DC1840C - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
REV
2
KEY-575
V_LED
R12-R15
3.9k
1206
MSD
RESET
1
OUT4
RE4
10M
V_LED
V_LED
V_LED
RL4
1.5k
V_LED
J5
R3
OPT C14
0.1uF
2
1
3
4
5
6
5
6
7
8
7
8
9
10
9
10
11
12
11
12
13
14
13
14
Q10
Si2343CDS
OUT11
1
RE11
10M
V_LED
1
Q11
Si2343CDS
OUT12
2
1
RE12
10M
R4
OPT C13
0.1uF
REP2
5.1k
R6
5.1k
8
7
5
Q12
Si2343CDS
V_LED
C6
1000pF,2KV
1808
C7
1000pF,2KV
1808
C8
1000pF,2KV
1808
C9
1000pF,2KV
1808
WP
WP
A1
SCL
A2
SDA
VSS
TP1
3
13
18
3
19
20
E12
21
OUT5
OUT6
22
23
E13
24
25
26
E14
27
OUT7
OUT8
28
E16
29
E15
30
31
E17
32
E2
33
OUT11
OUT12
1
2
34
E1
3
4
VEE
1
2
3
4
5
6
7
8
9
10
C
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
B
28
29
30
31
32
33
34
SAMTEC
MMS-134-02-T-SV
NOTE: UNLESS OTHERWISE SPECIFIED
EEGND
1. ALL RESISTORS AND CAPACITORS ARE 0603.
2. INSTALL SHUNTS AS SHOWN.
CUSTOMER NOTICE
2
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
APPROVALS
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
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
APP ENG.
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.
4
12
17
E8
OUT9
OUT10
A0
10
15
E11
HD2X7-079-MOLEX
VCC
9
11
OUT3
OUT4
TECHNOLOGY
KIM T.
DILIAN R.
TITLE: SCHEMATIC
12-PORT IEEE802.3at PSE MOTHER BOARD
SIZE
5
8
16
I2C EXPANSION
24LC025-I/ST
6
RL12
1.5k
7
14
E9
U4
PORT12
LED12
GREEN
5
OUT1
OUT2
C2
0.1uF
2
RD12
2M
2
4
RL8
1.5k
2
RL11
1.5k
J6
3
REP1
5.1k
3
1
1
RD11
2M
2
RL10
1.5k
PORT11
LED11
GREEN
4
E5
VDD33
HD2X7-079-MOLEX
V_LED
2
1
PORT10
LED10
GREEN
RE8
10M
2
1
1
Q8
Si2343CDS
3
(NC)
PORT4
LED4
GREEN
PORT8
LED8
GREEN
2
INT#
RESET#
VDD33
3
2
V_LED
2
V_LED
1
RE10
10M
OUT8
3
OUT7
RE7
10M
1
SCL
SDAIN
SW2
MSD
E10
E6
E7
Q4
Si2343CDS
1
Q7
Si2343CDS
3
3
OUT9
Q9
Si2343CDS
OUT10
RD8
2M
2
2
RD10
2M
2
RL9
1.5k
RL7
1.5k
J1
(SDAOUT)
V_LED
PORT7
LED7
GREEN
1
Q6
Si2343CDS
3
RE6
10M
PORT9
LED9
GREEN
1
RE9
10M
RD7
2M
2
2
RD9
2M
A
1
2
3
Q5
Si2343CDS
OUT6
V_LED
1
OUT5
RE5
10M
RL6
1.5k
3
1
PORT6
LED6
GREEN
2
RD6
2M
1
1
1
2
RL5
1.5k
2
RD5
2M
PORT5
LED5
GREEN
1
AD2
AD3
AD6
6
TO DC590
B
2
1
2
6
E4
3
OUT3
RE3
10M
1
Q3
Si2343CDS
5
HI
3
MSD#
VDD33
SW1
RESET
2
RD4
2M
ADDRESS
4
E3
2
2
1
Q2
Si2343CDS
3
OUT2
1
RE2
10M
RL3
1.5k
LO
D
SW3
219-3MST
INT
SCL
SDA
2
2
RD3
2M
2
Q1
Si2343CDS
3
OUT1
RE1
10M
RL2
1.5k
3
1
1
1
1
2
2
RD2
2M
VDD33
LED13
GREEN
ON
3
R8-R11
3.9k
1206
PORT3
LED3
GREEN
INT
LED14
RED
DGND
E23 E24 E25 E26
R16 R17
OPT OPT
Q14
ZXTP19100CGTA
09-04-15
E20
R1
470
0805
2
4
R21
1k 1
0805
OPTIONAL PORT LED DRIVERS
RL1
1.5k
R2
470
0805
C12
1uF
DGND
C
RD1
2M
D31
DDZ9688
C11
1uF
E19
Q13
ZXTP19100CGTA
R5
100k
0805
PORT2
LED2
GREEN
C5
10uF
0805
1
R19
0
2
VEE
PORT1
LED1
GREEN
C4
0.01uF
2
BYP
4
AGND
1
GND
5
V_LED
E27
VEE
10A, 0154010
LITTELFUSE
SHDN
C3
1uF
1
0805
R7
20k
1206
F2
NEG
VEE
LED15
ORANGE
3
OUT
DATE
DILIAN R.
