AAT2846_08 Datasheet, PDF (20/22 Pages) Advanced Analogic Technologies – High Current Charge Pump with Dual LDO for Backlight and Flash Applications

PRODUCT DATASHEET
AAT2846
ChargePump^TM High Current Charge Pump with Dual LDO for Backlight and Flash Applications
VIN
C11
0.1µF
VIN
DATA
LIGHT
MOVIE
FLASH
R1 R2 R3 R4
1K 1K 1K 1K
SW1
SW2
SW3
SW4
U3
AAT4290
1 _IN
OUT3 ⁸
2 _{OUT2 OUT4} 7
3 _{OUT1 OUT5} 6
4 _{EN/SET GND} 5
J2
ENBL
J3
ENFL
J4
ENLA
J5
ENLB
ENBL
ENFL
ENLA
ENLB
R6 R7 R8 R9
100K 100K 100K 100K
VIN
U2
1 _VDD
2 _GP5
3 _GP4
4 _GP3
VSS ⁸
GP0 ⁷
GP1 ⁶
GP2 ⁵
PIC12F675
C10
0.1µF
R5
330
LED7
RED
CTRL_CT
DC-
Figure 9: MCU and I/O Expander Section Schematic.
Evaluation Board Component Listing
Component
U1
U2
U3
D1-D6
D7, D8
C1, C2
C3-C7
C4
C8-C11
C12
R1-R4
R5
R6-R9
R10
R11
R12, R14
R13
J1-J5
LED7
SW1-SW4
Part#
AAT2846INJ-EE-T1
PIC12F675
AAT4290IJS-1-T1
LW M673
LXCL-PWF1
GRM18x
GRM18x
GRM18x
GRM18x
TAJBx
Chip Resistor
Chip Resistor
Chip Resistor
Chip Resistor
Chip Resistor
Chip Resistor
Chip Resistor
PRPN401PAEN
CMD15-21SRC/TR8
PTS645TL50
Description
High Eff. 1X/1.5X/2X CP for White LED, Dual LDO
8-bit CMOS, FLASH MCU; 8-pin PDIP
I/O Expander
Mini TOPLED White LED; SMT
Luxeon Flash LED
1.0µF, 10V, X5R, 0603, Ceramic
2.2µF, 10V, X5R, 0603, Ceramic
4.7µF, 10V, X5R, 0603, Ceramic
0.1µF, 16V, X7R, 0603, Ceramic
100µF, 10V, 10µA, Tantalum
1K, 5%, 1/4W; 1206
330, 5%, 1/4W; 1206
100K, 5%, 1/10W; 0603
280K, 1%, 1/10W; 0603
160K, 1%, 1/10W; 0603
120K, 1%, 1/10W; 0603
60.4K, 1%, 1/10W; 0603
Conn. Header, 2mm Zip
Red LED; 1206
Switch Tact, SPST, 5mm
Manufacturer
AnalogicTech
Microchip
AnalogicTech
OSRAM
Lumileds
Murata
Murata
Murata
Murata
AVX
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Sullins Electronics
Chicago Miniature Lamp
ITT Industries
20
www.analogictech.com
2846.2008.03.1.1