AAT2847IML-EE-T1 Advanced Analog Technology, Inc., AAT2847IML-EE-T1 Datasheet - Page 8

• Manufacturer Part Number: AAT2847IML-EE-T1
• Description: Four-Channel Backlight Driver with Dual LDOs
• Manufacturer: Advanced Analog Technology, Inc.

Typical Characteristics
(100mA/div)
(200mA/div)
(500mV/div)
(500mV/div)
8
8
ChargePump
ChargePump
-0.5
-1.0
1.0
0.5
0.0
(2V/div)
(2V/div)
(2V/div)
(2V/div)
V
V
0.1
EN/SET
EN/SET
V
V
V
V
OUT
OUT
DX
I
DX
I
IN
IN
(20mA/Channel; Address 0, Data 1; V
(20mA/Channel; Address 0, Data 1; V
LDOA/LDOB Load Regulation
Turn On to 1X Mode Backlight
Turn On to 2X Mode Backlight
1
TM
TM
Load Current (mA)
Time (500ns/div)
Time (200µs/div)
10
LDOB
LDOA
100
IN
IN
= 4.2V)
= 3.2V)
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
1000
Four-Channel Backlight Driver with Dual LDOs
Four-Channel Backlight Driver with Dual LDOs
(200mA/div)
(20mA/div)
(500mV/div)
(2V/div)
(2V/div)
-0.500
-1.000
1.000
0.500
0.000
(2V/div)
(2V/div)
V
V
EN/SET
V
EN/SET
2.7
I
V
OUT
LED
V
OUT
(20mA/Channel; Address 0, Data 1; V
DX
I
IN
(20mA/Channel; Address 0, Data 1; V
Turn Off from 1.5X Mode Backlight
Turn On to 1.5X Mode Backlight
3.1
LDOA/LDOB Line Regulation
PRODUCT DATASHEET
PRODUCT DATASHEET
3.5
Input Voltage (V)
Time (100µs/div)
Time (200µs/div)
3.9
AAT2847
AAT2847
4.3
LDOB
LDOA
2847.2008.05.1.2
2847.2008.05.1.2
4.7
IN
IN
= 3.6V)
5.1
= 3.5V)
5.5