PRODUCT DATASHEET
AAT2860
ChargePump
TM
Backlight/Flash LED Driver and Multiple LDO Lighting Management Unit
Pin Configuration
TQFN34-24
(Top View)
PGND
C1+
24
C2-
C1-
IN
23
22
21
20
19
18
17
16
15
14
13
OUT
C2+
SDA
SCL
LED_SEL
FL_LVL
LDO_SEL
1
2
3
4
5
6
7
8
9
10
11
12
BL7/FL2
BL6/FL1
BL5
BL4
BL3
BL2
BL1
AGND
IN
LDOB
LDOC
LDOA
Part Number Descriptions
1
Backlight LED Outputs
Part Number
AAT2860-1
AAT2860-2
AAT2860-3
AAT2860-4
AAT2860-5
AAT2860-6
Main
7/4
6/4
6/5
5/4
7/6
7/5
Sub
0/3
0/2
0/1
0/1
0/1
0/2
Flash LED Outputs
0
1
1
2
0
0
Absolute Maximum Ratings
2
Symbol
Description
IN, OUT, BL1, BL2, BL3, BL4, BL5, BL6/FL1, BL7/FL2 Voltage to AGND
C1+, C2+, SDA, SCL Voltage to AGND
LDOA, LDOB, LDOC, LED_SEL, FL_LVL, LDO_LVL, C1-, C2- 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
3, 4
Symbol
P
D
Θ
JA
Description
Maximum Power Dissipation
Maximum Thermal Resistance
Value
2.0
50
Units
W
°C/W
1. Backlight and Flash Configuration within a part number is configured though the I
2
C serial interface. For example, clearing the MEQS flag (set to “0”) in the AAT2860-1’s REG2
register will configure BL1-BL4 LED outputs as MAIN and BL5-BL7 outputs as SUB.
2. 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.
3. Derate 20 mW/°C above 25°C ambient temperature.
4. Mounted on a FR4 circuit board.
2860.2008.05.1.0
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