ST STM32H750B-DK User Manual

Figure 19. Power over Ethernet (PoE)
6 19
PoE
Title:
Size:
Reference:
Sheet: ofA4
Revision:
Project:
STM32H745I-Disco
MB1381B 02
06-SEP-19
H745XI
Date:
-
Variant:
Power Over Ethernet
Chassis
Chassis
Chassis
INPUT
5V_POE
5V_POE
LED_G_K
LED_G_A
LED_Y_A
Chassis
TD_N
TD_P
RD_N
RD_P
LED_G_K
LED_G_A
LED_Y_A
LED_Y_K
LED_G_A
LED_G_K
LED_Y_A
LED_Y_K
TD_N
TD_P
RD_N
RD_P
RD_P
TD_N
TD_P
RD_N
i
Diff Pair 100ohm
Matched Net Lengths [Tolerance = 100mil]
i
Diff Pair 100ohm
Matched Net Lengths [Tolerance = 100mil]
i
Diff Pair 100ohm
Matched Net Lengths [Tolerance = 100mil]
i
Diff Pair 100ohm
Matched Net Lengths [Tolerance = 100mil]
LED_Y_K
AGND
NOTE : The AGND is a dedicated plan.
The resistor 0 ohm must be very close to pin 9
NOTE : Place for additional ferrite beads
POE1
POE2
POE3
POE4 POE5
POE6
POE7
POE8
POE1
POE5
POE6
POE7
POE8
POE2
POE3
POE4
RX+
3
NC
5
NC
4
NC
7
RX-
6
NC
8
LED(Yellow)_A
10
LED(Yellow)_K
9
LED(Green)_K
11
LED(Green)_A
12
TX+
1
TX-
2
SH1
SH1
SH2
SH2
KRJ-CB4.2GYZNL
CN1
0R_0805
R13
0R_0805
R12
0R_0805
R82
75KR131
10K
R10
0R
R99
0R_0805
R72
10K
R87
1K
R57
1KR68
0R_0805
R34
0R_0805R1
13K
R52
13K
R33
20K
R35
0R
R4
10K
R58
1
2
3
6
7
89
10
11
14
15
16
H2019NL
T3
100nF, 100V
C6
1nF, 100V
C20
1nF, 100V
C17
1nF, 100V
C22
1nF, 100V
C19
1nF, 100V
C13
1nF, 100V
C8
1nF, 100V
C23
1nF, 100V
C91
1nF, 100V
C82
-
+
2
3
1
4
~ ~
DF01S
D4
-
+
2
3
1
4
~ ~
DF01S
D5
4
1
2
3 7
5
8
6
Pri
Bias
Sec
POE30P-50L
T2
SMAJ58A-TR
D1
75R
R27
75R
R11
75R
R15
75R
R28
2
4
3
1 5
7
6
8
Pri
Bias
Sec
T1
N/A
DNF
5.6uH
L1
4.7uF, 100V
C1
4.7uF, 100V
C2
4.7uF, 100V
C21
BAT46JFILM
D2
BAT46JFILM
D6
STPS2L40UF
D3
4 1
23
HMHA2801A
U4
K
3
A
5
REF
4
NC
1
N
C
2
TS431AILT
U5
RT
1
SS
2
AUXII
3
VIN
4
CS
13
COMP
14
VFB
15
AGND
16
RCLASS
5
AUXI_IRL
6
DCCL
7
GND
9
GD
10
VCC
11
nPGD
12
E
PA
D
E
P
VSS
8
PM8800ATR
U8
1
3
2
4
STN4NF20L
T4
10R
R32
10nF, 100V
C93
10nF, 100V
C92
100nF, 50V
C90
100nF, 50V
C59
100nF, 50V
C60
100nF, 50V
C30
124KR118
1uF, 25V
C61
1uF, 25V
C26
2K
R129
470pF, 100V
C58
56RR71
C14
N/A
DNF
68RR5
15R
R8
560pF
C12
47uF
C5 47uF
C3 47uF
C4
47uF
C11
100nF
C7
510R
R92
1nF
C37
10nF, 50V
C34
100pF, 50V
C28
22nF, 50V
C32
1nF
C10
100nF, 100V
C9
22nF, 50V
C51
VDD_ETH
200R(N/A)R6
DNF
0R47
R85
STPS1H100A
D7
NOTE : this diode must be placed close the
pin 8 and 9
UM2488
Electrical schematics
UM2488 - Rev 4
page 36/55

ST STM32H750B-DK Specifications

General

Brand	ST
Model	STM32H750B-DK
Category	Microcontrollers
Language	English