AAT1236 Analogic Corporation, AAT1236 Datasheet - Page 6

• Manufacturer Part Number: AAT1236
• Manufacturer: Analogic Corporation

Typical Characteristics
6
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
(Group A and B On)
I
Supply Voltage (V)
A1
LED Current (mA)
LED Current (mA)
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
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
84
83
82
81
80
79
78
77
-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
3.5
IN
= 4.2V
Supply Voltage (V)
Supply Voltage (V)
LED Current (mA)
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
1236.2007.01.1.0
5.1
17.7
5.2
5.5
5.5
20