AAT2806
Dual High Efficiency Charge Pump
for White LED and Flash Applications
Typical Characteristics–White LED Backlight Driver Section
Input Ripple vs. Input Voltage
Enable Threshold High vs. Input Voltage
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
18
16
14
12
10
8
-40°C
20mA
25°C
85°C
6
4
10mA
2
0
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
2.50 2.67 2.84 3.01 3.18 3.35 3.52 3.69 3.86 4.03 4.20
Input Voltage (V)
Input Voltage (V)
Enable Threshold Low vs. Input Voltage
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
-40°C
25°C
85°C
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
Input Voltage (V)
2806.2006.04.1.8
9