PRODUCT DATASHEET
AAT2860
ChargePump
TM
Backlight/Flash LED Driver and Multiple LDO Lighting Management Unit
Typical Characteristics
Flash Mode Turn-On Characteristic
(V
IN
= 2.8V; 300mA/Channel; 2x Mode)
V
FL_LVL
(2V/div)
V
OUT
(2V/div)
V
FLX
(2V/div)
I
IN
(200mA/div)
Time (50µs/div)
4
2
0
600
400
200
0
4
2
0
Backlight Mode Turn-On Characteristic
(V
IN
= 4.6V; 30mA/Channel; 1x Mode)
4
V
SDA
(2V/div)
V
OUT
(2V/div)
V
BLX
(2V/div)
I
IN
(100mA/div)
Time (100µs/div)
4
2
0
2
0
200
100
0
Backlight Mode Turn-On Characteristic
(V
IN
= 3.6V; 30mA/Channel; 1.5x Mode)
4
Backlight Mode Turn-On Characteristic
(V
IN
= 3.2V; 30mA/Channel; 2x Mode)
4
V
SDA
(2V/div)
V
OUT
(2V/div)
V
BLX
(2V/div)
I
IN
(200mA/div)
Time (100µs/div)
4
2
0
2
0
V
SDA
(2V/div)
V
OUT
(2V/div)
V
BLX
(2V/div)
4
2
0
2
0
400
200
0
400
I
IN
(200mA/div)
Time (100µs/div)
200
0
Backlight Mode Turn-Off Characteristic
(V
IN
= 3.6V; 30mA/Channel; 1.5x Mode)
4
Operating Characteristic
(30mA/Channel
Backlight; 1.5x Mode; V
IN
= 3.6V;
C
OUT
= 2.2µF)
Charge Pump
V
OUT
(AC coupled) (bottom) (mV)
V
IN
(AC coupled) (top) (mV)
20
10
0
100
50
0
-50
V
SDA
(2V/div)
V
DIODE
(2V/div)
2
0
4
2
0
2
I
IN
(2mA/div)
0
Time (200µs/div)
Time (500ns/div)
8
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2860.2008.05.1.0
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