5
dc1555cfd
DEMO MANUAL DC1555C
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
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
LED
DRIVE
VIN
VO
UT
-30
TO
0V
0V
TO
6V
6V
TO
15V
15V
TO
30V
REVERSE
PRO
TECTED
UV
PRO
TECTED
GATE
O
N
O
V
PRO
TECTED
(UV
=
6V)
(OV
=
15V)
(L
OW
CURRENT
M
O
SFET,
SM
ALL
PACKAGE
O
PTION)
*
*
*
BOARD ASSEMBLY
DC1555C-A
U1
LTC4365CTS8
DC1555C-B
LTC4365CTS8-
1
Apr
15,
2015
2
Replaced Q1,
LED's & CLD's.
Vlad
Ostrerov
VIN
VO
UT
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
Vl
ad
O
strerov
Replaced LED's,
Added -B Assembly
-
1
O
ct 26,
2015
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
Vl
ad
O
strerov
Replaced LED's,
Added -B Assembly
-
1
O
ct 26,
2015
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
Vl
ad
O
strerov
Replaced LED's,
Added -B Assembly
-
1
O
ct 26,
2015
SIZE
MODIFY DATE:
.V
ER
.
ON
CI
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax:
(
408)434-0507
M
ilpi
tas,
CA 9
5035
Phone:
(
408)432-1900
1630
M
cC
arthy
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
2
DEM
O
CIRCUIT
1555C
Oct
26,
2015
1
1
HIGH
VOLTAGE
NFET DR
IVER
UV,
O
V AND
N/A
LTC4365CTS8/LTC4365CTS8-1
RB
Vlad O.
REVERSE
SUPPLY
PR
OTECTIO
N
SIZE
MODIFY DATE:
.V
ER
.
ON
CI
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax:
(
408)434-0507
M
ilpi
tas,
CA 9
5035
Phone:
(
408)432-1900
1630
M
cC
arthy
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
2
DEM
O
CIRCUIT
1555C
Oct
26,
2015
1
1
HIGH
VOLTAGE
NFET DR
IVER
UV,
O
V AND
N/A
LTC4365CTS8/LTC4365CTS8-1
RB
Vlad O.
REVERSE
SUPPLY
PR
OTECTIO
N
SIZE
MODIFY DATE:
.V
ER
.
ON
CI
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax:
(
408)434-0507
M
ilpi
tas,
CA 9
5035
Phone:
(
408)432-1900
1630
M
cC
arthy
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
2
DEM
O
CIRCUIT
1555C
Oct
26,
2015
1
1
HIGH
VOLTAGE
NFET DR
IVER
UV,
O
V AND
N/A
LTC4365CTS8/LTC4365CTS8-1
RB
Vlad O.
REVERSE
SUPPLY
PR
OTECTIO
N
C3
1000pF
(O
PT)
0805
E8
FAUL
T
E1
VIN
D2 GRN VO
UT
E4
O
V
R2 54.9k 1%
E5
SHDN
E3
UV
CL
D2
CM
J2000
TR
D6 DFL
T20A
(O
PT)
D1 GRN VIN
JP3
CO
NNECT LED
OPEN
VO
UT
1
3
2
R3 36.5k 1%
R1 1M 1%
D5
(O
PT)
BZT52C15T
CL
D3
CM
J2000
TR
E7
GND
C1 4.7µF 50V (O
PT)
Q2B 2N7002VC-7-F (O
PT)
G2
D2
S2
R4 510k
D7
DFL
T40A
(O
PT)
JP2
VIN
1
3
2
+
C2 47µF 35V (O
PT)
JP1
EN
DIS
SHDN
1
3
2
D3 RED FAUL
T
Q1B
Si4214DDY-T1-GE3
CL
D1
CM
J2000
TR
U1
LTC4365CTS8
VIN
1
GATE
8
UV
2
VOUT
7
FAULT
6
OV
3
GND
4
SHDN
5
E6
VO
UT
E2
GND
Q1A
Si4214DDY-T1-GE3
Q2A 2N7002VC-7-F (O
PT)
G1
D1
S1
D4
1N4148WT
