Data Sheet
WHITE LED STEP-UP CONVERTER
AP3019A
Typical Performance Characteristics (Continued)
WLED forward voltage (VF) is 3.45V at IF=20mA, unless otherwise noted.
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
30
25
20
15
10
5
TA=-50OC
TA=25OC
TA=100OC
TA=25OC
0
0
2
4
6
8
10
12
14
16
2
4
6
8
10
12
14
16
Input Voltage (V)
Input Voltage (V)
Figure 8. Shutdown Quiescent Current vs. Input Voltage
Figure 9. Quiescent Current vs. Input Voltage
1.40
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.35
1.30
1.25
1.20
1.15
1.10
1.05
1.00
0.95
0.90
2.5
3.0
3.5
4.0
4.5
5.0
-50
-25
0
25
50
75
100
Input Voltage (V)
Junction Temperature (oC)
Figure 10. Input Current in Output Open Circuit
vs. Input Voltage
Figure 11. Frequency vs. Junction Temperature
Mar. 2010 Rev. 1.7
BCD Semiconductor Manufacturing Limited
7
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
