DC2345A - Schematic

5
4
J1
C16
0.1uF
100V
0402
E1
2
1
L2
3.2uH
7443550320
FB1
OPT
EMI VIN
4V - 60V
3
C14
4.7uF
100V
1206
C15
4.7uF
100V
1206
VIN
J2
C2
4.7uF
100V
1206
C6
1uF
100V
0805
VIN
EN/UVLO
E3
9
VOUT
EN/UVLO
BST2
BST1
R8
221k
CTRL2
C
VIN
CTRL1
SW1
BG1
U1
LT8391EFE
CTRL1
R11
100k
5%
VREF
R15
100k
5%
LSP
12
17
E6
RP
10
1
LSN
VREF
BG2
FAULT
SW2
TG2
RP
FB
R16
200k
2
ISP
3
EXT/ON
JP1
GND
EXT SYNC
6
NO SPREAD/SYNC
E8
R4
2.2k
INTVCC
GND
RT
R3
100k
400kHz
PWM
2
4
3
C20
OPT
0
M1
BSC067N06LS3
R2
0.004
2010
C10
4.7uF
10V
R21
0
R23
OPT
C21
OPT
C17
10nF
C3
10uF
50V
1206
C4
10uF
50V
1206
0.05
2010
M5
SI7611DN
R5
1M
J4
E11
R6
34.8k
10
C
LED+
2A, 25V
J3
R9
5.1
5%
R27
10
LED-
GND
E10
28
26
25
19
14
15
B
R17
C19
OPT
OPT
R18
OPT
23
11
C18
OPT
PWM
EXT
1
2
3
4
5
INTVCC
6
JP3
PWM
E9
VREF
1
3
VR1
100K
3314J-1-104E
C9
10nF
R22
91k
5%
CUSTOMER NOTICE
A
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
TECHNOLOGY
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
TITLE: SCHEMATIC
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
NOTE: UNLESS OTHERWISE SPECIFIED
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
60V SYNCHRONOUS 4-SWITCH BUCK-BOOST
LED CONTROLLER WITH SPREAD SPECTRUM
ALL CAPACITORS ARE 0603.
ALL RESISTORS ARE 0603.
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
D1
PMEG6010CEJ
M3
BSC093N04LS
R26
5
INT
INTVCC
M4
BSC093N04LS
L1
4.8uH
Wurth
7443550480
1
6
R1
C11
0.1uF
C12
0.1uF
R20
OPT
R24
ON
8
4
5
PWMTG
VC
SS
C8
100nF
3
JP2
18
29
E7
SYNC/SPRD
SPREAD ON
OPT
21
SYNC/SPRD
2
INTVCC 1
R19
ISN
SYNC/SPRD
20
22
VREF
OUT
E12
27
M2
BSC100N06LS3
C7
0.47uF
INT
50V
0603
24
R25
0
R10
100k
5%
INTVCC
B
CTRL2
R14
OPT
13
R13
OPT
D2
OPT
CMDZ5231B
FAULT
TG1
R12
OPT
E5
GND
E13
VIN
16
E4
D
C5
1uF
7
R7
499k
C13
33uF
63V
63CE33BS
+
1
2
3
C1
4.7uF
100V
1206
E2
5
GND
2
D
4
3
2
N/A
DATE:
IC NO.
LT8391EFE
DC2345A
REV.
5
SHEET
Tuesday, May 03, 2016
1
1
OF
1
A
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