AAT1235IRN-T1 AnalogicTech, AAT1235IRN-T1 Datasheet - Page 5

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

SwitchReg
Typical Characteristics
1235.2009.09.1.2
83
82
81
80
79
78
77
76
20.0
19.8
19.6
19.4
19.2
19.0
18.8
18.6
18.4
86
85
84
83
82
81
80
79
1.6
1.6
2.7
LED Current vs. Supply Voltage
3.9
3.9
V
3.1
IN
Efficiency vs. LED Current
Efficiency vs. LED Current
= 5V
TM
(Group B On; Group A Off)
6.2
6.2
3.4
Output LED Current (mA)
Output LED Current (mA)
(Group A and B On)
I
Supply Voltage (V)
A1
8.5
8.5
V
3.8
IN
= 4.2V
V
I
B2
IN
10.8
10.8
4.1
= 5V
V
I
IN
B1
V
= 4.2V
IN
13.1
13.1
= 3.6V
4.5
I
A2
15.4
15.4
High Efficiency White LED Drivers for Backlight and Keypad
V
4.8
IN
= 3.6V
17.7
17.7
5.2
I
A3
w w w . a n a l o g i c t e c h . c o m
20
5.5
20
84
83
82
81
80
79
78
77
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
-1
-2
-3
3
2
1
0
LED Current Accuracy vs. Supply Voltage
1.6
2.7
2.7
Supply Voltage and Temperature
3.9
3.1
3.1
Efficiency vs. LED Current
Shutdown Current vs.
(Group B Off; Group A On)
6.2
3.4
PRODUCT DATASHEET
V
Output LED Current (mA)
3.5
IN
= 4.2V
Supply Voltage (V)
Supply Voltage (V)
V
8.5
3.8
85°C
IN
3.9
I
= 5V
B1, B2, A1, A2, A3
AAT1235
10.8
4.1
V
4.3
IN
13.1
4.5
= 3.6V
25°C
4.7
15.4
4.8
-40°C
5.1
17.7
5.2
5.5
5.5
20
5