11
dc607afa
DEMO MANUAL DC607A
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
Figure 9. Schematic with Optional Components
schematic Diagram
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
36-72Vin
-Vin
+Vin
Note: UNLESS NOTED: All caps 25V; All resistors 0603 (1/16W) or 0805 (1/8W); Q3, Q4, Q8, Q11-15,Q23,Q24,Q27-Q30, Q32,Q33 Infineon BSC072N08NS5; Q7, Q9,Q25,Q26 Diodes Inc FMMT619; Q10, Q16-18 Diodes Inc FMMT718; D12, D14, D23, D24 BAS21; L2 Pulse PA0651; L1 PA1294.910; L5 Sumida CDEP105-1R3MC-50; L4 Coilcraft DO1608C-105; T5 Pulse PA0297; T1,T4 Pulse PA0526; D21,D22,D25 MURS120;
12V/35A
+Vout
-Vout
12V
VIN
12V
VLOW
+VOUT
ISNS
SBUS
VIN
B
ADLY
C
D
A
5VREF
ADLY
SBUS
P_LEG
A_LEG
VIN
PDLY
5VREF
5VREF
12V
P_LEG
A
12V
MB
B
MD
D
C
B
-VOUT
VHIGH
VLOW
+VOUT
ISNS
P_LEG
C
12V
5VREF
CT
-VOUT
+VOUT
-VOUT
VHIGH
-VOUT
VHIGH
+VOUT
+VOUT
ME
MF
ME
VLOW
MF
12V
PDLY
A_LEG
CT
-VOUT
+VOUT
5VREF
SIZE
SCALE:
CAGE CODE
DWG NO
REV
SHEET
OF
FILENAME:
TITLE
CONTRACT NO.
APPROVALS
DATE
DRAWN
CHECKED
APPROVED
ENGINEER
DESIGNER
TECHNOLOGY
1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507
A
DC607A
Tuesday, April 11, 2017
1
1
LTC3722EGN-1, 36-72Vin to 12V/35A Isolated Supply
June Wu
9/13/02
Kurk Mathews
9/13/02
SIZE
SCALE:
CAGE CODE
DWG NO
REV
SHEET
OF
FILENAME:
TITLE
CONTRACT NO.
APPROVALS
DATE
DRAWN
CHECKED
APPROVED
ENGINEER
DESIGNER
TECHNOLOGY
1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507
A
DC607A
Tuesday, April 11, 2017
1
1
LTC3722EGN-1, 36-72Vin to 12V/35A Isolated Supply
June Wu
9/13/02
Kurk Mathews
9/13/02
SIZE
SCALE:
CAGE CODE
DWG NO
REV
SHEET
OF
FILENAME:
TITLE
CONTRACT NO.
APPROVALS
DATE
DRAWN
CHECKED
APPROVED
ENGINEER
DESIGNER
TECHNOLOGY
1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507
A
DC607A
Tuesday, April 11, 2017
1
1
LTC3722EGN-1, 36-72Vin to 12V/35A Isolated Supply
June Wu
9/13/02
Kurk Mathews
9/13/02
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
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.
CUSTOMER NOTICE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
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.
CUSTOMER NOTICE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
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.
CUSTOMER NOTICE
R98
0
R86
9.09K
R54 80.6K
C26 0.47uF
T1 5:5(105uH):1:1
1
4
11
2
6
7
10
8
R27 OPT.
R37
470
1/4W
R33 4.99K
R39 150
C21
0.047uF
D14
ISO1
MOC207
1
2
6
5
3
4
7
8
U1
LTC3901EGN
PVcc
1
ME
2
ME2
3
PGND
4
CSE-
5
CSE+
6
TIM
ER
7
GND
8
SYNC
9
GND
2
10
CSF+
11
CSF-
12
PGND2
13
MF
14
MF2
15
Vcc
16
R31 OPT.
R15
1M
R3
1K
R80
0
Q12
4
5
2
3
6
7
8
1
Q27
4
5
2
3
6
7
8
1
R57
0
Q32
4
5
2
3
6
7
8
1
R30
20K
C29
68nF
D20
5.1V
MMBZ5231B
R48 0.020
2W
P2
C45
0.47uF
100V
R42 9.53K
Q14
4
5
2
3
6
7
8
1
R84
100
C31 1.0uF
R26 OPT.
