AAT2806_07 Datasheet, PDF (9/16 Pages) Advanced Analogic Technologies – Dual High Efficiency Charge Pump for White LED and Flash Applications

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
18
16
14
12
20mA
10
8
6
4
10mA
2
0
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)
1.2
1.1
1.0
-40°C
0.9
0.8
0.7
0.6
25°C
85°C
0.5
0.4
0.3
0.2
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)
Enable Threshold Low vs. Input Voltage
1.2
1.1
1.0
0.9
-40°C
0.8
0.7
0.6
0.5
25°C
85°C
0.4
0.3
0.2
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)
2806.2007.09.1.9
9