DC1317A-B - Schematic

5
4
+VIN
+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
D3
BAS516
6
10
11
C3
1uF
1
2
3
R50
VCCBOOST
GND
TG
INP
TS
C21
6
5
R7
0
R8
R9
0
4
opt.
470pF
R14
33K
R15
174K
R42
0
C10
0.1uF
R22
13.3K
COMP
2
FB=1.23V
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
R28
D10 100pF
C9
R20
100pF 100K
R23
1K
R24
47K
CU1
4.7uF
VR2
C11
OPT
3
4
SW0
R54
C25 33nF
200V
1206
Q13
Si2325
SW2
4
1
3
2
A
6
2
GND
TG
5
INP
TS
4
3
SOUT
R48
opt.
C30
opt.
4
SW1 R16
33K 0805
R18
10K
R27
470
C16
0.22uF
1
CS+ SYNC
8
2
CS- TIMER
7
3
CG
GND
6
4
VCC
FG
5
C12
470pF
R52
0
CG
1
VCC OPTO
6
2
GND COMP
5
3
OC
4
FB
C17
15nF
C18
OPT
FG
R35 +VO1
137K
1%
R34
3.4K
1%
C24
22pF
B
**
R38
18.2K
1%
FOR ASSEMBLY
VERSIONS
+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
-F
9V - 36V
3.3V @ 20A (5V @ 15A)
-G
9V - 36V
12V @ 5A (18V @ 4A)
*
SEE QUICK START GUIDE.
-H
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
R51
0
U4
LT4430ES6
R31
10
C
SYNC
C14
1uF
C19
1uF
D14
BAS516
C29
opt.
VAUX
VAUX
U5
LTC3900CS8
R21
10K
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
D9
PDZ10B
0.22uF
200V
1210
1
2
3
VU1
PA2720NL
VCC BOOST
C5
0.22uF
C6
BAS516
D11
BAS516
C15
2200pF
250V
1812
R45
10K
1
R10
1K
R17
560
C34
10 1206
SW1
C28
opt.
L3
220uH
16V
D17
BAS516
R53
200
U7 opt.
1
Q9
BCX55
D8
opt.
SYNC
U6
PS2801-1
4
R2
560K
OPTIONAL CIRCUIT
VAUX
4
2
VAUX
R30
1.2K
6
7
5
5
R26
220
C23
1uF
VFB
SW0 +VIN
8
9
10
6
2
TP5
+VO1
0
VU1
C33
0.1uF
4
1
1
D
6.3V
T530X477M006ATE004
-VOUT
D6
opt.
T2
PE-68386
PULSE ENG.
C8
100pF
VU1
OPTIONAL FOOTPRINT FOR T1
A1
L4
10uH
SOUT
R32
187K
2
C7
220pF
OUT
R33
opt.
PMEG3002AEB
309K
SOUT
R6
OPT
C13
0.47uF 10V
R29
+VB
1
R3
301
D1
BAS516
U1
LT1952EGN-1
**
TP6
5
6
7
8
R13
22K
CSYS
+ 470uF
R12
D7
B0540W
RCS1
0.006
KOA, TLR2H
CO1
CO2
CO3
100uF
6.3V
TDK
1812
D15
opt.
Q2
HAT2165
D16
opt.
C4
BAS516
1uF
TP4
1.90uH
PA1393.202NL
Q3
HAT2169
opt.
Q1
HAT2173
VFB
2
CG
opt.
C32
SW0
U2
LTC4440ES6-5
3
opt.
C31
FG
2
R5
10
TP3
+VO1
L1
+VOUT
R49
5
B
SW1
3
VU1
Q12
BC856T
1
100V
+VIN
-VIN
C
C35
3.3 1206 1nF
SW2
TP2
1
7
8
1
D5
PDZ10B
C1
R4 R55
VR2
R11
75K
2
T1
G45R2-0502-005
CHAMPS TECH
3
**
+VB
R1
2.2
TP1
3
Q10
PBSS8110D
9V - 36V
CONTRACT NO.
APPROVALS
DRAWN
J. Wu
DATE
10/8/07
TECHNOLOGY
TITLE
CHECKED
SIZE
CAGE CODE
APPROVED
2
48V @ 1.5A
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
A
ISOLATED FORWARD DC/DC CONVERTER
10/8/07
Wednesday, February 25, 2009
*
*
*
LT1952EGN-1, LT4430ES6
ENGINEER
G. Perica
5V @ 12A
SCALE:
FILENAME:
DWG NO
REV
DC1317A-B
SHEET
1
1
A
OF
1
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