5
dc1693afa
DEMO MANUAL DC1693A
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.
scheMAtic DiAgrAM
A
A
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
4.5V - 30V
FOR INPUT VOLTAGE DAMPING PURPOSE ONLY.
0805
1206
OPT 5V
*
1%
1%
1%
1. ALL RESISTORS ARE 0603.
ALL CAPACITORS ARE 0603.
NOTE: UNLESS OTHERWISE SPECIFIED
*
** SEE QUICK START GUIDE FOR OUTPUT CURRENT RANGE.
**
R
1-1 REBUILD CHANGE R5 EDWIN L. 10-15-13
VIN VIN
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
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
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1-1
Tuesday, October 15, 2013
ISOLATED MODULE DC/DC CONVERTER
JW
EDWIN L.
N/A
LTM8047EY
DEMO CIRCUIT 1693A
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
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
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1-1
Tuesday, October 15, 2013
ISOLATED MODULE DC/DC CONVERTER
JW
EDWIN L.
N/A
LTM8047EY
DEMO CIRCUIT 1693A
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
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
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1-1
Tuesday, October 15, 2013
ISOLATED MODULE DC/DC CONVERTER
JW
EDWIN L.
N/A
LTM8047EY
DEMO CIRCUIT 1693A
REVISION HISTORY
DESCRIPTION DATEAPPROVEDECO REV
EDWIN L.PRODUCTION1 08-08-11
__
REVISION HISTORY
DESCRIPTION DATEAPPROVEDECO REV
EDWIN L.PRODUCTION1 08-08-11
__
REVISION HISTORY
DESCRIPTION DATEAPPROVEDECO REV
EDWIN L.PRODUCTION1 08-08-11
__
E2
GND E2
GND
E3
VOUT
E3
VOUT
R1
200
1210
R1
200
1210
R6
OPT
R6
OPT
C8
OPT
1210
C8
OPT
1210
C7
0.033uF
OPT
1000V
1812
C7
0.033uF
OPT
1000V
1812
R2
200k
R2
200k
C1
10uF
1210
50V
C1
10uF
1210
50V
R5
6.98k
R5
6.98k
C4
4.7uF
50V
C4
4.7uF
50V
E1
VIN
E1
VIN
C2
22uF
16V
C2
22uF
16V
L1
10uH
CDRH4D22/HP
L1
10uH
CDRH4D22/HP
E8
BIAS E8
BIAS
E5
RUN E5
RUN
E4 VOUT-
E4 VOUT-
+
10uF
35V
CIN1
+
10uF
35V
CIN1
U1
LTM8047EY
U1
LTM8047EY
RUN
F3
GND
E4
BIAS
H5
VOUT A6
SS
H6
VIN
G1
GND
F7
VOUT- A2
VOUT- A3
VIN
H1
GND
E5
GND
E6
GND
E7
GND
F4
GND
F5
GND
F6
GND
G4
GND
G5
GND
E3
VOUT- A4
VOUT- A5
VOUT- B3
VOUT- B4
VOUT- B5
VOUT- C3
VOUT- C4
VOUT A7
VOUT B6
VOUT B7
VOUT C6
VOUT C7
VIN
G2
VIN
H2
VOUT- B2
VOUT- C2
VOUT- C1
VOUT- B1
VOUT- A1
VOUT- C5
ADJ
G7
GND
G6
GND
H4
GND
E2 GND
E1
GND
H7
R3
90.9k
R3
90.9k
C6
0.1uF
25V
C6
0.1uF
25V