AAT2847_08 Datasheet, PDF (7/20 Pages) Advanced Analogic Technologies – Four-Channel Backlight Driver with Dual LDOs

ChargePump^TM
PRODUCT DATASHEET
AAT2847
Four-Channel Backlight Driver with Dual LDOs
Typical Characteristics
Shutdown Current vs. Input Voltage
(V_EN/SET = V_ENA/ENB = 0V)
20
-40°C
15
10
25°C
85°C
5
0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Backlight Operating Characteristic
(V_IN = 3.7V; 1.5X Mode; 20mA/Channel Load;
AC Coupled)
V_IN
(20mV/div)
V_OUT
(40mV/div)
V_DX
(20mV/div)
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_DX
(20mV/div)
Time (500ns/div)
Backlight Operating Characteristic
(V_IN = 2.9V; 2X Mode; 20mA/Channel Load;
AC Coupled)
V_IN
(20mV/div)
V_OUT
(40mV/div)
V_DX
(40mV/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
(40mV/div)
Time (500ns/div)
2847.2008.05.1.2
www.analogictech.com
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