Texas Instruments AN-2255, User Manual, Page: 19 / 26

LM3463 EVALUATION BOARD
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J2
J9 J5 J7
J4 J6 J8
J10
J3
CH0 CH1 CH2 CH3 CH4 CH5 VRAIL
GND
LM3463 EVALUATION BOARD
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J2
J9 J5 J7
J4 J6 J8
J10
J3
CH0 CH1 CH2 CH3 CH4 CH5 VRAIL
GND
LM3463 EVALUATION BOARD
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AR
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IN
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J0
J1
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J2
J9 J5 J7
J4 J6 J8
J10
J3
CH0 CH1 CH2 CH3 CH4 CH5 VRAIL
GND
TP33
TP35
VFB
TP33
TP35
VFB
J4 = OPEN J7 = OPEN
J5 = OPEN J8 = SHORT 2-3
J6 = OPEN J9 = OPEN
TP22
TP3
TP22
TP3
TP22
TP3
MASTER
J4 = OPEN J7 = OPEN
J5 = OPEN J8 = SHORT 2-3
J6 = OPEN J9 = OPEN
VLedFB = VCC
R2 = OPEN
R4 = OPEN
SLAVE 1
J4 = OPEN J7 = OPEN
J5 = OPEN J8 = SHORT 2-3
J6 = OPEN J9 = OPEN
VLedFB = VCC
R2 = OPEN
R4 = OPEN
SLAVE 2
LED array 1 LED array 2 LED array 3 VRAIL
GND
VFB
Pr
im
a
ry
Po
w
e
r
Su
p
p
ly
TP12
TP14
TP16
DIM4
DIM23
DIM01
Logic level PWM
dimming control
signals
TP18
DIM5
TP12
TP14
TP16
TP18
TP12
TP14
TP16
TP18
LM3463 EVALUATION BOARD
W
AR
N
IN
G
:
H
IG
H
D
C
VO
L
T
AG
E
J0
J1
J
1
1
J
1
2
J
1
3
J
1
4
J
1
5
J
1
6
J2
J9 J5 J7
J4 J6 J8
J10
J3
CH0 CH1 CH2 CH3 CH4 CH5 VRAIL
GND
LM3463 EVALUATION BOARD
W
AR
N
IN
G
:
H
IG
H
D
C
VO
L
T
AG
E
J0
J1
J
1
1
J
1
2
J
1
3
J
1
4
J
1
5
J
1
6
J2
J9 J5 J7
J4 J6 J8
J10
J3
CH0 CH1 CH2 CH3 CH4 CH5 VRAIL
GND
LM3463 EVALUATION BOARD
W
AR
N
IN
G
:
H
IG
H
D
C
VO
L
T
AG
E
J0
J1
J
1
1
J
1
2
J
1
3
J
1
4
J
1
5
J
1
6
J2
J9 J5 J7
J4 J6 J8
J10
J3
CH0 CH1 CH2 CH3 CH4 CH5 VRAIL
GND
TP12
TP14
TP33
TP35
VFB
TP12
TP14
TP33
TP35
VFB
J4 = OPEN J7 = OPEN
J5 = OPEN J8 = SHORT 1-2
J6 = OPEN J9 = OPEN
TP22
TP3
TP22
TP3
TP22
TP3
MASTER
J4 = OPEN J7 = SHORT 2-3
J5 = OPEN J8 = SHORT 1-2
J6 = SHORT 2-3 J9 = OPEN
VLedFB = VCC
R2 = OPEN
R4 = OPEN
SLAVE 1
J4 = OPEN J7 = SHORT 2-3
J5 = OPEN J8 = SHORT 1-2
J6 = SHORT 2-3 J9 = OPEN
VLedFB = VCC
R2 = OPEN
R4 = OPEN
SLAVE 2
LED array 1 LED array 2 LED array 3 VRAIL
GND
VFB
Pr
im
a
ry
Po
w
e
r
Su
p
p
ly
TP12
TP14
TP16
VDIM4
VDIM23
VDIM01
DC voltages for
dimming control
TP18
VDIM5
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PCB Design
Figure 13. A 12 channel lighting system using DC interface mode for dimming control
Figure 14. A 12 channel lighting system using Direct PWM mode for dimming control
19 SNVA642 – May 2012 AN-2255 LM3463 Evaluation Board
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