DC1317A-D - Schematic

4
+VIN
**
CIN1
CIN2
CIN3
2.2uF
100V
TDK
1812
D
6
5
2
1
L2
1.5mH
DO1607B-155ML-C
VU1
4
A1
D2
BAS516
VR2
R11
82K
D3
BAS516
6
VU1
1
2
3
VCCBOOST
GND
2
TG
INP
TS
C21
VFB
3
opt.
R13
22K
R14
33K
R15
169K
R42
0
C10
0.1uF
R22
13.3K
1
COMP
2
FB=1.23V
SOUT
16
VIN
15
3
ROSC
OUT
14
4
SYNC
PGND
13
5
SS/MAXDC DELAY
12
6
VR=2.5V
OC
11
ISENSE
10
BLANK
9
7
SD/VSEC
8
GND
4
470pF
C7
220pF
OUT
L4
10uH
T2
PE-68386
PULSE ENG.
SOUT
D10 100pF
C9
R20
100pF 75K
R23
1.5K
R24
47K
C8
100pF
VU1
CU1
4.7uF
1
6
2
5
VR2
R32
B
C11
3.3nF
3
4
16V
U6
PS2801-1
4
1
3
2
R30
1.2K
D17
BAS516
R53
200
SW0
SW0 +VIN
C33
0.1uF
SW1
2
6
7
4
1
SW2
R54
4.7 1206
C25 33nF
200V
1206
R45
10K
C28
opt.
A
SOUT
R48
opt.
VU1
U7 opt.
1
VCC BOOST
6
2
GND
TG
5
3
INP
TS
4
C30
opt.
R27
470
4
1
CS+ SYNC
8
2
CS- TIMER
7
3
CG
GND
6
4
VCC
FG
5
VCC OPTO
6
2
GND COMP
5
3
OC
4
FB
C17
15nF
C12
470pF
FG
R35 +VO1
237K
1%
R34
13.7K
1%
C18
opt.
B
C24
R38
6.04K
1%
**
opt.
FOR ASSEMBLY
+VIN
+VOUT
-A
34V - 75V
3.3V @ 30A
-B
18V - 72V
5V @ 25A
-C
18V - 72V
12V @ 8A
NOTES: UNLESS OTHERWISE SPECIFIED
-D
18V - 72V
24V @ 4A
1. ALL RESISTORS ARE 0603.
ALL CAPACITORS ARE 0603.
-E
36V - 72V
5V @ 12A
-F
9V - 36V
3.3V @ 20A (5V @ 15A)
-G
9V - 36V
12V @ 5A (18V @ 4A)
SEE QUICK START GUIDE.
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
3
R19
56K
R52
0
CG
1
C
SYNC
VERSIONS
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
-VOUT
VAUX
U5
LTC3900CS8
R51
0
U4
LT4430ES6
C16
OPT.
*
D14
BAS516
C29
opt.
C14
10uF
10V
C19
1uF
4
OPTIONAL CIRCUIT
PA2720NL
R21
10K
0.22uF
200V
1210
1
2
3
5
SW1 R16
221K 0805
D9
PDZ10B
R17
560
C34
Q13
Si2325
8
9
10
C5
0.22uF
50V
R31
0
TP5
R10
4.7K
R18
10K
C15
2200pF
250V
1812
R2
560K
OPTIONAL FOOTPRINT FOR T1
A1
L3
BAS521
D11
BAS516
VAUX
D
1
Q9
BCX55
VAUX
R26
220
C23
1uF
VFB
187K
D8
opt.
**
VAUX
5
6
7
8
309K
4
2
VU1
R33
opt.
PMEG3002AEB
+VO1
0
D6
B0540W7
opt.
CSYS
270uF
25V
25HVH270M
+
TP6
R12
C6
BAS521
SYNC
+VB
R28
C4
D7
330pF
RCS1
0.006
KOA, TLR2H
R6
OPT
D15
opt.
0805
R9
47
CO1
CO2 opt.
CO3 opt.
22uF
25V
TDK
1812
opt.
Q2
HAT2173
D16
opt.
+VOUT
TP4
27uH
HR-PQA2050-27-LTC
CG
TP3
+VO1
L1
Q3
RJK2055
opt.
R8
2.2
R7
0
C13
0.47uF 10V
R29
R50
Q1
HAT2173
R3
287
D1
BAS516
U1
LT1952EGN-1
5
C31
opt.
opt.
C32
5
6
SW1
R49
FG
SW0
C3
1uF
Q12
BC856T
1
opt.
10
11
2
R5
10
U2
LTC4440ES6-5
C
C1
+VIN
-VIN
C35
R4 R55
SW2
TP2
1
7
8
1
D5
PDZ10B
2
T1
G45R2-0408-004
CHAMPS TECH
3
+VIN
+VB
R1
2.2
TP1
3
Q10
PBSS8110D
3
5
-H
9V - 36V
CONTRACT NO.
APPROVALS
DRAWN
J. Wu
ENGINEER
G. Perica
DATE
10/8/07
TECHNOLOGY
TITLE
SIZE
2
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
A
LT1952EGN-1, LT4430ES6
CHECKED
Thursday, November 19, 2009
48V @ 1.5A
ISOLATED FORWARD DC/DC CONVERTER
10/8/07
APPROVED
*
*
*
CAGE CODE
SCALE:
FILENAME:
DWG NO
REV
DC1317A-D
SHEET
1
1
A
OF
1
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