AAT2847
Four-Channel Backlight Driver with Dual LDOs
Typical Characteristics
Shutdown Current vs. Input Voltage
(
V
EN/SET
= V
ENA/ENB
= 0V)
20
Backlight Operating Characteristic
(V
IN
= 3.7V; 1.5X Mode; 20mA/Channel Load;
AC Coupled)
V
IN
(20mV/div)
V
OUT
(40mV/div)
Shutdown Current (nA)
15
-40°C
10
5
25°C
85°C
V
DX
(20mA/div)
0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Time (500ns/div)
Backlight Operating Characteristic
(V
IN
= 3.5V; 1.5X Mode; 14mA/Channel Load;
AC Coupled)
V
IN
(20mV/div)
V
OUT
(40mV/div)
V
IN
(20mV/div)
V
OUT
(40mV/div)
Backlight Operating Characteristic
(V
IN
= 2.9V; 2X Mode; 20mA/Channel Load;
AC Coupled)
V
DX
(20mA/div)
V
DX
(40mA/div)
Time (500ns/div)
Time (500ns/div)
Backlight Operating Characteristic
(V
IN
= 2.9V; 2X Mode; 14mA/Channel Load;
AC Coupled)
V
IN
(20mV/div)
V
OUT
(40mV/div)
V
DX
(40mA/div)
Time (500ns/div)
2847.2007.09.1.0
7
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