2MM, 34 PIN CONNECTOR
J8
D5
1.5SMC62A
+
2
MOLEX-50-84-1020
C1
47uF,100V
R20
1k
R23
OPT
0805
IN
APPROVED
DIGITAL CONNECTIONS
VDD33
E18
VDD33
3
1
1
2
1
D4
1.5SMC62A
D1
MMSZ4691T1G
1
R18
0
2
4
C10
1uF,100V
1210
2
MAIN SUPPLY IN
LT1761ES5-3.3
2
1
D3
S5BC
J2
OPT
R22
OPT
0805
1
D2
S5BC
2
2
D
10A, 0154010
LITTELFUSE
2
KEY-575
U5
POLARITY PROTECTION DIODE, TVS, FUSES TO BE INCLUDED
1
F1
2
J7
1
POS
51V - 57V
ANALOG CONNECTIONS
AGND
E22
DESCRIPTION
REBUILD WITH CHANGE
N/A
SCALE = NONE
DATE:
IC NO.
REV.
DEMO CIRCUIT 1680B
Friday, September 04, 2015
1
SHEET
2
1
OF
4
A
5
4
3
2
1
UPPER ROW
RP2
RQ2
J3B
SS-73100-046F
RR2
15
11
14
9
16
75 7
18
8
17
6
19
75 4
21
5
20
3
22
75 1
24
2
23
CA2
1000pF
2kV
1808
RW2
RX2
RY2
RZ2
75
75
75
75
111
112 1
113 2
114 3
4
115
116 5
117 6
118 7
8
CX2 0.01uF
100V 0805
CY2 0.01uF
100V 0805
D
J4L
RO4
31
1 32
2 33
3 34
4
35
5 36
6 37
7 38
8
RQ4
SS-73100-046F
CB2
1000pF
2kV
1808
DP2
S1B
RP4
J3D
SS-73100-046F
CZ2 0.01uF
100V 0805
WE, 749022017
OUT2
PORT 2
CW2 0.01uF
100V 0805
RR4
12
13
75 10
15
11
14
9
16
75 7
18
8
17
6
19
75 4
21
5
20
3
22
75 1
24
2
23
CA4
1000pF
2kV
1808
B
RQ1
J3A
SS-73100-046F
RR1
CA1
1000pF
2kV
1808
14
9
16
75 7
18
8
17
6
19
75 4
21
5
20
3
22
75 1
24
2
23
RW1
RX1
RY1
RZ1
75
75
75
75
PORT 1
CW1 0.01uF
100V 0805
101
102 1
103 2
104 3
4
105
106 5
107 6
108 7
8
CX1 0.01uF
100V 0805
CY1 0.01uF
100V 0805
J4K
CZ1 0.01uF
100V 0805
DP1
S1B
SHIELD
21
1 22
2 23
3 24
4
25
5 26
6 27
7 28
8
RP3
RQ3
SS-73100-046F
RR3
CA3
1000pF
2kV
1808
121
122
123
124
125
126
127
128
129
121
122
123
124
125
126
127
128
129
J3M
1
2
3
4
5
6
7
8
9
13
75 10
15
11
14
9
16
75 7
18
8
17
6
19
75 4
21
5
20
3
22
75 1
24
2
23
RY4
75
CY4 0.01uF
100V 0805
75
91
92 1
93 2
94 3
4
95
96 5
97 6
98 7
8
D
J4J
SS-73100-046F
CZ4 0.01uF
100V 0805
CB4
1000pF
2kV
1808
C
SS-73100-046F
DATA/PoE OUT
75
CW3 0.01uF
100V 0805
RX3
75
CX3 0.01uF
100V 0805
RY3
75
CY3 0.01uF
100V 0805
75
OUT3
81
82 1
83 2
84 3
4
85
86 5
87 6
88 7
8
J4I
B
SS-73100-046F
CB3
1000pF
2kV
1808
DN3
S1B
VEE
TECHNOLOGY
KIM T.
