PAIR36
PAIR78
PAIR45
PAIR12
VSS
VDD
T2P
CDB
RTN
(ON)
(T2P)
CDB
SRTN
T2P
VDD
LED BIAS
+
-
SWITCHED
OUTPUT
+54V@1A
POE INPUT
ETHERNET DATA
EGND
2
2
NOTES
1
NOT USED
Use for switched RTN
GATE
ESNS
1
XDEN
XCLS
1
2
3
4
5
6
7
8
J1
1
2
3
4
5
6
7
8
J2
R8
63.4
FB1 500
D3
B2100
D7
SMAJ58A
C8
1000pF
R7
24.9k
C2
0.1uF
C9
1000pF
R9
75
C4
0.01uF
R10
75
C5
0.01uF
R11
75
C6
0.01uF
R12
75
C7
0.01uF
D8
B2100
D4
B2100
D9
B2100
D5
B2100
D10
B2100
D6
B2100
D11
B2100
FB2 500
+
C3
47uF
R4
12.1k
1
2
J3
D1
LN1271RAL
D2
LN1371G
R5
12.1k
R3
75
R6
75
R2
75
R1
75
R14
100k
TP1
TP11
TP3
TP5
TP4
TP7
TP2
TP8
TP9
D12
BZT52C18V
1
2
J5
C1
1000pF
1
2
3
4
J4
1 VDD
2 DEN
3 CLS
4 VSS
5
RTN
6
CDB
7
T2P
8
GATE
9
PWPD
U1
TPS2379DDA
PHY
LINE
1
2
3
4
5
6
9
11
10
13
12
14
T1
ETH1-230LD
PHY
LINE
1
2
3
4
5
6
9
11
10
13
12
14
T2
ETH1-230LD
R17
0.27
R13
150
R16
200k
TP6
TP12
Q1
FMMT493TC
R15
90.9
R18
TP10
Q3
IRFR3410PbF
Q2
BUK7275-100A
1
2
J6
R19
24.9k
1
2
J7
Schematic
4
Schematic
Figure 1. TPS2379EVM Schematic
4
TPS2379 EVM User’s Guide
SLVU687 – March 2012
Copyright © 2012, Texas Instruments Incorporated
