DC1052A - Schematic

1
4
5
6
7
R12
10K
1%
1
2
3
OFF
C1
0.1uF
16V
C2
0.1uF
16V
JP2
SENSE+
16
SENSE-
15
3
UV
ISET
14
4
OV
IMON
13
5
TIMER
FB
12
6
INTVCC
FAULT
11
PG
10
7
GND
8
SOURCE
GATE
RSET1
(Opt.)
D6
LED
(RED)
PG
FAULT
R8
10
3
2
1
R11
1K
C3
0.01uF
JP1
9
POSITIVE 24V HOT SWAP
1
1
GND
E3
E5
FAULT Output
E6
PG
E7
IMON
E8
ISET
Alternate Part For Q1
SUM110MO3-03P
B
R13
.002
C6
0.1uF
16V
UV
4
OV
5
TIMER
6
SENSE-
15
ISET
14
IMON
13
FB
12
FAULT
11
PG
10
INTVCC
7
GND
8
SOURCE
GATE
RSET2
(Opt.)
RMON2
20K
1%
1
D13
LED
(RED)
PG
R18
10
D10
(Opt.)
D14
(Opt.)
GND
3
2
1
Signal
Auto-Retry
JP3
E11
R19
1K
C5
0.01uF
AUX_UV
FAULT
3
2
1
D11
LED
(GRN)
4
1
D12
LED
(RED)
FAULT
12V/7.5A
2
VDD
3
16
COUT2
(Opt.)
R15
3.3K
E10
2
2
SENSE+
2
C4
0.1uF
16V
NC
2
2
E12
1
Q2
Si7880ADP
R17
3.3K
1
R16
3.3K
2
1
1
2
D9
LED
(GRN)
U2
LTC4218CDHC-12
+ CIN2
(Opt.)
VOUT
3
2
1
1
8
7
6
5
R14
3.3K
1
E9
D8
SMBJ12A
GND
A
Signal
Auto-Retry
B
C
24V/7.5A
D4
LED
(GRN)
D3
(Opt.)
R9
10K
1%
D7
(Opt.)
FAULT
RMON1
20K
1%
COUT1
(Opt.)
E2
2
VDD
R7
158K
1%
R4
6.8K
1206
2
NC
2
R6
6.8K
1206
2
2
E4
1
D5
LED
(RED)
Q1
Si7880ADP
2
R10
3.24K
1%
ON
R5
6.8K
1206
VOUT
3
2
1
1
U1
LTC4218CGN
1
1
+ CIN1
(Opt.)
D2
LED
(GRN)
AUX_UV
12VIN
8
4
R3
200K
1%
2
D1
SMBJ24A
8
7
6
5
1
R2
6.8K
1206
2
E1
A
GND
3
R1
.002
1
24VIN
2
C
OFF
ON
JP4
9
POSITIVE 12V HOT SWAP
E13
FAULT Output
E14
PG
E15
IMON
E16
ISET
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
LINEAR TECHNOLOGY CORPORATION
Customer Notice
D
Table
ASSEMBLY
U1
DC1052A-A
LTC4218CGN
LTC4218CDHC-12
DC1052A-B
Future Use
Future Use
1
U2
2
3
4
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
Supplied For Use With Linear Technology Parts.
5
6
D
1630 McCARTHY BLVD.
MILPITAS, CA. 95035
PHONE (408) 954-8400 FAX (408) 434-0507
Title
Size
LTC4218CGN, LTC4218CDHC-12
Positive 24V, Positive 12V Hot Swap
Document Number
Rev
Demo Circuit 1052A-A/B
Date: Tuesday, February 05, 2008
7
Sheet
1
of
8
1
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