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PSE_N3
PSE_N1
J27
P1
J28
P2
J15
P4
J16
P3
5
4
1
2
3
6
7
8
9
10
J18
22V
D9
22V
D6
22V
D5
1:1
1:1
1:1
1:1
22nF
75
22nF
75
22nF
75
22nF
75
1nF
2kV
MDCT3
1
MD3-
2
MD3+
3
MD2+
4
MD2-
5
MDCT2
6
MDCT4
7
MD4+
8
MD4-
9
MD1-
10
MD1+
11
MDCT1
12
13
14
15
16
VDC1+
17
VDC1-
18
VDC2+
19
VDC2-
20
Yellow
Green
Green
Shield GND
1 MX1+
2 MX1-
3 MX2+
6 MX2-
4 MX3+
5 MX3-
7 MX4+
8 MX4-
J19
2 Pair Port 1
PSE_N2
1:1
1:1
1:1
1:1
22nF
75
22nF
75
22nF
75
22nF
75
1nF
2kV
MDCT3
1
MD3-
2
MD3+
3
MD2+
4
MD2-
5
MDCT2
6
MDCT4
7
MD4+
8
MD4-
9
MD1-
10
MD1+
11
MDCT1
12
13
14
15
16
VDC1+
17
VDC1-
18
VDC2+
19
VDC2-
20
Yellow
Green
Green
Shield GND
1 MX1+
2 MX1-
3 MX2+
6 MX2-
4 MX3+
5 MX3-
7 MX4+
8 MX4-
J20
2 Pair Port 2
1:1
1:1
1:1
1:1
22nF
75
22nF
75
22nF
75
22nF
75
1nF
2kV
MDCT3
1
MD3-
2
MD3+
3
MD2+
4
MD2-
5
MDCT2
6
MDCT4
7
MD4+
8
MD4-
9
MD1-
10
MD1+
11
MDCT1
12
13
14
15
16
VDC1+
17
VDC1-
18
VDC2+
19
VDC2-
20
Yellow
Green
Green
Shield GND
1 MX1+
2 MX1-
3 MX2+
6 MX2-
4 MX3+
5 MX3-
7 MX4+
8 MX4-
J8
2 Pair Port 3
PSE_N4
1:1
1:1
1:1
1:1
22nF
75
22nF
75
22nF
75
22nF
75
1nF
2kV
MDCT3
1
MD3-
2
MD3+
3
MD2+
4
MD2-
5
MDCT2
6
MDCT4
7
MD4+
8
MD4-
9
MD1-
10
MD1+
11
MDCT1
12
13
14
15
16
VDC1+
17
VDC1-
18
VDC2+
19
VDC2-
20
Yellow
Green
Green
Shield GND
1 MX1+
2 MX1-
3 MX2+
6 MX2-
4 MX3+
5 MX3-
7 MX4+
8 MX4-
J7
2 Pair Port 4
GND
47µF
C16
Port4_Date1_N
Port4_Date2_P
Port4_Date2_N
Port4_Date3_P
Port4_Date3_N
Port4_Date4_P
Port4_Date4_N
Port3_Date2_P
Port3_Date2_N
Port3_Date3_P
Port3_Date3_N
Port3_Date4_P
Port3_Date4_N
Port1_Date3_P
Port1_Date3_N
Port1_Date4_P
Port2_Date2_N
Port2_Date3_P
Port2_Date4_P
Port2_Date4_N
GND
VPWR
PSE_N1
PSE_N2
PSE_N3
PSE_N4
VPWR
VPWR
VPWR
VPWR
GND
PSE_N1
PSE_N4
PSE_N3
PSE_N2
2
3
4
1
5
6
7
8
J10
Port4 Data
2
3
4
1
5
6
7
8
J11
Port3 Data
2
3
4
1
5
6
7
8
J23
Port2 Data
2
3
4
1
5
6
7
8
J22
Port1 Data
J14
P7
J13
P8
22V
D7
22V
D4
PSE_N7
PSE_N8
Port8&7_Data2_N
VPWR
PSE_N7
PSE_N8