Q30
4
5
2
3
6
7
8
1
D23 BAS21
Q37 opt.
R49 0.020
2W
R6
240
1/4W
R38 330
C2 0.82uF
100V
R41 10K
Q15
4
5
2
3
6
7
8
1
R92 39.2K
P4
R78
0
P3
Q34
MMBT3904
1
3
2
+
C13 180uF
16V
R83
0
R11 opt.
U3
LT1431CS8
COLL
1
COMP
2
V+
3
GND
-S
5
GND
-F
6
REF
8
RTOP
4
RMID
7
D21
Q18
R74 100
1W
R88 4.87K
1/4W
C59
0.1uF
16V
C49 220pF
U2 LTC3722EGN-1
SYNC
1
VREF
14
CT
24
OUTC
19
DPRG
2
FB
6
ADLY
11
GND
23
RLEB
5
COMP
4
OUTD
17
OUTB
20
OUTA
21
OUTE
16
OUTF
15
CS
3
PDLY
9
VIN
18
SBUS
10
SS
7
NC
8
UVLO
12
PGND
22
SPRG
13
Q23
4
5
2
3
6
7
8
1
R25 OPT.
D28
BAT54
R63 0
D24 BAS21
R61
opt
C30 2.2nF
250V
R34 opt.
Q7
R12
opt.
R56
20.0K
R53
22
R94 100
R91 1K
Q24
4
5
2
3
6
7
8
1
Q28
4
5
2
3
6
7
8
1
C46 0.82uF
100V
Q35
MMBT3904
C50 330pF
D16 MMBZ5240B
10V
Q13
4
5
2
3
6
7
8
1
C5 0.82uF
100V
C1 0.82uF
100V
R24 OPT.
Q3
4
5
2
3
6
7
8
1
R5
3.9K
1/4W
R18 182k
R4
240
1/4W
R93 100
C32
220pF
C22 opt.
Q29
4
5
2
3
6
7
8
1
R90 3.16K
R51 33
U6
LTC4440-EMS8E
VCC
3
GND
2
IN
1
TS
8
TG
7
BOOST
6
GND
4
R13 0
R71
8.25K
C34 0.22uF
C56 opt.
C28
180pF
R95
200K
R77
0
R28 OPT.
Q17
R82
0
Q10
P1
C43 22pF
C35 0.22uF
Q8
4
5
2
3
6
7
8
1
C57
opt.
R9
opt.
R43 750
Q9
R76
0
R22 30.1k
D22
D25
MURS120
C53 opt.
R7
opt.
1/4W
L5 1.3uH
R1
240
1/4W
C20
OPT.
Q11
4
5
2
3
6
7
8
1
Q26
C4 0.82uF
100V
R64 0
C24 1.0uF
R10
240
1/4W
D12
R65
18.2K
R87 3.16K
U5
LTC4440-EMS8E
VCC
3
GND
2
IN
1
TS
8
TG
7
BOOST
6
GND
4
C19
OPT.
D26
MMBZ5226B
3.3V
C42
22pF
T4 5:5(105uH):1:1
1
4
11
2
6
7
10
8
R32 4.99K
R40
2.7K
L4
1.0mH
+
C14 68uF
20V
C47 1uF
C44
0.47uF
100V
C3 0.82uF
100V
L1
0.85uH
R59
0
R46 2.49K
+
C36
180uF
16V
R50 33
R62
opt
R81
0
R2
3.9K
1/4W
L2 150nH
Q16
R89 9.09K
C16
0.1uF
C48 1uF
C41 220pF
C27 330pF
R44 5.1K
R72
100
1W
Q25
R75 100
1W
R66
18.2K
R45 0
Q4
4
5
2
3
6
7
8
1
C23 0.022uF
R55 80.6K
C7 470pF
200V
R79
0
R8
240
1/4W
R73
100
1W
R47 33K
Q33
4
5
2
3
6
7
8
1
C58
0.1uF
16V
C40 2.2nF
T5
8
1
5
4
R14
OPT.
R23 OPT.
R60
0
R58 10K
R85 4.87K
1/4W
