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參數(shù)資料
| 型號(hào)： | AAT1236IRN-T1 |
| 廠商： | Advanced Analog Technology,lnc. |
| 元件分類： | LED驅(qū)動(dòng)器 |
| 英文描述： | High Efficiency White LED Drivers for Backlight and Keypad |
| 中文描述： | 高效率白光LED的背光和鍵盤驅(qū)動(dòng)程序 |
| 文件頁(yè)數(shù)： | 6/24頁(yè) |
| 文件大小： | 1009K |
| 代理商： | AAT1236IRN-T1 |
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AAT1236
High Efficiency White LED Drivers
for Backlight and Keypad
6
1236.2007.02.1.1
Typical Characteristics
Shutdown Current vs.
Supply Voltage and Temperature
Supply Voltage (V)
S
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
85
°
C
25
°
C
-40
°
C
LED Current vs. Supply Voltage
Supply Voltage (V)
L
18.4
18.6
18.8
19.0
19.2
19.4
19.6
19.8
20.0
2.7
3.1
3.4
3.8
4.1
4.5
4.8
5.2
5.5
I
B2
I
B1
I
A3
I
A2
I
A1
LED Current Accuracy vs. Supply Voltage
Supply Voltage (V)
A
-3
-2
-1
0
1
2
3
2.7
3.1
3.4
3.8
4.1
4.5
4.8
5.2
5.5
I
B1, B2, A1, A2, A3
Efficiency vs. LED Current
(Group A and B On)
LED Current (mA)
E
79
80
81
82
83
84
85
86
1.6
3.9
6.2
8.5
10.8
13.1
15.4
17.7
20
V
IN
= 5V
V
IN
= 4.2V
V
IN
= 3.6V
Efficiency vs. LED Current
(Group B Off; Group A On)
LED Current (mA)
E
77
78
79
80
81
82
83
84
1.6
3.9
6.2
8.5
10.8
13.1
15.4
17.7
20
V
IN
= 4.2V
V
IN
= 3.6V
V
IN
= 5V
Efficiency vs. LED Current
(Group B On; Group A Off)
LED Current (mA)
E
76
77
78
79
80
81
82
83
1.6
3.9
6.2
8.5
10.8
13.1
15.4
17.7
20
V
IN
= 4.2V
V
IN
= 3.6V
V
IN
= 5V
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