参数资料
型号: AL8805W5-7
厂商: Diodes Inc
文件页数: 8/16页
文件大小: 0K
描述: IC REG SW CONV BUCK ASYNC SOT-23
标准包装: 1
恒定电流:
拓扑: PWM,降压(降压)
输出数: 1
内部驱动器:
类型 - 主要: 通用
频率: 1MHz
电源电压: 6 V ~ 30 V
安装类型: 表面贴装
封装/外壳: SC-74A,SOT-753
供应商设备封装: SOT-25
包装: 标准包装
其它名称: AL8805W5-7DIDKR
AL8805
Typical Performance Characteristics (cont.) (1A LED Current) (@T A = +25°C, unless otherwise specified.)
10%
8%
250
6%
3 LEDs
5 LEDs
200
4%
2 LEDs
4 LEDs
6 LEDs 7 LEDs
8 LEDs
2%
0%
-2%
-4%
1 LED
150
100
-6%
-8%
L = 100 μ H
R S = 100m Ω
T A = 25 ° C
50
-10%
6
9
12 15 18 21 24 27 30 33 36
0
6
9
12 15 18 21 24 27 30 33 36
INPUT VOLTAGE (V)
Figure 24 LED Current Deviation vs. Input Voltage
10%
INPUT VOLTAGE (V)
Figure 25 Switching Frequency vs. Input Voltage
350
5 LEDs
6 LEDs 7 LEDs
8%
6%
4%
3 LEDs
2 LEDs 4 LEDs
8 LEDs
300
250
L = 68 μ H
R S = 100m Ω
T A = 25 ° C
2%
0%
-2%
1 LED
200
150
-4%
100
1 LED
2 LEDs 3 LEDs
-6%
-8%
6
L =68 μ H
R S = 100m Ω
T A = 25 ° C
9 12 15 18 21 24 27 30 33 36
50
0
6
9 12 15 18 21 24 27 30 33 36
8 LEDs
6 LEDs 7 LEDs
4 LEDs
5 LEDs
INPUT VOLTAGE (V)
Figure 26 LED Current Deviation vs. Input Voltage
INPUT VOLTAGE (V)
Figure 27 Switching Frequency vs. Input Voltage
10%
2 LEDs
4 LEDs
700
8%
6%
3 LEDs
6 LEDs
5 LEDs
600
4%
8 LEDs
500
2%
0%
-2%
-4%
1 LED
400
300
200
-6%
-8%
L = 33 μ H
R S = 100m Ω
T A = 25 ° C
100
-10%
6 9 12 15 18 21 24 27 30 33 36
INPUT VOLTAGE (V)
Figure 28 LED Current Deviation vs. Input Voltage
0
6 9 12 15 18 21 24 27 30 33 36
INPUT VOLTAGE (V)
Figure 29 Switching Frequency vs. Input Voltage
AL8805
Document number: DS35030 Rev. 4 - 2
8 of 16
www.diodes.com
July 2012
? Diodes Incorporated
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