DC1555B - Schematic

5
4
3
2
1
REVISION HISTORY
C3
(OPT)
ECO
REV
-
1
APPROVED
DESCRIPTION
PRODUCTION
DATE
Vlad Ostrerov
09/25/12
1000pF
0805
D5
D
*
VIN
VOUT
-30 TO 0V
REVERSE PROTECTED
UV PROTECTED
0V TO 6V
6V TO 15V
E1
*
(LOW CURRENT MOSFET, SMALL PACKAGE OPTION)
G1
Q1A
SI4230DY-T1-GE3
D6
DFLT20A
(OPT)
E2
GND
Q1B
SI4230DY-T1-GE3
(UV = 6V)
(OV = 15V)
VIN
VIN
G2
GATE ON
OV PROTECTED
15V TO 30V
C
Q2A
2N7002V-7
(OPT)
D1
S1
D
BZT52C15T
(OPT)
Q2B
2N7002V-7
(OPT)
S2
D2
E6
VOUT
R4
510K
R1
1M
1%
D7
DFLT40A
(OPT)
R2
54.9K
1%
E3
UV
C1
4.7uF
50V
(OPT)
U1
1
VIN
GATE
8
2
UV
VOUT
7
3
OV
FAULT
6
4
GND
SHDN
5
E4
+
C2
47uF
35V
(OPT)
*
VOUT
8A MAX
C
E7
GND
E8
FAULT
OV
SHDN
EN
R3
36.5K
1%
LTC4365CTS8
1
2
B
B
3
DIS
JP1
E5
SHDN
LED DRIVE
D4
1N4148WT
1
VIN
VOUT
CONNECT
LED
2
3
CLD1
CCLM2000
2
3
OPEN
JP2
1
JP3
CLD3
CCLM2000
CLD2
CCLM2000
A
D1
GRN
VIN
D2
GRN
VOUT
D3
RED
FAULT
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 PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
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
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
APPROVALS
3
TECHNOLOGY
RB
Vlad O.
A
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
TITLE: SCHEMATIC
SIZE
N/A
SCALE = NONE
1630 McCarthy Blvd.
Milpitas, CA 95035 www.linear.com
Phone: (408)432-1900
Fax: (408)434-0507
HIGH VOLTAGE NFET DRIVER UV, OV AND
REVERSE SUPPLY PROTECTION
IC NO.
REV.
LTC4365CTS8
1
DEMO CIRCUIT 1555B
MODIFY DATE: Sep 25, 2012
2
SHEET
1
1
OF
1
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