AAT2847IML-EE-T1 Advanced Analog Technology, Inc., AAT2847IML-EE-T1 Datasheet - Page 5

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

1. The AAT2847 is guaranteed to meet performance specifications over the –40˚C to +85°C operating temperature range is assured by design, characterization and correlation
2. V
ChargePump
ChargePump
Electrical Characteristics
V
are at T
2847.2008.05.1.2
2847.2008.05.1.2
LDOs: AAT2847-EE
LDOs: AAT2847-QG
LDOs: AAT2847-QI
LDO Logic Control – All Options
IN
V
V
with statistical process controls.
LDO[A/B]
LDO[A/B]
Symbol
∆V
∆V
V
DO
V
= 3.6V; C
V
V
OUT
FBA
V
V
∆V
I
LDOA
LDOB
LDOA
LDOB
PSRR
PSRR
PSRR
is defined as V
IH(ENA)
LDO[A/B]
LDO[A/B]
IL(ENA)
EN[A/B]
IH(ENB)
V
V
V
IL(ENB)
I
I
I
, V
*∆V
OUT
IN
DO
IN
DO
IN
DO
*∆V
*∆V
A
FBB
/
,
,
= 25°C.
IN
/
/
IN
IN
IN
IN
Description
IN Operating Current
Feedback Voltage
Dropout Voltage
Line Regulation
Power Supply Rejection Ratio
IN Operating Current
LDOA Voltage Tolerance
LDOB Voltage Tolerance
LDOA Dropout Voltage
LDOA, LDOB Line Regulation
LDOA, LDOB Power Supply
Rejection Ratio
IN Operating Current
LDOA Voltage Tolerance
LDOB Voltage Tolerance
LDOA Dropout Voltage
LDOA, LDOB Line Regulation
LDOA, LDOB Power Supply
Rejection Ratio
ENA, ENB Input Logic Low
Threshold Voltage
ENA, ENB Input Logic High
Threshold Voltage
ENA, ENB Input Leakage
= C
- LDOA when LDOA is 98% of nominal.
TM
TM
LDOA
= C
LDOB
= 2.2µF; C
2
2
1
OUT
Conditions
V
V
I
I
V
I
V
V
I
I
I
V
I
V
V
I
I
I
V
I
V
LDO[A/B]
LDO[A/B]
LDO[A/B]
LDOA
LDOB
LDOA
LDO[A/B]
LDOA
LDOB
LDOA
LDO[A/B]
ENA
ENA
IN
ENA
ENA
IN
ENA
ENA
IN
EN[A/B]
= 1µF; C1 = C2 = 1µF; T
= (V
= (LDOA + 1V) to 5V; V
= (LDO[A/B] + 1V) to 5V
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
= V
= V
= V
= V
= V
= V
= 1mA to 150mA
= 1mA to 150mA
= 150mA
= 1mA to 150mA
= 1mA to 150mA
= 150mA
= V
= 1mA to 200mA
= 150mA
=10mA, 1kHz
=10mA, 1kHz
= 10mA, 1kHz
LDO[A/B]
ENB
IN
ENB
IN
ENB
IN
; V
; V
; V
IN
= V
= V
= V
ENB
ENB
ENB
= 5V
Four-Channel Backlight Driver with Dual LDOs
Four-Channel Backlight Driver with Dual LDOs
+ 1V) to 5V
IN
IN
IN
= 0V; V
= 0V; V
= 0V; V
, V
, V
, V
EN/SET
EN/SET
EN/SET
EN/SET
EN/SET
EN/SET
= 0V, No Load
= 0V, No Load
= 0V, No Load
IN
= 0V; No Load
= 0V; No Load
= 0V; No Load
= (LDOB + 1.2V) to 5V
A
= 25°C, unless otherwise noted. Typical values
PRODUCT DATASHEET
PRODUCT DATASHEET
2.716
1.455
2.716
1.746
Min
1.17
AAT2847
AAT2847
1.4
-1
Typ
0.09
0.09
0.09
150
150
150
1.2
2.8
1.5
2.8
1.8
80
60
50
80
60
50
80
60
50
2.884
1.545
2.884
1.854
Max
1.23
150
112
300
150
112
300
150
112
300
0.4
1
Units
%/V
%/V
%/V
mV
mV
mV
µA
µA
µA
µA
dB
dB
dB
V
V
V
V
V
V
V
5
5