DC786A - Schematic

A
B
+48V INPUT
C
D
RS
.008
1/2W
MIN. TRACE WIDTH FOR HIGH CURRENT PATH = 500 MILS
E
Q1
FDB3632
4
+48V / 5A OUTPUT
3
E1
E2
VDD
3
N/C
R12
10K
1%
MIN. ISOLATION LANE WIDTH = 55 MILS
C2
0.1uF
X7R
R3
2.67K
1%
CF
0.1uF
X7R
R2
4.42K
1%
R13
5.11K
1%
+5V
24
SOURCE
23
N/C
22
4
UV
N/C
21
5
OV
GPIO
20
INTVCC
19
FB
18
6
GND
7
ON
8
SCL
ADR2
17
9
SDAI
ADR1
16
10
SDAO
ADR0
15
11
ALERT
BD_PRST
14
ADIN
13
12
1
2
3
A1
WP
7
A2
SCL
6
4
VSS
SDA
5
TP1
SMT PAD
4
JP5
ADR1
3
R14
10K
1%
1
JP4
ADR0
4
E5
R17
(Opt.)
SCALING
FULL SCALE
3
E6
GND
EXT
2
+48V INPUT
SHORT PIN
SCL
SMT PAD
SCL
2
43.0
38.5
69.2
71.1
2
1
PROBE GND
R21
1K
Q2
VN0605T
1
Q3
VN0605T
R25
100K
3
SDAI
D6
LED (Green)
SCL
D7
LED (Green)
1
R26
100K
2
R24
100K
R22
1K
Q4
VN0605T
2
SDAO
D5
LED (Green)
1
2
1
R23
100K
2
ALERT
ALERT
D4
LED (Red)
3
3
ALERT
E12
R20
1K
3
R19
1K
SDAO
E11
OV
GND
E9
SDAO
UV
GND
SDAI
E10
OFF
E7
SHORT PIN
JP1
BD_PRST
SDAI
Q5
VN0605T
E16
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
1
GND
GND
E13
Customer Notice
GND
E14
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.
E15
NOTES: UNLESS OTHERWISE SPECIFIED
A
2.56V
TP2
2
V
ADIN
A/D
JP8
ADIN SELECT
E8
INPUT
RANGE
ON
INTVCC
E4
1
CT
0.1uF, 50V
X7R
4
JP6
ADR2
3
A0
JP2
ON CONFIG
+
3
VCC
8
R10
13K
1/4W
1
1
1
COUT
(Opt.)
R8
12.1K
1%
I2C
ADDRESS
2
R16
5.11K
1%
U2
24LC025
R7
147K
1%
E3
2
COM
3
SPLIT
2
4
6
8
10
12
14
1
JP3
SDA
R4
13K
1/4W
I2C
R18
5.11K
1%
C4
0.1uF, 50V
X7R
AUTO
R15
5.11K
1%
JP7
I2C PORT
1 + +
3 + +
5 + +
7 + +
9 + +
11 + +
13 + +
C1
6800pF,100V
X7R
PWRGD (GPIO)
2
3
D8
1N4148W
1
D3
LED (Red)
2
TIMER
2
1
2
GATE
4
2
SENSE
2
2
+
U1
LTC4260CGN
1
FLOAT
R1
49.9K
1%
HIGH
R27
49.9K
1%
LOW
R11
392K
1%
3
CSNUB
0.01uF,100V
X5R
2
Z1
SMBT70A
D2
LED (Green)
3
CIN
(Opt.)
1
R9
13K
1/4W
1
RSNUB
100
R6
100K
R5
10
3
4
1
C3
0.1uF, 50V
X7R
D1
LED (Green)
B
C
D
LINEAR TECHNOLOGY CORPORATION
1630 McCARTHY BLVD.
MILPITAS, CA. 95035
408-432-1900
408-434-0507 FAX
Title
200W Positive 48V Hot Swap Controller With
Current and Voltage Monitoring
Size
Document Number
Date:
Friday, August 06, 2004
Demo Circuit 786A
LTC4260CGN
Sheet
E
1
of
1
Rev
1
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