AP3008 查看數據表（PDF） - BCD Semiconductor
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AP3008 Datasheet PDF : 10 Pages
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WHITE LED DRIVER
Typical Performance Characteristics (Continued)
Preliminary Datasheet
AP3008
84
I =20mA
LED
82
I =15mA
LED
80
V =3.6V
IN
3 LEDs
I =10mA
LED
78
-50
-25
0
25
50
75
100
Junction Temperature (oC)
440
400
360
320
280
240
200
160
120
80
40
0
0
20
40
60
Duty Cycle (%)
80
100
Figure 8. Efficiency vs. Junction Temperature
Figure 9. Switch Current vs. Duty Cycle
85
3 LEDs
V =3.35V, TA=25oC
80
LED
V =3V
75
IN
V =3.6V
IN
70
85
4 LEDs
V =3.35V, TA=25oC
80
LED
75
V =3V
IN
V =3.6V
IN
70
65
65
60
60
0
5
10
15
20
0
5
10
15
20
LED Current (mA)
LED Current (mA)
Figure 10. Efficiency vs. LED Current
Figure 11. Efficiency vs. LED Current
Jul. 2006 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
7
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