AAT2847
Four-Channel Backlight Driver with Dual LDOs
Pin Configuration
AAT2847-EE
TQFN34-20
(Top View)
AAT2847-QG/QI
TQFN34-20
(Top View)
1
2
3
4
5
6
16
15
14
13
12
11
1
2
3
4
5
6
16
D2
D1
LDOB
IN
PGND
IN
D4
D2
D1
LDOB
IN
PGND
IN
D4
15
14
13
12
11
ENB
EN/SET
C1+
C1-
OUT
ENB
EN/SET
C1+
C1-
OUT
1
Absolute Maximum Ratings
TA = 25°C, unless otherwise noted. Pin descriptions below apply to AAT2847-EE (AAT2847-QG/QI)
Symbol Description
Value
Units
VN
VN
[IN, OUT, D1, D2, D3, D4] to GND
[C1+, C1-, C2+, C2-] to GND
-0.3 to 6.0
-0.3 to VOUT + 0.3
V
V
VN
-0.3 to VIN + 0.3
[LDOA, LDOB, FBA, FBB, EN/SET, ENA, ENB] to GND
Operating Temperature Range
V
TJ
-40 to 150
300
°C
°C
TLEAD
Maximum Soldering Temperature (at leads, 10 sec)
2, 3
Thermal Information
Symbol Description
Value
Units
θJA
PD
Thermal Resistance
Maximum Power Dissipation
50
2
°C/W
W
1. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at conditions
other than the operating conditions specified in not implied. Only one Absolute Maximum Rating should be applied at any one time.
2. Derate 20mW/°C above 40°C ambient temperature.
3. Mounted on a FR4 circuit board.
2847.2007.09.1.0
3
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