DILIAN R.
TITLE: SCHEMATIC
12-PORT IEEE802.3at PSE MOTHER BOARD
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
2
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
APPROVALS
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
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
APP ENG.
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
3
PORT 3
CZ3 0.01uF
100V 0805
DP3
S1B
SS-73100-046F
4
RW3
RZ3
WE, 749022017
CUSTOMER NOTICE
J4M
5
CX4 0.01uF
100V 0805
DP4
S1B
12
LOWER ROW
VEE
1
2
3
4
5
6
7
8
9
RO3
J3C
SS-73100-046F
DN1
S1B
A
C
CB1
1000pF
2kV
1808
WE, 749022017
OUT1
75
T3
DATA IN
RJ45
RP1
15
11
DATA/PoE OUT
RJ45
1
1 2
2 3
3 4
4
5
5 6
6 7
7 8
8
75 10
RX4
PORT 4
VEE
SHIELD
RJ45
A
RO1
13
CW4 0.01uF
100V 0805
DN4
S1B
T1
12
75
RZ4
OUT4
VEE
DATA IN
RW4
WE, 749022017
DN2
S1B
C
DATA/PoE OUT
RJ45
11
1 12
2 13
3 14
4
15
5 16
6 17
7 18
8
75 10
RJ45
RJ45
RO2
13
T4
DATA IN
RJ45
B
D
12
DATA/PoE OUT
RJ45
T2
DATA IN
N/A
SCALE = NONE
DATE:
IC NO.
REV.
DEMO CIRCUIT 1680B
Friday, September 04, 2015
1
SHEET
2
2
OF
4
A
5
4
3
2
1
UPPER ROW
RQ6
J3F
SS-73100-046F
RR6
15
11
14
9
16
75 7
18
8
17
6
19
75 4
21
5
20
3
22
75 1
24
2
23
CA6
1000pF
2kV
1808
RW6
RX6
RY6
RZ6
75
75
75
75
71
72 1
73 2
74 3
4
75
76 5
77 6
78 7
8
CX6 0.01uF
100V 0805
CY6 0.01uF
100V 0805
H
J4H
RO8
71
1 72
2 73
3 74
4
75
5 76
6 77
7 78
8
RQ8
SS-73100-046F
RR8
13
75 10
15
11
14
9
16
75 7
18
8
17
6
19
75 4
21
5
20
3
22
75 1
24
2
23
CA8
1000pF
2kV
1808
CB6
1000pF
2kV
1808
DP6
S1B
RP8
J3H
SS-73100-046F
CZ6 0.01uF
100V 0805
WE, 749022017
OUT6
PORT 6
CW6 0.01uF
100V 0805
12
41
1 42
2 43
3 44
4
45
5 46
6 47
7 48
8
RP5
RQ5
J3E
SS-73100-046F
RR5
CA5
1000pF
2kV
1808
75 10
15
11
14
9
16
75 7
18
8
17
6
19
75 4
21
5
20
3
22
75 1
24
2
23
DATA/PoE OUT
RW5
RX5
RY5
RZ5
75
75
75
75
PORT 5
CW5 0.01uF
100V 0805
61
62 1
63 2
64 3
4
65
66 5
67 6
68 7
8
CX5 0.01uF
100V 0805
CY5 0.01uF
100V 0805
G
J4G
61
1 62
2 63
3 64
4
65
5 66
6 67
7 68
8
DP5
S1B
RP7
RQ7
J3G
SS-73100-046F
CZ5 0.01uF
100V 0805
RO7
SS-73100-046F
CB5
1000pF
2kV
1808
WE, 749022017
OUT5
75
CX8 0.01uF
100V 0805
RY8
75
CY8 0.01uF
100V 0805
RZ8
75
CZ8 0.01uF
100V 0805
RR7
CA7
1000pF
2kV
1808
12
13
75 10
15
11
14
9
16
75 7
18
8
17
6
19
75 4
21
5
20
3
22
75 1
24
2
23
J4F
SS-73100-046F
CB8
1000pF
2kV
1808
C
DATA/PoE OUT
RW7
75 CW7 0.01uF
100V 0805
RX7
75
RY7
75
RZ7
75
41
42 1
43 2
44 3
4
45
46 5
47 6
48 7
8
CY7 0.01uF
100V 0805
B
J4E
SS-73100-046F
CZ7 0.01uF
100V 0805
CB7
1000pF
2kV
1808
DP7
S1B
OUT7
PORT 7
CX7 0.01uF
100V 0805
WE, 749022017
DN7
S1B
DN5
S1B
VEE
VEE
LOWER ROW
CUSTOMER NOTICE
A
TECHNOLOGY
KIM T.
