AAT2856INJ-EE-T1 Advanced Analog Technology, Inc., AAT2856INJ-EE-T1 Datasheet - Page 5

• Manufacturer Part Number: AAT2856INJ-EE-T1
• Description: High Current Charge Pump with Dual LDO for Backlight Applications
• Manufacturer: Advanced Analog Technology, Inc.

ChargePump
ChargePump
Typical Characteristics
(200mA/div)
(200mA/div)
2856.2008.02.1.3
2856.2008.02.1.3
(500mV/div)
(500mV/div)
100
(2V/div)
(2V/div)
(2V/div)
(2V/div)
90
80
70
60
50
40
30
2.7
V
V
V
V
Backlight Efficiency vs. Input Voltage
V
V
SINK
SINK
OUT
OUT
10.2mA/ch
I
I
EN
EN
IN
IN
3.1
0V
0V
0V
Turn On to 1X Mode Backlight
Turn On to 2X Mode Backlight
0V
0V
0V
3.5
TM
TM
(30mA/ch; Data 1; V
(30mA/ch; Data 1; V
0A
Input Voltage (V)
0A
3.9
High Current Charge Pump with Dual LDO for Backlight Applications
High Current Charge Pump with Dual LDO for Backlight Applications
Time (200µs/div)
Time (200µs/div)
1.6mA/ch
4.3
IN
IN
4.7
= 4.2V)
= 2.7V)
20mA/ch
5.1
w w w . a n a l o g i c t e c h . c o m
w w w . a n a l o g i c t e c h . c o m
5.5
(200mA/div)
(200mA/div)
(500mV/div)
20.5
19.5
18.5
Backlight Current Matching vs. Temperature
(2V/div)
(2V/div)
(2V/div)
(2V/div)
21
20
19
-40
V
V
V
V
V
SINK
OUT
OUT
I
I
EN
EN
IN
IN
Turn Off from 1.5X Mode Backlight
0V
Turn On to 1.5X Mode Backlight
-15
0V
0V
PRODUCT DATASHEET
PRODUCT DATASHEET
(30mA/ch; Data 1; V
(20mA/Ch; Data 1)
0A
Temperature (°C)
10
(30mA/ch; Data 1)
Time (200µs/div)
Time (100µs/div)
AAT2856
AAT2856
35
0V
IN
0V
0A
= 3.4V)
60
85
5
5