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STHS2375AM6F Datasheet(PDF) 8 Page - STMicroelectronics

Part # STHS2375AM6F
Description  IEEE 802.3af PoE Powered Device (PD) interface controller
PDF  20 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STHS2375AM6F Datasheet(HTML) 8 Page - STMicroelectronics

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Summary description
STHS237x
8/20
Figure 4.
Application circuit overview (STHS2375A/L, STHS2377A/L)
Note:
This configuration uses either data wires or spare wires for DC power.
Table 3.
IEEE802.3af PD power classes and corresponding RCLASS values
Class
Usage
Max. Power at Input of
PD (W)
Classification Load
Current Limits (mA)
RCLASS Resistor
(
Ω, 1%)
0
Default
0.44 to 12.95
0-4
4420
1
Optional
0.44 to 3.84
9-12
953
2
Optional
3.84 to 6.49
17-20
549
3
Optional
6.49 to 12.95
26-30
357
4
Reserved
Reserved(1)
1.
Class 4 is currently reserved and should not be used.
36-44
255
Data to Ethernet Physical Layer Device
100
k
Ω
100µF,
100V
+
0.1µF,
100V
To DC/DC
Converter
Data to Ethernet Physical Layer Device
CLASS
ILIM
SMAJ58A
RCLASS
RDET
RILIM
STHS2375A/L
STHS2377A/L
VSS
VDD
RTN
AI12240a
2x DF01S
RX
Pair
Spare
Pair
Spare
Pair
RJ-45
TX
Pair
PG
DET
C1
C2
24.9k
Ω,
1%



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