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| 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(pán)驅(qū)動(dòng)程序 |
| 文件頁(yè)數(shù)： | 8/24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
8
1236.2007.02.1.1
Typical Characteristics
Soft Start Operation
(All Channels = 20mA)
Time (200μs/div)
SCL (V)
SDA (V)
V
OUT
(V)
I
INDUCTOR
(A)
0
0
0.5
0
14V
5
0
5
Low Side Switch On Resistance
vs. Supply Voltage and Temperature
Supply Voltage (V)
R
D
Ω
)
40
60
80
100
120
140
160
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
+120
°
C
+100
°
C
+25
°
C
+85
°
C
Input Disconnect Switch Resistance vs.
Supply Voltage and Temperature
Supply Voltage (V)
R
D
Ω
)
140
160
180
200
220
240
260
280
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
+120
°
C
+100
°
C
+85
°
C
+25
°
C
Enable Threshold High vs.
Supply Voltage and Temperature
Supply Voltage (V)
E
0.7
0.8
0.9
1.0
1.1
1.2
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
+85°C
-40°C
25°C
Enable Threshold Low vs.
Supply Voltage and Temperature
Supply Voltage (V)
E
0.6
0.7
0.8
0.9
1.0
1.1
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
+85
°
C
-40
°
C
25
°
C
Line Transient
(All Channels = 20mA)
Time (50μs/div)
I
O
3.0
3.5
4.0
4.5
13.8
13.9
14.0
14.1
14.2
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