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參數(shù)資料
| 型號： | AAT1236IRN-T1 |
| 廠商： | Advanced Analog Technology,lnc. |
| 元件分類： | LED驅(qū)動器 |
| 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)動程序 |
| 文件頁數(shù)： | 7/24頁 |
| 文件大?。?/td> | 1009K |
| 代理商： | AAT1236IRN-T1 |
AAT1236
High Efficiency White LED Drivers
for Backlight and Keypad
1236.2007.02.1.1
7
Typical Characteristics
Switching Frequency vs.
Supply Voltage and Temperature
Supply Voltage (V)
S
0.0
0.5
1.0
1.5
2.0
2.5
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
-40
°
C
25
°
C
+85
°
C
Output Ripple
(All Channels = 10mA)
Time (200ns/div)
O
S
I
12.5
13.0
13.5
0.0
0.5
14V
0V
Output Ripple
(All Channels = 20mA)
Time (200ns/div)
O
S
I
13.5
14.0
14.5
0.0
0.5
1.0
16V
0V
Shutdown Operation
(All Channels)
Time (50μs/div)
Enable (V)
I
GROUP_A
(mA)
I
GROUP_B
(mA)
I
INDUCTOR
(A)
0
50
0
50
0
0.5
0
5
LED Current Accuracy vs. Temperature
(All Channels = 20mA)
Temperature (
°
C)
L
-6
-5
-4
-3
-2
-1
0
1
2
3
4
-40
-15
10
35
60
85
I
A2
I
A3
I
B1
I
B2, A1
LED Current vs. Temperature
(All Channels = 20mA)
Temperature (
°
C)
L
19.0
19.2
19.4
19.6
19.8
20.0
20.2
20.4
20.6
20.8
21.0
21.2
-40
-15
10
35
60
85
I
A1
I
A2
I
A3
I
B1
I
B2
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