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PD70224 Arkusz danych(PDF) 16 Page - Microchip Technology

Numer części PD70224
Szczegółowy opis  Front-End PD Interface Controller
PDF  30 Pages
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Producent  MICROCHIP [Microchip Technology]
Strona internetowa  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PD70224 Arkusz danych(HTML) 16 Page - Microchip Technology

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Figure 3-3. PD70210AL Pinout
Top View
Bottom View
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VAUX
WA_EN
4P_HD_FLAG
4P_AT_FLAG
HD_FLAG
AT_FLAG
NC
NC
NC
NC
VAUX
WA_EN
4P_HD_FLAG
4P_AT_FLAG
HD_FLAG
AT_FLAG
NC
NC
NC
NC
SUPP_S1
SUPP_S2
RREF
RCLS
VPN_IN
VPN_IN
SUPP_S1
SUPP_S2
RREF
RCLS
VPN_IN
VPN_IN
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EPAD
Connect to
VPN_IN
70210AL
z z e3
YYWWNNN
Note:  Shaded pins do not exist.
The following table lists the pin descriptions for the PD70210/PD70210A devices.
Table 3-1. PD70210/PD70210A Pin Descriptions
Pin
Number
Pin Name
(PD70210A)
Pin Name
(PD70210)
Description
1
VPP
VPP
Upper rail of the incoming PSE voltage rail from the
positive terminal of the two OR-ed bridge rectifiers. The
corresponding lower PoE rail is VPN_IN.
2
RDET
RDET
Internally connects to VPN_IN during detection phase and
disengages after it is over. A 25 KΩ (or 24.9 KΩ) 1 %
resistor is connected between this pin and VPP.
3
SUPP_S1
SUPP_S1
Input pin for sensing the voltage on the diode bridge
connected to the data pairs. This pin, along with the
SUPP_S2 pin, can be used to distinguish between 2-pair
and 4-pair operation for PSEs that operate in 4-pairs but
do not generate the classification procedure on both
pairs, but one pair only. Signal is referenced to VPN_IN.
Place a 10 KΩ resistor in the input of this pin.
PD70210/PD70210A/PD70210AL
Pin Descriptions
© 2020 Microchip Technology Inc.
Datasheet
DS00003695A-page 16



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