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Si34071

Part Number	Si34071
Manufacturer	Skyworks
Description	90W Powered Device
Published	Oct 14, 2023
Detailed Description	Si34071 Data Sheet The Si34071 integrates the signaling, control, and power conversion functions required in a Power ov...
Datasheet	Si34071 PDF File

Overview

Si34071 Data Sheet The Si34071 integrates the signaling, control, and power conversion functions required in a Power over Ethernet 802.
3btpowered device (PD) application.
The optimized architecture minimizes the solution footprint and external BOM while using standard, low cost components.
The integrated PoE PD interface fully complies with the IEEE 802.
3bt standard and uses external resistors to program the requested classification and detection signatures.
Connection to the PSE switch is maintained during no-load condition by an optional maintain-power-signature (MPS) signal.
An internal, current-mode controlled switching regulator converts the high voltage supplied over the 10/100/1000BASE-T Ethernet connection to a regulated, low-voltage output supply.
The switching regulator supports isolated flyback and forward converter topologies.
An external resistor tunes the switching frequency.
High efficiency features include a main transformer bias winding input and a synchronous gate dr...

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