PRODUCT DATASHEET
AAT2856
ChargePump
TM
High Current Charge Pump with Dual LDO for Backlight Applications
Pin Configuration
TQFN44-28
(Top View)
OUT
AGND
AGND
BL6
BL5
ENA
BL4
28
27
26
25
24
23
22
21
20
19
18
17
16
15
8
9
10
11
12
13
14
BL3
BL2
BL1
AGND
AGND
REF
FBB
1
2
3
4
5
6
7
OUT
ENS
PGND
IN
C2-
C2+
ENB
OUT
C1+
C1-
OUTA
FBA
IN
OUTB
Absolute Maximum Ratings
1
Symbol
Description
IN, OUT, BL1, BL2, BL3, BL4, BL5, BL6 Voltage to AGND
C1+, C1-, C2+, C2- Voltage to AGND
REF, FBB, OUTA, FBA, OUTB, ENA, ENB, ENS Voltage to AGND
PGND Voltage to AGND
Operating Junction Temperature Range
Maximum Soldering Temperature (at leads, 10 sec)
Value
-0.3 to 6.0
-0.3 to V
OUT
+ 0.3
-0.3 to V
IN
+ 0.3
-0.3 to 0.3
-40 to 150
300
Units
V
V
V
V
°C
°C
T
J
T
LEAD
Thermal Information
2
Symbol
P
D
θ
JA
Description
Maximum Power Dissipation
3
Maximum Thermal Resistance
Value
2
50
Units
W
°C/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 is not implied. Only one Absolute Maximum Rating should be applied at any one time.
2. Mounted on a FR4 circuit board.
3. Derate 6.25 mW/°C above 25°C ambient temperature.
2856.2008.02.1.3
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