AL8807AMP-13 データシートの表示（PDF） - Diodes Incorporated.
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AL8807AMP-13
Diodes Incorporated.
AL8807AMP-13 Datasheet PDF : 20 Pages
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AL8807A
Typical Performance Characteristics (cont.) (@TA = +25°C, unless otherwise specified.)
100%
90%
80%
70%
RS = 150m
L = 33µH
TA = 25°C
2 LEDs
CTRL Open
60%
50%
40%
30%
20%
10%
0%
6 9 12 15 18 21 24 27 30 33 36
INPUT VOLTAGE (V)
Figure 13 Duty Cycle vs. Input Voltage
800
700
600
RS = 300m
L = 68µH
TA = 25°C
CTRL Open
500
Figure 14 Efficiency vs. Input Voltage
0.36
0.35
0.34
400
0.33
300
1 LED
200
7 LEDs 8 LEDs
5 LEDs 6 LEDs
100
3 LEDs 4 LEDs
2 LEDs
06 9 12 15 18 21 24 27 30 33 36
INPUT VOLTAGE (V)
Figure 15 Switching Frequency vs. Input Voltage
0.74
0.72
RS = 150m
L = 68µH
TA = 25°C
CTRL Open
0.70
2 LEDs
0.68
3 LEDs 4 LEDs
1 LED
0.66
0.64
5 LEDs 6 LEDs 7 LEDs
8 LEDs
0.62
0.32
0.31
0.3
6 9 12 15 18 21 24 27 30 33 36
INPUT VOLTAGE (V)
Figure 16 330mA LED Current vs. Input Voltage
1.10
RS = 100m
2 LEDs
L = 68µH
TA = 25°C
1.05
3
4
LEDs
LEDs
5
6
LEDs
LEDs
VCTRL = Open
7 LEDs
8 LEDs
1 LED
1.00
0.95
0.60
6 9 12 15 18 21 24 27 30 33 36
INPUT VOLTAGE (V)
Figure 17 670mA LED Current vs. Input Voltage
0.90
6
9 12 15 18 21 24 27 30 33 36
INPUT VOLTAGE (V)
Figure 18 1A LED Current vs. Input Voltage
AL8807A
Document number: DS35990 Rev. 2 - 2
7 of 20
www.diodes.com
March 2013
© Diodes Incorporated
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