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AL8805W5-7 датащи(PDF) 4 Page - Diodes Incorporated

номер детали AL8805W5-7
подробное описание детали  HIGH EFFICIENCY 30V 1A BUCK LED DRIVER
PDF  16 Pages
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производитель  DIODES [Diodes Incorporated]
домашняя страница  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AL8805W5-7 датащи(HTML) 4 Page - Diodes Incorporated

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AL8805
HIGH EFFICIENCY 30V 1A BUCK LED DRIVER
AL8805
Document number: DS35030 Rev. 1 - 2
4 of 16
www.diodes.com
September 2010
© Diodes Incorporated
Typical Performance Characteristics (TA = 25°C unless otherwise stated)
0
50
100
150
200
250
300
350
400
0
5
10
15
20
25
30
VIN (V)
VCTRL = 0V
VSET = VIN
TA = 25°C
Figure 1 Supply current (not switching) vs Input voltage
L=33µH
L=68µH
L=100µH
0
100
200
300
400
500
600
700
800
900
01
2
34
5
VCTRL
VIN = 12V
1 LED
RSET = 150mΩ
TA = 25°C
Figure 2. switching frequency vs VCTRL
RSET = 150mΩ
RSET = 300mΩ
RSET = 100mΩ
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
012345
VCTRL (V)
VIN = 12V
1 LED
L = 68µH
TA = 25°C
Figure 3. LED current vs VCTRL
-60
-40
-20
0
20
40
60
80
0.00.5
1.01.5
2.02.5
3.03.5
4.04.5
5.05.5
VCTRL (V)
VSET = VIN = 12V
TA = 25°C
Figure 4. ICTRL vs VCTRL
0
0.5
1
1.5
2
2.5
3
0
5
10
15
20
25
30
VIN (V)
VCTRL = Open
VSET = VIN
TA = 25°C
Figure 5. VCTRL vs Input voltage
(CTRL pin open circuit)
2.48
2.49
2.50
2.51
2.52
-40
-15
10
35
60
85
110
Ambient Temperature (°C)
VCTRL = Open
VSET = VIN = 12V
F
igure 6. VCTRL vs temperature



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