
3.7
2
4
6
8
10
12
14
16
Input Voltage (V)
100
80
60
40
4
8
12
Input Voltage (V)
T =-40oC
A
T =25oC
A
T =85oC
A
16
Figure 6. Quiescent Current vs. Input Voltage
Figure 7. Shutdown Quiescent Current vs. Input Voltage
May 2009 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
6
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