AAT2856_08 Datasheet, PDF (16/18 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
VIN
C11
0.1μF
U3
AAT4296
1 _IN
OUT3 ⁸
2 _{OUT2 OUT4} 7
3 _{OUT1 OUT5} 6
4 _{EN/SET GND} 5
J3
ENA
J4
ENB
ENA
ENB
VIN
R8 R9 R10
1K 1K 1K
SW1
SW2
SW3
VIN
U2
1 _VDD
2 _GP5
3 _GP4
4 _GP3
VSS ⁸
GP0 ⁷
GP1 ⁶
GP2 ⁵
PIC12F675
R6
100K
(Opt)
R5
100K
(Opt)
R7
C10 330
1μF
LED7
RED
ENS
DC-
Figure 7: MCU and I/O Expander Section Schematic.
Evaluation Board Component Listing
Component
U1
U2
U3
D1-D6
C1, C2, C10
C3, C5, C6, C7
C4
C8, C11
C12
R8-R10
R7
R5, R6
R4
R2
R1, R3
J1-J4
LED7
SW1-SW3
Part#
AAT2856INJ-EE-T1
PIC12F675
AAT4296IJS-1-T1
LW M673
GRM18x
GRM18x
GRM18x
GRM18x
TAJBx
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
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
29.4K, 1%, 1/10W; 0603
78.7K, 1%, 1/10W; 0603
59K, 1%, 1/10W; 0603
Conn. Header, 2mm Zip
Red LED; 1206
Switch Tact, SPST, 5mm
Manufacturer
AnalogicTech
Microchip
AnalogicTech
OSRAM
Murata
Murata
Murata
Murata
AVX
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Sullins Electronics
Chicago Miniature Lamp
ITT Industries
16
www.analogictech.com
2856.2008.02.1.3