Six-Channel White LED Backlight
Charge Pump with Flash
Typical Characteristics–White LED Backlight Driver Section
Unless otherwise noted, V
IN
= 3.6V, C
IN
= C
OUT
= C
1
= C
2
= C
3
= 1.0μF; T
A
= 25°C.
Load Characteristics
(V
IN
= 3.8V; 1.5X Mode; 15mA Load)
V
IN
(40mV/div)
CP
(40mV/div)
V
IN
(40mV/div)
CP
(40mV/div)
AAT2803
Load Characteristics
(V
IN
= 2.9V; 2X Mode; 15mA Load)
V
SINK
(40mV/div)
V
SINK
(40mV/div)
500ns/div
500ns/div
Load Characteristics
(V
IN
= 4.0V; 1.5X Mode; 20mA Load)
V
IN
(40mV/div)
CP
(40mV/div)
V
IN
(40mV/div)
CP
(40mV/div)
Load Characteristics
(V
IN
= 3.1V; 2X Mode; 20mA Load)
V
SINK
(40mV/div)
V
SINK
(40mV/div)
500ns/div
500ns/div
Load Characteristics
(V
IN
= 4.3V; 1.5X Mode; 30mA Load)
V
IN
(40mV/div)
CP
(40mV/div)
V
IN
(40mV/div)
CP
(40mV/div)
Load Characteristics
(V
IN
= 3.6V; 2X Mode; 30mA Load)
V
SINK
(40mV/div)
V
SINK
(40mV/div)
500ns/div
500ns/div
2803.2006.12.1.6
9
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
