AAT2842 Datasheet, PDF (18/21 Pages) Advanced Analogic Technologies – High-Current Charge Pump with S2Cwire™ Control and Dual LDO for Backlight and Flash

AAT2842
High-Current Charge Pump with S²Cwire™
Control and Dual LDO for Backlight and Flash
VIN
C11
0.1µF
U3
1
2
3
4
IN
OUT3
NC OUT2
NC OUT1
EN/SET GND
8
7
6
5
AAT4291
VIN
DATA
LIGHT
MOVIE
FLASH
R1 R2 R3 R4
1K 1K 1K 1K
SW1
SW2
SW3
SW4
VIN
U2
1
2
3
4
VDD
GP5
GP4
GP3
VSS
GP0
GP1
GP2
8
7
6
5
PIC12F675
J2 ENBL
J3
ENFL
J4
ENL
ENBL
ENFL
ENL
R6 R7 R8
100K 100K 100K
C10 R5
0.1µF 330
LED7
RED
CTRL_CT
DC-
Figure 5: MCU and I/O Expander Section Schematic.
18
2842.2006.10.1.0