AAT2860 Datasheet, PDF (3/23 Pages) Advanced Analogic Technologies – Backlight/Flash LED Driver and Multiple LDO Lighting Management Unit

PRODUCT DATASHEET
AAT2860
ChargePump^TM Backlight/Flash LED Driver and Multiple LDO Lighting Management Unit
Pin Configuration
TQFN34-24
(Top View)
24 23 22 21 20
OUT ¹
C2+ ²
SDA ³
SCL ⁴
LED_SEL ⁵
FL_LVL ⁶
LDO_SEL ⁷
19 _BL7/FL2
18 _BL6/FL1
17 _BL5
16 _BL4
15 _BL3
14 _BL2
13 _BL1
8 9 10 11 12
Part Number Descriptions¹
Part Number
AAT2860-1
AAT2860-2
AAT2860-3
AAT2860-4
AAT2860-5
AAT2860-6
Backlight LED Outputs
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
Absolute Maximum Ratings²
Symbol
T_J
T_LEAD
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)
Thermal Information^{3, 4}
Symbol
P_D
Θ_JA
Description
Maximum Power Dissipation
Maximum Thermal Resistance
Flash LED Outputs
0
1
1
2
0
0
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
2.0
50
Units
W
°C/W
1. Backlight and Flash Configuration within a part number is configured though the I²C 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
www.analogictech.com
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