DC1317A-H - Schematic

5
4
+VIN
+VIN
CIN1
CIN2
CIN3
6.8uF
50V
X7R
1812
D
6
5
2
1
VU1
4
R11
10K
L2
1.5mH
DO1607B-155ML-C
A1
D2
BAS516
1
D5
PDZ10B
2
T1
G45R2-0324-006
CHAMPS TECH
7
8
D3
BAS516
6
opt.
R50
SW0
220uH
HR-PQA2050-220-LTC
CG
opt.
Q3
PDU540
Q2
PDS3200
opt.
5
1
C3
1uF
2
3
VCC BOOST
GND
TG
INP
TS
C21
6
R9
47
4
R13
22K
R14
33K
U1
LT1952EGN-1
1
2
R15
249K
3
R42
0
4
5
C10
0.1uF
6
R22
13.3K
7
8
COMP
SOUT
FB=1.23V
ROSC
OUT
SYNC
PGND
SD/VSEC ISENSE
BLANK
L4
opt.
C8
100pF
VU1
D10
BAT760
14
C9
R20
100pF 470K
CU1
4.7uF
12
10
R23
2.4K
9
R24
22K
C11
3.3nF
6
2
5
3
4
R32
B
C23
1uF
SYNC
U6
PS2801-1
4
1
3
2
D17
BAS516
R53
200
SW0
C33
0.1uF
SW1
2
6
7
4
1
5
R54
2.2 1206
C25 33nF
200V
1206
R45
10K
OPTIONAL CIRCUIT
PA2720NL
C28
opt.
VU1
U7 opt.
1
2
A
3
SOUT
R48
opt.
VCC BOOST
GND
TG
INP
TS
C30
opt.
6
5
4
4
SW1 R16
opt.
D9
PDZ7.5B
VAUX
R27
470
1
CS+ SYNC
2
CS- TIMER
3
CG
1
C16
0.22uF
2
3
VCC OPTO
GNDCOMP
OC
VCC
GND
FG
R19
opt.
7
C12
opt.
6
5
FB
R52
opt.
CG
6
5
4
C17
15nF
C18
opt.
FG
R35 +VO1
487K
1%
R34
19.6K
1%
B
C24
R38
6.04K
1%
0.33uF
100V
1210
**
opt.
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
5V @ 12A
-F
9V - 36V
3.3V @ 20A (5V @ 15A)
-G
9V - 36V
12V @ 5A (18V @ 4A)
*
SEE QUICK START GUIDE.
-H
CUSTOMER NOTICE
9V - 36V
CONTRACT NO.
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
APPROVALS
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
DRAWN
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
J. Wu
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
ENGINEER
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
G. Perica
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT CHECKED
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. APPROVED
3
8
R51
opt.
U4
LT4430ES6
R31
0 ohm
C
SYNC
C14
opt.
C19
1uF
D14
BAS516
C29
opt.
VAUX
U5
opt.
R18
opt.
R21
opt.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
C5
2.2uF
50V
D11
BAS516
C34
Q13
Si9407BDY
4
SW2
8
9
10
R10
43K
R17
opt.
C15
2200pF
250V
1812
R2
560K
OPTIONAL FOOTPRINT FOR T1
A1
BAS516
16V
R30
1.2K
SW0 +VIN
D8
opt.
1
Q9
BCX55
4
VFB
143K
TP5
VAUX
4
2
5
6
7
8
VR2
opt.
VAUX
1
2
3
143K
0
D6
C6
opt.
1
R26
220
R33
158K
PMEG3002AEB
D
63V
63HVH33M
-VOUT
L3
opt.
+VB
R28
**
CSYS
+ 33uF
TP6
VU1
C13
0.47uF 10V
R29
C4
T2
opt.
SOUT
11
OC
GND
16
13
SS/MAXDC DELAY
C7
opt.
OUT
15
VIN
VR=2.5V
R6
opt.
CO1
CO2 opt.
CO3 opt.
6.8uF
50V
X7R
1812
R12
D7
opt.
RCS1
0.005
KOA, TLR2H
opt.
R3
0
D1
opt.
TP4
+VO1
R8
opt.
R7
0
5
D15
opt.
D16
opt.
Q1
RJK0653DPB
VFB
2
opt.
C31
FG
C32
TP3
+VO1
L1
3
R5
0
U2
LTC4440ES6-5
3
SW1
+VOUT
R49
10
11
2
VU1
Q12
BC856T
1
100V
+VIN
-VIN
1
C35
opt. 1206 opt.
SW2
TP2
C
C1
R4 R55
VR2
3
**
+VB
R1
2.2
TP1
3
Q10
PBSS8110D
DATE
10/8/07
TECHNOLOGY
TITLE
SIZE
2
48V @ 1.5A
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
A
LT1952EGN-1, LT4430ES6
ISOLATED FORWARD DC/DC CONVERTER
10/8/07
Friday, May 18, 2012
*
*
*
CAGE CODE
SCALE:
FILENAME:
DWG NO
REV
DC1317A-H
SHEET
1
1
A
OF
1
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