AL8807A(2012) Просмотр технического описания (PDF) - Diodes Incorporated.
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Компоненты Описание
производитель
AL8807A
(Rev.:2012)
(Rev.:2012)
Diodes Incorporated.
AL8807A Datasheet PDF : 20 Pages
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AL8807A
Typical Performance Characteristics (670mA LED Current) (@TA = +25°C, unless otherwise specified.)
10
350
L = 100µH
8
300
RS = 150mΩ
TA = 25°C
6
VCTRL = Open
4
250
2
0
-2
-4
-6
-8
-10
6 9 12 15 18 21 24 27 30 33 36
INPUT VOLTAGE (V)
Figure 19 LED Current Deviation vs. Input Voltage
200
150
1 LED
100
50
5 LEDs
7 LEDs 8 LEDs
3 LEDs4 LEDs
6 LEDs
2 LEDs
0
6 9 12 15 18 21 24 27 30 33 36
INPUT VOLTAGE (V)
Figure 20 Switching Frequency vs. Input Voltage
10
500
L = 68µH
8
450 RS = 150mΩ
6
400
TA = 25°C
VCTRL = Open
4
350
2
300
0
-2
-4
-6
-8
-10
6 9 12 15 18 21 24 27 30 33 36
INPUT VOLTAGE (V)
Figure 21 LED Current Deviation vs. Input Voltage
250
200
1 LED
150
100
7 LEDs 8 LEDs
50
3
LEDs
4
5 LEDs
LEDs
6
LEDs
0 2 LEDs
6 9 12 15 18 21 24 27 30 33 36
INPUT VOLTAGE (V)
Figure 22 Switching Frequency vs. Input Voltage
10
800
L = 33µH
8
700 RS = 150mΩ
TA = 25°C
6
VCTRL = Open
600
4
2
500
0
400
-2
-4
-6
-8
-10
6 9 12 15 18 21 24 27 30 33 36
INPUT VOLTAGE (V)
Figure 23 LED Current Deviation vs. Input Voltage
300
1 LED
200
7 LEDs 8 LEDs
100
3 LEDs
5 LEDs
6 LEDs
2 LEDs 4 LEDs
0
6 9 12 15 18 21 24 27 30 33 36
INPUT VOLTAGE (V)
Figure 24 Switching Frequency vs. Input Voltage
AL8807A
Document number: DS35990 Rev. 1 - 2
8 of 20
www.diodes.com
September 2012
© Diodes Incorporated
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