DC1317A-G - Schematic

4
+VIN
**
CIN1
CIN2
CIN3
6.8uF
50V
1812
D
6
5
2
1
VU1
4
L2
1.5mH
DO1607B-155ML-C
A1
D2
BAS516
VR2
R11
10K
D3
BAS516
6
-VIN
1
C3
1uF
16V
2
3
6
GND
5
INP
2
3
TS
C21
VFB
Q12
BC856T
1
TG
R13
22K
R14
33K
R15
178K
R42
0
C10
0.1uF
R22
13.3K
D1
BAS516
U1
LT1952EGN-1
1
COMP
2
FB=1.23V
SOUT
16
VIN
15
ROSC
OUT
14
4
SYNC
PGND
13
5
SS/MAXDC DELAY
12
6
VR=2.5V
OC
11
ISENSE
10
BLANK
9
SD/VSEC
8
GND
R8
2.2
R3
665
R6
opt.
C7
220pF
L4
10uH
SOUT
D10 100pF
R20
100K
R23
910
R24
100K
C8
100pF
VU1
CU1
4.7uF
6
2
5
3
4
C11
100pF
R26
220
C23
1uF
VFB
16V
U6
PS2801-1
4
1
3
2
R32
196K
B
VR2
R53
10uH
D17
BAS516
SW0
C33
0.1uF
SW1
2
VAUX
5
C25 33nF
200V
1206
R45
10K
OPTIONAL CIRCUIT
PA2720NL
C28
opt.
A
SOUT
R48
opt.
VU1
U7 opt.
1
VCC BOOST
6
2
GND
TG
5
3
INP
TS
4
C30
opt.
4
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
R35
348K
R34
12.1K
C18
opt.
C24
R38
18.2K
OPT.
FG
+VO1
B
**
FOR ASSEMBLY
+VIN
-A
34V - 75V
-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
60.4K
VERSIONS
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
1
R51
0
U4
LT4430ES6
C16
opt.
*
D14
BAS516
C29
opt.
R27
470
R31
0
C
SYNC
C14
1uF
C19
1uF
1
2
3
SW2
8
9
10
R18
10K
0.33uF
100V
1210
4
6
7
4
1
R54
2.2 1206
VAUX
U5
LTC3900CS8
R21
10K
D11
BAS516
C34
Q13
Si7309DN
SW0 +VIN
A1
SW1 R16
33K
D9
PDZ10B
R17
560
C15
2200pF
250V
1812
R2
560K
OPTIONAL FOOTPRINT FOR T1
R10
1K
5
6
7
8
115K
R30
1.2K
R33
opt.
PMEG3002AEB
D8
opt.
VAUX
+VB
R28
1
Q9
BCX55
opt.
C5
0.22uF
C6
50V
BAS521
SYNC
-VOUT
VAUX
VU1
C13
0.47uF 10V
R29
4
2
L3
680uH
1
D
TP5
+VO1
D6
T2
PE-68386
PULSE ENG.
**
CSYS
220uF
16V
APXE
TP6
R12
opt.
D7
BAS521
RCS1
0.005
KOA, TLR2H
+
D15
opt.
C4
opt.
R9
47
220pF
C9
opt.
opt.
CO1
CO2 opt.
CO3 opt.
33uF
16V
1812
Q3
HAT2173
Q2
HAT2266
+VOUT
TP4
16uH
HR-PQA2050-16-LTC
CG
TP3
+VO1
L1
opt.
D16
opt.
R7
0
OUT
3
7
R50
Q1
HAT2266
4
SW1
opt.
C32
5
VCC BOOST
opt.
C31
FG
SW0
U2
LTC4440ES6-5
100V
R49
10
11
2
R5
0
C35
opt. 1206 opt.
+VIN
VU1
C1
SW2
TP2
C
R4 R55
1
7
8
1
D5
PDZ10B
2
T1
G45R2-0306.006
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
7/28/09
TECHNOLOGY
TITLE
SIZE
CAGE CODE
SCALE:
2
48V @ 1.5A
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
A
LT1952EGN-1, LT4430ES6
CHECKED
Wednesday, July 29, 2009
*
*
*
ISOLATED FORWARD DC/DC CONVERTER
7/28/09
APPROVED
+VOUT
3.3V @ 30A
FILENAME:
DWG NO
REV
DC1317A-G
SHEET
1
1
A
OF
1
Similar pages