DILIAN R.
TITLE: SCHEMATIC
12-PORT IEEE802.3at PSE MOTHER BOARD
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
4
3
2
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
APPROVALS
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
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
APP ENG.
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
5
51
52 1
53 2
54 3
4
55
56 5
57 6
58 7
8
T7
DATA IN
RJ45
RO5
RX8
PORT 8
VEE
RJ45
B
RJ45
E
13
CW8 0.01uF
100V 0805
DN8
S1B
T5
12
75
DP8
S1B
OUT8
VEE
DATA IN
D
RW8
WE, 749022017
DN6
S1B
C
DATA/PoE OUT
RJ45
RP6
75 10
RJ45
51
1 52
2 53
3 54
4
55
5 56
6 57
7 58
8
13
T8
DATA IN
RJ45
RJ45
F
RO6
12
DATA/PoE OUT
RJ45
T6
DATA IN
D
N/A
SCALE = NONE
DATE:
IC NO.
REV.
DEMO CIRCUIT 1680B
Friday, September 04, 2015
1
SHEET
2
3
OF
4
A
5
4
3
2
1
UPPER ROW
RQ10
J3J
SS-73100-046F
RR10
15
11
14
9
16
75 7
18
8
17
6
19
75 4
21
5
20
3
22
75 1
24
2
23
CA10
1000pF
2kV
1808
RW10
RX10
RY10
RZ10
31
32 1
33 2
34 3
4
35
36 5
37 6
38 7
8
75 CX10 0.01uF
100V 0805
75 CY10 0.01uF
100V 0805
L
J4D
RO12
111
1 112
2 113
3 114
4
115
5 116
6 117
7 118
8
RQ12
SS-73100-046F
RR12
13
75 10
15
11
14
9
16
75 7
18
8
17
6
19
75 4
21
5
20
3
22
75 1
24
2
23
CA12
1000pF
2kV
1808
CB10
1000pF
2kV
1808
DP10
S1B
RP12
J3L
SS-73100-046F
75 CZ10 0.01uF
100V 0805
WE, 749022017
OUT10
PORT 10
75 CW10 0.01uF
100V 0805
12
B
81
1 82
2 83
3 84
4
85
5 86
6 87
7 88
8
RP9
RQ9
J3I
SS-73100-046F
RR9
CA9
1000pF
2kV
1808
75 10
15
11
14
9
16
75 7
18
8
17
6
19
75 4
21
5
20
3
22
75 1
24
2
23
DATA/PoE OUT
RW9
RX9
RY9
RZ9
75
75
75
75
PORT 9
CW9 0.01uF
100V 0805
21
22 1
23 2
24 3
4
25
26 5
27 6
28 7
8
CX9 0.01uF
100V 0805
CY9 0.01uF
100V 0805
K
J4C
101
1 102
2 103
3 104
4
105
5 106
6 107
7 108
8
DP9
S1B
RP11
RQ11
J3K
SS-73100-046F
CZ9 0.01uF
100V 0805
RO11
SS-73100-046F
RR11
CA11
1000pF
2kV
1808
CB9
1000pF
2kV
1808
WE, 749022017
OUT9
RY12
75 CY12 0.01uF
100V 0805
RZ12
75 CZ12 0.01uF
100V 0805
12
13
75 10
15
11
14
9
16
75 7
18
8
17
6
19
75 4
21
5
20
3
22
75 1
24
2
23
J4B
SS-73100-046F
C
DATA/PoE OUT
RW11
75 CW11 0.01uF
100V 0805
RX11
75 CX11 0.01uF
100V 0805
RY11
75 CY11 0.01uF
100V 0805
RZ11
1
2 1
3 2
4 3
4
5
6 5
7 6
8 7
8
B
J4A
SS-73100-046F
CB11
1000pF
2kV
1808
DP11
S1B
OUT11
PORT 11
75 CZ11 0.01uF
100V 0805
WE, 749022017
DN11
S1B
DN9
S1B
VEE
VEE
LOWER ROW
CUSTOMER NOTICE
A
TECHNOLOGY
KIM T.
