参数资料
型号: AL8805W5-7
厂商: Diodes Inc
文件页数: 4/16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 (@T A = +25°C, unless otherwise specified.)
V SET IN
400
350
300
250
V CRTL = 0V
=V
T A = 25°C
900
800
700
600
L = 33μH
L = 68μH
V IN = 12V
1 LED
R SET = 150m Ω
T A = 25°C
500
200
400
150
300
100
50
200
100
L = 100μH
0
0 6 12 18 24 30 36
V IN (V)
Figure 1 Supply Current (not switching) vs. Input Voltage
1
80
0
0
1 2 3 4 5
V CTRL (V)
Figure 2 Switching Frequency vs. V CTRL
V SET IN = 12V
0.9
V IN = 12V
1 LED
L = 68μH
R SET = 100m Ω
60
=V
T A = 25°C
0.8
0.7
T A = 25°C
40
0.6
0.5
0.4
0.3
0.2
0.1
R SET = 150m Ω
R SET = 300m Ω
20
0
-20
-40
Figure 4 I CTRL CTRL
0
0
1 2 3 4
V CTRL (V)
Figure 3 LED Current vs. V CTRL
5
-60
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
V CTRL (V)
vs. V
3
2.52
V CTRL = Open
V SET IN = 12V
2.5
2
2.51
=V
1.5
2.50
1
2.49
V CTRL = Open
0.5
V SET = V IN
T A = 25°C
0
0
3
6
9 12 15 18 21 24 27 30 33 36
2.48
-40
-15 10 35 60 85
110
V IN (V)
Figure 5. V CTRL vs. Input Voltage
(CTRL Pin Open Circuit)
AMBIENT TEMPERATURE (°C)
Figure 6 V CTRL vs. Temperature
AL8805
Document number: DS35030 Rev. 4 - 2
4 of 16
www.diodes.com
July 2012
? Diodes Incorporated
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