DC1317A-C - Schematic

5
4
+VIN
+VIN
CIN1
CIN2
CIN3
2.2uF
100V
TDK
1812
D
6
5
2
1
4
D3
BAS516
6
SW1
10
11
C3
1uF
16V
1
2
3
VCCBOOST
GND
TG
INP
TS
C21
6
5
R50
C31
CG
R8
2.2
220pF
R14
33K
R15
115K
R42
0
C10
0.1uF
R22
13.3K
R29
+VB
1
COMP
2
FB=1.23V
VR2
15
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
D10 100pF
C9
R20
100pF 115K
R23
2K
R24
68K
CU1
4.7uF
16V
1206
C11
OPT
5
6
2
5
3
4
D17
BAS516
SW0
R54
C25 10nF
200V
1206
1
3
2
VAUX
R31
10
C15
2200pF
250V
1812
3
CS- TIMER
7
3
CG
GND
6
4
VCC
FG
5
6
GND COMP
5
OC
4
FB
C17
15nF
C18
OPT
R19
47.5K
1%
C12
470pF
R52
0
FG
R35 +VO1
348K
1%
R34
12.1K
1%
C24
22pF
B
**
R38
18.2K
1%
FOR ASSEMBLY
VERSIONS
+VIN
-A
34V - 75V
3.3V @ 30A
+VOUT
5V @ 25A
18V - 72V
12V @ 8A
-D
18V - 72V
24V @ 4A
R45
10K
1. ALL RESISTORS ARE 0603.
ALL CAPACITORS ARE 0603.
-E
36V - 72V
9V - 36V
3.3V @ 20A (5V @ 15A)
D14
BAS516
*
-F
-G
9V - 36V
12V @ 5A (18V @ 4A)
NOTES: UNLESS OTHERWISE SPECIFIED
SEE QUICK START GUIDE.
-H
1
VCC BOOST
6
2
GND
TG
5
INP
TS
4
C30
opt.
C29
opt.
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.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
2
CG
VCC OPTO
C19
1uF
10V
0805
0.22uF
200V
1210
8
R51
0
U4
LT4430ES6
10V
1
C16
0.22uF
2
CS+ SYNC
9V - 36V
5V @ 12A
*
*
*
48V @ 1.5A
U7 opt.
3
SOUT
R27
470
1
18V - 72V
SW2
R48
opt.
C14
1uF
10V
0805
C
SYNC
-B
4
A
R18
10K
R21
10K
D11
BAS516
VAUX
U5
LTC3900CS8
-C
Q13
Si2325
C28
opt.
SW1 R16
33K 0805
D9
PDZ10B
R17
560
C34
4.7 1206
SW1
VU1
R10
1K
C5
C6
0.22uF
BAS521 50V
0805
SYNC
U6
PS2801-1
4
R2
560K
PA2720NL
D8
opt.
16V
R33
opt.
OPTIONAL CIRCUIT
1
Q9
BCX55
VAUX
1
2
3
8
9
10
VAUX
4
2
L3
680uH
1
R30
1.2K
6
7
-VOUT
opt.
D6 opt.
opt.
T2
PE-68386
PULSE ENG.
R26
220
C23
1uF
R53
10uH
TP6
VU1
VFB
SW0 +VIN
4
1
C8
100pF
VU1
C33
0.1uF
A1
L4
10uH
SOUT
OPTIONAL FOOTPRINT FOR T1
2
C7
220pF
OUT
C13
0.47uF 10V
R28
R32
187K
16
VIN
3
PMEG3002AEB
309K
SOUT
R6
OPT
TP5
+VO1
D7
BAS521
RCS1
0.006
KOA, TLR2H
16V
APXE
R12
0805
R9
0
R3
442
D1
BAS516
U1
LT1952EGN-1
C4
D
+ 220uF
D15
opt.
Q2
HAT2266
opt.
**
CSYS
CO1 33uF
CO2 opt.
CO3 opt.
16V
opt.
5
6
7
8
R13
22K
10uH
HR-PQA2050-10
D16
opt.
R7
0
4
TP4
Q3
HAT2173
Q1
HAT2173
VFB
2
opt.
opt.
C32
SW0
U2
LTC4440ES6-5
3
R49
FG
2
R5
10
+VO1
L1
+VOUT
5
B
TP3
3
VU1
Q12
BC856T
1
100V
+VIN
-VIN
C
C35
SW2
TP2
1
7
8
1
D5
PDZ10B
C1
opt. 1206 opt.
T1
G45R2-0405-005
CHAMPS TECH
A1
D2
BAS516
VR2
R11
47K
2
R4 R55
L2
1.5mH
DO1607B-155ML-C
VU1
3
**
+VB
R1
2.2
TP1
3
Q10
PBSS8110D
4
3
CONTRACT NO.
APPROVALS
DRAWN
J. Wu
DATE
10/8/07
TECHNOLOGY
TITLE
ISOLATED FORWARD DC/DC CONVERTER
10/8/07
CHECKED
SIZE
CAGE CODE
APPROVED
Wednesday, February 25, 2009
2
A
LT1952EGN-1, LT4430ES6
ENGINEER
G. Perica
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
SCALE:
FILENAME:
DWG NO
REV
DC1317A-C
SHEET
1
1
A
OF
1
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