AAT2847IML-QG-T1 Advanced Analog Technology, Inc., AAT2847IML-QG-T1 Datasheet - Page 4

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

Electrical Characteristics
V
are at T
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. Current matching is defined as the deviation of any sink current from the average of all active channels.
4
4
ChargePump
ChargePump
Power Supply
Charge Pump
EN/SET Logic Control
T
T
IN
Symbol
with statistical process controls.
EN/SET_HI_MIN
EN/SET_HI_MAX
V
V
T
I
= 3.6V; C
IL(EN/SET)
IH(EN/SET)
(D-Match)
EN/SET LO
I
I
T
T
EN/SET
T
V
f
T
V
SHDN
I
I
CLK
HYS
DX
OFF
LAT
IN
TH
SD
IN
A
= 25°C.
Description
Input Voltage Range
Total Shutdown Current at IN
Input Operating Current
Average Current Accuracy
Current Matching
1x to 1.5x or 1.5x to 2x Transition
Threshold at Any DX Pin
Clock Frequency
Over-Temperature Shutdown Threshold
Over-Temperature Shutdown Hysteresis
EN/SET Low Time
Minimum EN/SET High Time
Maximum EN/SET High Time
EN/SET Off Timeout
EN/SET Latch Timeout
EN/SET Logic Low Threshold Voltage
EN/SET Logic High Threshold Voltage
EN/SET Input Leakage
IN
= C
TM
TM
LDOA
= C
LDOB
2
= 2.2µF; C
1
OUT
= 1µF; C1 = C2 = 1µF; T
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
Conditions
V
1x Mode, 3.0 ≤ V
V
1.5x Mode, 3.0 ≤ V
V
2x Mode, 3.0 ≤ V
V
DATA 1, 20mA Range
DATA 2, ADDRESS 4
DATA 1, 30mA Range
DATA 1, 15mA Range
V
20mA Range
V
EN/SET
ENA
ENA
ENA
IN
EN/SET
- V
= V
= V
= V
Four-Channel Backlight Driver with Dual LDOs
Four-Channel Backlight Driver with Dual LDOs
F
= V
= V
= 1.5V, 20mA Range
ENB
ENB
ENB
ENA
IN
= 0V
= 0V
= 0V
= 5V
= V
IN
IN
ENB
≤ 5.5, Active, No Load,
IN
≤ 5.5, Active, No Load,
= 0V
≤ 5.5, Active, No Load,
A
= 25°C, unless otherwise noted. Typical values
PRODUCT DATASHEET
PRODUCT DATASHEET
AAT2847
AAT2847
Min
2.7
0.9
0.3
1.4
18
-1
Typ
150
140
1.0
0.5
20
30
15
15
50
1
2847.2008.05.1.2
2847.2008.05.1.2
Max
500
500
5.5
1.0
1.0
4.0
5.0
1.1
0.4
22
75
75
1
1
Units
MHz
mA
mA
mV
µA
µA
°C
°C
µs
ns
µs
µs
µs
%
V
V
V