AAT2869 Advanced Analogic Technologies, Inc., AAT2869 Datasheet - Page 18

• Manufacturer Part Number: AAT2869
• Description: Fade-in/fade-out 4 Channel Backlight Driver With Dual Ldos
• Manufacturer: Advanced Analogic Technologies, Inc.

Schematic and Layout
18
SystemPower
Figure 5: AAT2869 Evaluation Board
DC+
DC-
SELECT
DETAIL
SEND
White LED
AAT2869
Driver
Top Side Layout.
TM
V _MCU
R10
1k
R11
1k
J1
Figure 4: AAT2869 Evaluation Board Schematic.
50k
R8
EN/SET
Fade-In/Fade-Out 4 Channel Backlight Driver with Dual LDOs
1k
R12
1
2
3
4
C
2.2μF
IN
U2
VDD
GP5
GP4
GP3
w w w . a n a l o g i c t e c h . c o m
V_LDO
C1
1μF
PIC12F675
VSS
GP0
GP1
GP2
C
1μF
F
18
14
1
7
6
8
4
9
5
8
7
6
5
U1
AAT2869
C1-
IN
C1+
INLDO
GND
EN/SET
GND
FCAP
AGND
R6
1k
LED1
Green
EP
OUTCP
LDOA
LDOB
C2+
C2-
D1
D2
D3
D4
Figure 6: AAT2869 Evaluation Board
16
15
17
10
11
12
13
3
2
C3
0.1uF
R9
1k
LED2
Red
1μF
C
Microcontroller
C
2.2μF
OUT
LDOB
Bottom Side Layout.
AS
C2
1μF
PRODUCT DATASHEET
R1
0
2
LDOB
Cwire
D1
R2
0
D2
AAT2869
2.2μF
C
LDOA
0
R3
D3
LDOA
0
R4
D4
2869.2010.01.1.0
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