AAT3103 Datasheet, PDF (14/17 Pages) Advanced Analog Technology, Inc. – 3-Channel Charge-Pump LED Driver

ChargePump^TM
Evaluation Board Schematic
PRODUCT DATASHEET
AAT3103
3-Channel Charge-Pump LED Driver
DC- DC+
+
C
10μF
123
VCC
JP1
C1
1μF
C3
1μF
AAT3103-1
White LED
Driver
C2
1μF
D3 D2 D1
U1
AAT3103-1
1 _D1
2 _OUT
3 _C-
4 _C+
5 _IN
JP2 JP3 JP4
D2 ¹⁰
D3 ⁹
AGND ⁸
RSET ⁷
EN/SET ⁶
JP5
R1
14.3k
L1
4.7μH
R8 10k
C5
4.7μF
U4
AAT1217-3.3
1
5
SW
VOUT
6
VIN
4
SHDN
3
FB
2
GND
R2
20k
C6
4.7μF
R5 R4 R3
1k 1k 1k
S1
UP
S2
DOWN
S3
CYCLE
S²Cwire
Microcontroller
U2
PIC12F675
1
8
VDD
VSS
2 _GP5
GP0 ⁷
3 _GP4
GP1 ⁶
4
GP3
5
GP2
C4
0.1μF
VR1
POT10K
R6
330Ω
LED1
Green
R7
330Ω
LED2
Red
Figure 8: AAT3103 Evaluation Board Schematic.
14
www.analogictech.com
3103.2008.03.1.0