DILIAN R.
TITLE: SCHEMATIC
12-PORT IEEE802.3at PSE MOTHER BOARD
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
4
3
2
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
APPROVALS
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
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
APP ENG.
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
5
11
12 1
13 2
14 3
4
15
16 5
17 6
18 7
8
CB12
1000pF
2kV
1808
T11
DATA IN
RJ45
RO9
75 CX12 0.01uF
100V 0805
VEE
RJ45
RJ45
I
13
RX12
PORT 12
DN12
S1B
T9
12
75 CW12 0.01uF
100V 0805
DP12
S1B
OUT12
VEE
DATA IN
D
RW12
WE, 749022017
DN10
S1B
C
DATA/PoE OUT
RJ45
RP10
75 10
RJ45
91
1 92
2 93
3 94
4
95
5 96
6 97
7 98
8
13
T12
DATA IN
RJ45
RJ45
J
RO10
12
DATA/PoE OUT
RJ45
T10
DATA IN
D
N/A
SCALE = NONE
DATE:
IC NO.
REV.
DEMO CIRCUIT 1680B
Friday, September 04, 2015
1
SHEET
2
4
OF
4
A
5
4
3
2
1
REVISION HISTORY
ECO
VDD33
2
23
GP0
GP1
24
MSD
14
22
1
MID
SCL
SDAIN
SDAOUT
INT#
RESET#
2
TX+
TD+
1
CT
2
47
DNA
GATE12
Q1
PSMN075
RB1-RB4
DESCRIPTION
REBUILD WITH CHANGE
APPROVED
DATE
DILIAN R.
05-28-15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
D
REQUIRED S1B DIODE PROTECTION
SHOWN ON MOTHER BOARD.
See NOTE 3
S1B
OUTn
S1B
SAMTEC, TMM134-01-T-S-RA
VEE
C1
0.22uF
X7R
0805
100V
G1
NOTE 1
4 X 1.00
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
OUT12
OUT12 38
SENSE12
VEE
G12 39
GATE11
OUT11
S12 40
OUT11 35
SENSE11
G11 36
OUT10
S11 37
GATE10
G10 32
SENSE10
S10 33
OUT9
OUT9 28
GATE9
OUT8
SENSE9
G9 29
S9 30
GATE8
OUT8 26
G8 25
OUT7
SENSE8
S8 24
GATE7
OUT7 23
OUT6
SENSE7
G7 22
S7 21
G6 19
OUT6 20
GATE6
SENSE6
S6 18
OUT5 17
OUT5
GATE5
SENSE5
G5 16
S5 15
OUT4
OUT4 13
GATE4
G4 12
OUT3
OUT11
OUT12
U2
LTC4270
SENSE4
S4 11
9
OUT3 10
8
S3
G3
GATE3
SENSE3
6
OUT2
OUT2
GATE2
5
SENSE2
4
G2
OUT1 3
OUT1
CNA
DPA
48
49
50
GATE1
NOTE 2
OUT9
OUT10
1
RA1-RA4
VEE
OUT7
OUT8
100
OUT10 31
D26
B1100
SENSE1
CPA
C26
0.1uF
2KV
1808
VEE
100
S2
BZT52C5V6-7-F
2
D1
SMAJ58A
1
2
C19
1uF
100V
1206
D31
OPT
1
C25
0.1uF
27
XIO1
14
XIO0
7
CAP2
34
AGND
G1
10
0805
C
VEE
S1
R35
R23
100
OUT5
OUT6
C24
2.2nF
R24
100
OUT3
OUT4
16
15
CT(2)
RX+
RD+
5
N/C
4
N/C
3
TD-
6
7
8
R21
R34 OPT
12k
1206
1/2W
C22
1uF
100
12
N/C
13
N/C
14
TX-
11
10
R15
100
R16
R22
R33
220k
R27
OPT
OUT1
OUT2
100
CT(3)CT(4)
