AP3029KTR-E1 查看數據表（PDF） - BCD Semiconductor
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AP3029KTR-E1 Datasheet PDF : 16 Pages
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WHITE LED STEP-UP CONVERTER
Typical Performance Characteristics
(VF of WLED is 3.45V @ IF=20mA, unless otherwise noted )
Preliminary Datasheet
AP3029
85
84
83
82
81
80
79
78
77
-50
V =3.6V, I =20mA, 4 LEDs
IN
OUT
C =1µF, C =0.22µF, L=22µH
IN
OUT
-25
0
25
50
75
100
Junction Temperature (oC)
85
84
83
82
81
80
79
78
77
2.5
I =20mA, 4 LEDs, T =25OC
OUT
A
C =1µF, C =0.22µF, L=22µH
IN
OUT
3.0
3.5
4.0
4.5
5.0
Input Voltage (V)
Figure 4. Efficiency vs. Junction Temperature
Figure 5. Efficiency vs. Input Voltage
85
350
84
300
83
250
82
200
81
150
80
100
79
V =3.6V, I =20mA, T =25OC
IN
OUT
A
C =1µF, C =0.22µF, L=22µH
IN
OUT
50
78
77
2
3
4
5
6
LEDs (PCS)
0
0
200
400
600
800
1000
Schottky Forward Drop (mV)
Figure 6. Efficiency vs. LED's Number
Figure 7. Schottky Forward Current
vs. Schottky Forward Drop
Aug. 2008 Rev. 1. 2
BCD Semiconductor Manufacturing Limited
6
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