PRODUCT DATASHEET
AAT3103
ChargePumpTM
3-Channel Charge-Pump LED Driver
Evaluation Board Schematic
DC-
DC+
AAT3103-1
White LED
Driver
+
C
10μF
VCC
C2
1μF
D3
D2
D1
1
2 3
JP2 JP3 JP4
U1
AAT3103-1
D1
1
2
3
4
5
10
JP1
C1
1μF
D2
D3
AGND
RSET
EN/SET
9
8
7
6
OUT
C-
C+
IN
R1
C3
1μF
14.3k
JP5
S2Cwire
Microcontroller
R2
20k
U4
L1
4.7μH
AAT1217-3.3
1
6
4
5
3
2
SW
VIN
SHDN
VOUT
FB
R7
C6
C4
U2
330Ω
0.1μF
GND
4.7μF
PIC12F675
VDD
R5
1k
R4
1k
R3
1k
1
2
3
4
8
7
6
5
R8 10k
VSS
GP0
GP1
GP2
VR1
C5
4.7μF
GP5
GP4
GP3
LED2
Red
S1
POT10K
UP
DOWN
CYCLE
S2
S3
R6
330Ω
LED1
Green
Figure 8: AAT3103 Evaluation Board Schematic.
w w w . a n a l o g i c t e c h . c o m
14
3103.2008.03.1.0
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