WURTH 7490100143
4
1
9
RX-
T1
J2-9
J2-10
R26
OPT
R13
100
VEE
VEE
XIO1
XIO0
D5
GRN
XIO0
Q13B
BC846AS
5
R32
220k
C23
1uF
41
VEE
51
VEE
52
VEE
42
NC
43
NC
44
NC
45
NC
46
NC
53
VSSK
Q13A 2
BC846AS
R31
27k
0805
RD-
2
D4
GRN
XIO1
3 1
2
6 1
R30
27k
0805
AD2
AD3
AD6
MSD#
VDD33
GP1
GP0
J2-5
J2-6
VDD33
R14
1
J1
D3
GRN
GP0
1
2
3
1
AUTO
6
MID
J2-4
U1
LTC4271
DND
D2
GRN
GP1
1
HI
LO
2
21
AUTO
J2-3
15
18
SCL
SDAIN
SDAOUT
2
RESET#
MSD#
11
DPD
10
HI
LO
R29
560
2mm, 34 Pin Connector
9
CPD
CND
D
8
17
16
5
AD6
3
4
AD3
AD2
2
AD0
1
AD2
AD3
AD6
R28
560
JP2
MID
RESET
SDAOUT
SDAIN
SCL
INT#
INT
J2-2
AD1
25
DGND
19
20
VDD33
12
VDD33
C21
0.1uF
CAP1
DNC
NC
7
13
C20
1uF
R8 R9
0 0
JP1
AUTO
R7 0
AD0
3
AD1
J2-1
REV
__
C2
0.22uF
X7R
0805
100V
C3
0.22uF
X7R
0805
100V
C4
0.22uF
X7R
0805
100V
C5
0.22uF
X7R
0805
100V
C6
0.22uF
X7R
0805
100V
C7
0.22uF
X7R
0805
100V
C8
0.22uF
X7R
0805
100V
C9
0.22uF
X7R
0805
100V
C10
0.22uF
X7R
0805
100V
C11
0.22uF
X7R
0805
100V
C12
0.22uF
X7R
0805
100V
C
OUT1
G2
Q2
OUT2
4 X 1.00
PSMN075
RC1-RC4
G3
Q3
OUT3
4 X 1.00
REQUIRED SURGE
COMPONENTS (BULK 58V
TVS and BULK CAPACITANCE)
ON MOTHER BOARD.
PSMN075
RD1-RD4
G4
Q4
OUT4
PSMN075
RE1-RE4
4 X 1.00
G5
Q5
OUT5
4 X 1.00
PSMN075
RF1-RF4
B
G6
B
Q6
OUT6
4 X 1.00
PSMN075
RG1-RG4
G7
Q7
OUT7
4 X 1.00
VEE
PSMN075
RH1-RH5
G8
Q8
OUT8
4 X 1.00
PSMN075
RI1-RI5
G9
Q9
OUT9
4 X 1.00
PSMN075
RJ1-RJ5
G10
Q10
4 X 1.00
OUT10
PSMN075
RK1-RK5
G11
Q11
4 X 1.00
PSMN075
RL1-RL5
NOTE: UNLESS OTHERWISE SPECIFIED
A
OUT11
G12
Q12
4 X 1.00
1, ALL SENSE RESISTORS TIE TO VEE
AT ONE COMMON POINT.
2, VSSK CONNECTS TO THE COMMON SENSE
RESISTOR VEE POINT THROUGH AN ISOLATED
KELVIN SENSE TRACE.
3, ONE S1B PROTECTION DIODE FROM VEE TO
OUTn AND ONE S1B PROTECTION DIODE
FROM OUTn TO AGND SHOWN ON MOTHER
BOARD.
4, ALL RESISTORS ARE IN 0603.
ALL CAPACITORS ARE IN 0603.
OUT12
PSMN075
A
CUSTOMER NOTICE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
APPROVALS
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.
4
3
2
TECHNOLOGY
KIM T.
DILIAN R.
TITLE: SCHEMATIC
12-PORT PSE DAUGHTER CARD WITH DIGITAL ISOLATION
SIZE
IC NO.
N/A
SCALE = NONE
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
DATE:
LTC4270BIUKG, LTC4271IUF
DEMO CIRCUIT 1682B
05/28/2015, 11:48 AM
1
SHEET 1
REV.
1
OF 1
Similar pages