2
3
4
1
5
6
7
8
J12
Port8&7 Data
GND
J25
P6
J26
P5
22V
D11
22V
D8
PSE_N5
PSE_N6
Port6&5_Data2_N
Port6&5_Data3_P
Port6&5_Data3_N
Port6&5_Data4_P
Port6&5_Data4_N
PSE_N5
PSE_N6
2
3
4
1
5
6
7
8
J24
Port6&5 Data
5
4
1
2
3
6
7
8
9
10
J17
GND
47µF
C15
GND
VPWR
PSE_N5
PSE_N6
PSE_N7
PSE_N8
VPWR
Port3_Date1_N
Port3_Date1_P
Port4_Date1_P
Port1_Date4_N
Port1_Date2_N
Port1_Date2_P
Port1_Date1_N
Port1_Date1_P
Port2_Date1_P
Port2_Date1_N
Port2_Date2_P
Port2_Date3_N
Port8&7_Data4_N
Port8&7_Data4_P
Port8&7_Data3_P
Port8&7_Data1_P
Port8&7_Data2_P
Port8&7_Data3_N
Port8&7_Data1_N
Port6&5_Data1_P
Port6&5_Data1_N
Port6&5_Data2_P
22V
D10
TPS23880EVM-008 Port 1-4
TPS23880EVM-008 Port 5-8
2 Pair Port 4 (IEEE802.3at Type 2)
2 Pair Port 3 (IEEE802.3at Type 2)
2 Pair Port 1 (IEEE802.3at Type 2)
2 Pair Port 2 (IEEE802.3at Type 2)
4 Pair Port 1 (Dual IEEE802.3at Type 2)
4 Pair Port 2 (Dual IEEE802.3at Type 2)
TP12
GND
TP13
GND
GND
GND
EARTH
EARTH
TP11
GND
J29
7693
2200pF
2000V
C18
2200pF
2000V
C17
1:1
1:1
1:1
1:1
22nF
75
22nF
75
22nF
75
22nF
75
1nF
2kV
MDCT3
1
MD3-
2
MD3+
3
MD2+
4
MD2-
5
MDCT2
6
MDCT4
7
MD4+
8
MD4-
9
MD1-
10
MD1+
11
MDCT1
12
13
14
15
16
VDC1+
17
VDC1-
18
VDC2+
19
VDC2-
20
Yellow
Green
Shield GND
1 MX1+
2 MX1-
3 MX2+
6 MX2-
4 MX3+
5 MX3-
7 MX4+
8 MX4-
J21
1:1
1:1
1:1
1:1
22nF
75
22nF
75
22nF
75
22nF
75
1nF
2kV
MDCT3
1
MD3-
2
MD3+
3
MD2+
4
MD2-
5
MDCT2
6
MDCT4
7
MD4+
8
MD4-
9
MD1-
10
MD1+
11
MDCT1
12
13
14
15
16
VDC1+
17
VDC1-
18
VDC2+
19
VDC2-
20
Yellow
Green
Shield GND
1 MX1+
2 MX1-
3 MX2+
6 MX2-
4 MX3+
5 MX3-
7 MX4+
8 MX4-
J9
Blue
D12
Blue
D13
Blue
D15
Blue
D14
35.7k
R15
35.7k
R16
35.7k
R14
35.7k
R17
35.7k
R20
35.7k
R19
35.7k
R22
35.7k
R21
EVM Schematic, Layout Guidelines, PCB Assembly and Layer Plots
19
SLVUBP0A – May 2019 – Revised August 2019
Copyright © 2019, Texas Instruments Incorporated
TPS23881EVM: PoE, PSE, TPS23881 Evaluation Module
Figure 13. BOOST-PSEMTHR-007 (Motherboard) Schematic: Power Ports