AAT1235 Analogic Corporation, AAT1235 Datasheet - Page 5

• Manufacturer Part Number: AAT1235
• Manufacturer: Analogic Corporation

Typical Characteristics
1235.2007.01.1.0
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
(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
V
= 4.2V
I
B2
IN
10.8
10.8
4.1
V
= 5V
I
IN
B1
V
= 4.2V
IN
13.1
13.1
4.5
= 3.6V
I
A2
15.4
15.4
4.8
V
IN
= 3.6V
17.7
17.7
5.2
I
A3
20
5.5
20
High Efficiency White LED Drivers
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
for Backlight and Keypad
Shutdown Current vs.
(Group B Off; Group A On)
6.2
3.4
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
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