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AAT1235 PDF预览

AAT1235

更新时间: 2022-04-23 23:00:11
品牌 Logo 应用领域
ANALOGICTECH 驱动器
页数 文件大小 规格书
21页 958K
描述
High Efficiency White LED Drivers for Backlight and Keypad

AAT1235 数据手册

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AAT1235  
High Efficiency White LED Drivers  
for Backlight and Keypad  
Typical Characteristics  
Efficiency vs. LED Current  
(Group B On; Group A Off)  
Efficiency vs. LED Current  
(Group B Off; Group A On)  
83  
82  
81  
80  
79  
78  
77  
76  
84  
VIN = 5V  
VIN = 5V  
83  
82  
81  
VIN = 3.6V  
VIN = 3.6V  
80  
VIN = 4.2V  
79  
VIN = 4.2V  
78  
77  
1.6  
3.9  
6.2  
8.5  
10.8  
13.1  
15.4  
17.7  
20  
20  
5.5  
1.6  
3.9  
6.2  
8.5  
10.8  
13.1  
15.4  
17.7  
20  
Output LED Current (mA)  
Output LED Current (mA)  
Efficiency vs. LED Current  
(Group A and B On)  
LED Current Accuracy vs. Supply Voltage  
3
86  
85  
84  
83  
82  
81  
80  
79  
2
1
IB1, B2, A1, A2, A3  
VIN = 5V  
0
VIN = 3.6V  
VIN = 4.2V  
-1  
-2  
-3  
2.7  
3.1  
3.4  
3.8  
4.1  
4.5  
4.8  
5.2  
5.5  
1.6  
3.9  
6.2  
8.5  
10.8  
13.1  
15.4  
17.7  
Output LED Current (mA)  
Supply Voltage (V)  
LED Current vs. Supply Voltage  
Shutdown Current vs.  
Supply Voltage and Temperature  
20.0  
19.8  
19.6  
19.4  
19.2  
19.0  
18.8  
18.6  
18.4  
0.7  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
0.0  
IB1  
IA1  
25°C  
85°C  
IA3  
IA2  
IB2  
-40°C  
2.7  
3.1  
3.5  
3.9  
4.3  
4.7  
5.1  
5.5  
2.7  
3.1  
3.4  
3.8  
4.1  
4.5  
4.8  
5.2  
Supply Voltage (V)  
Supply Voltage (V)  
1235.2007.02.1.1  
5

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