AAT2856_08 Datasheet, PDF (3/18 Pages) Advanced Analogic Technologies – High Current Charge Pump with Dual LDO for Backlight Applications

PRODUCT DATASHEET
AAT2856
ChargePump^TM High Current Charge Pump with Dual LDO for Backlight Applications
Pin Configuration
TQFN44-28
(Top View)
BL3
BL2
BL1
AGND
AGND
REF
FBB
28 27 26 25 24 23 22
1
21
2
20
3
19
4
18
5
17
6
16
7
15
8 9 10 11 12 13 14
OUT
ENS
PGND
IN
C2-
C2+
ENB
Absolute Maximum Ratings¹
Symbol
T_J
T_LEAD
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)
Thermal Information²
Symbol
P_D
θ_JA
Description
Maximum Power Dissipation³
Maximum Thermal Resistance
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
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
www.analogictech.com
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