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DC949A-B
P1-P3
P4-P6
P7-P8
Q
U
IC
K
S
T
A
RT
G
U
I
D
E
FO
R
D
E
M
O
N
S
T
R
A
T
I
O
N
C
I
R
C
UI
T
9
4
9
A
-
A
/
94
9
A
-
B
4
.
5A
BO
OS
T
LE
D
DR
IV
ER
WI
TH
P
W
M
DI
MM
I
N
G
7
LE
D
-
L1
1
0u
H
R
9
2
4k
C
2
3.
3u
F
50
V
R
1
10
0k
R
11
0
.06
8
50
0k
H
z
Q
1
2
N
70
02
P
V
I
N
C
4
0
.1u
F
C
O
U
T
_bu
c
k
1
0u
F
R
6
6
9.8
k
1%
C
6
4
.7u
F
10
V
D
1
P
D
S
56
0
3
.3V
R
21
5
10
C
3
1u
F
1
.5A
R
10
1
00
k
R
7
1
0k
LE
D
+
3
2V
S
HDN
Q
2
S
i
23
19
D
S
T
hi
s
i
s
th
e O
U
T
te
rm
in
al
on
D
C
94
9A
.
R
20
3
65
V
I
N
LT
34
78
E
F
E
S
H
D
N
V
I
N
V
R
E
F
C
T
R
L1
P
W
M
C
T
R
L2
V
S
L
S
W
S
S
O
U
T
LE
D
R
T
V
C
G
N
D
O
V
P
S
E
T
P
W
M
F
i
g
u
r
e
5
.
Custom
er frie
ndly sc
hem
atic fo
r buck
mode
LED d
river
DC949
A-B.
This c
ircuit r
equir
es ch
anges
to th
e stan
dard
demo ci
rcuit
such as
additi
on of n
ew c
ompo
nents an
d a tr
ace c
ut on t
he top
-side
of the
boar
d betw
een t
he drai
n of Q
1 and
the LE
D- te
rmin
al. T
he
input P
VIN mus
t be
con
nected t
o the O
UT te
rmi
nal. Th
e co
nnec
tion bet
ween pi
n L a
nd t
he indu
ctor m
ust b
e cut o
n the t
opside
of t
he
board.
Pin L c
an be
conn
ected
to VIN
termin
al via
R22
with a
zero
ohm res
istor
. T
ermi
nal Vs
can b
e left
floatin
g. The
COU
T_buc
k ca-
pacitor m
ust
be ad
ded to t
he b
oard.
Q
U
IC
K
S
T
A
RT
G
U
I
D
E
FO
R
D
E
M
O
N
S
T
R
A
T
I
O
N
C
I
R
C
UI
T
9
4
9
A
-
A
/
94
9
A
-
B
4
.
5A
BO
OS
T
LE
D
DR
IV
ER
WI
TH
P
W
M
DI
MM
I
N
G
8
P1-P3
P4-P6
P7-P8
DC949A-B
Mfr. #:
Buy DC949A-B
Manufacturer:
Analog Devices Inc.
Description:
LED Lighting Development Tools LT3478EFE Demo Board - 4.5A 42V, 2.25MHz
Lifecycle:
New from this manufacturer.
Delivery:
DHL
FedEx
Ups
TNT
EMS
Payment:
T/T
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