AAT1235IRN-T1 AnalogicTech, AAT1235IRN-T1 Datasheet - Page 6

• Manufacturer Part Number: AAT1235IRN-T1
• Description: High Efficiency White LED Drivers for Backlight and Keypad
• Manufacturer: AnalogicTech

Typical Characteristics
I
I
6
SwitchReg
GROUP_A
GROUP_B
I
INDUCTOR
Enable (V)
21.2
21.0
20.8
20.6
20.4
20.2
20.0
19.8
19.6
19.4
19.2
19.0
13.5
13.0
12.5
-40
(mA)
(mA)
(A)
I
B1
LED Current vs. Temperature
0.5
I
50
A3
0
5
0
0
TM
-15
I
(All Channels = 20mA)
B2
(All Channels = 10mA)
Shutdown Operation
Output Ripple
Temperature (° ° C)
Time (200ns/div)
Time (50µs/div)
10
(All Channels)
0V
35
14V
High Efficiency White LED Drivers for Backlight and Keypad
60
I
A1
I
A2
0.5
0.0
50
0
w w w . a n a l o g i c t e c h . c o m
85
2.5
2.0
1.5
1.0
0.5
0.0
-1
-2
-3
-4
-5
-6
4
3
2
1
0
-40
14.5
14.0
13.5
2.7
LED Current Accuracy vs. Temperature
Supply Voltage and Temperature
3.1
I
A2
-15
Switching Frequency vs.
PRODUCT DATASHEET
I
B1
(All Channels = 20mA)
(All Channels = 20mA)
3.5
Output Ripple
Supply Voltage (V)
Temperature (° ° C)
Time (200ns/div)
10
+85°C
3.9
I
B2, A1
AAT1235
4.3
35
I
A3
0V
1235.2009.09.1.2
4.7
16V
60
25°C
-40°C
5.1
1.0
0.5
0.0
5.5
85