Si34071 Datasheet - Skyworks

Si34071 90W Powered Device

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 main.

Si34071 Features

* include a main transformer bias winding input and a synchronous gate driver for secondary side FET control, or active clamp, depending on the topology. The Si34071 is available in a low-profile, 32-pin, 5 x 5 mm QFN package. KEY FEATURES

* Full IEEE 802.3bt compliance

* Synchronous

Si34071-Skyworks.pdf