LTC4263CS#TRPBF

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LTC4263CS#TRPBF is a Power Over Ethernet (PoE) Controller from Linear Technology. It is specially designed to provide adequate power to remote and difficult-to-reach devices, such as telephones and surveillance cameras, using the standard POE voltage and current. It is able to step down the voltage and current of the 802.3af compliant PoE PSE to power PoE PDs, allowing the PDs to operate at non-standard terms. The LTC4263CS#TRPBF also implements a temperature-dependent programmable shutdown current, over voltage and overtemperature protection, and a PMBus™ Interface capable of delivering dynamic power control with feedback.

PoE (Power over Ethernet) is an Ethernet-based technology that uses existing twisted-pair cables to deliver power to powered devices (PDs) from power sourcing equipment (PSEs). It allows for the efficient provision of electrical power and data over the same cable. There are two different specifications for PoE; 802.3af and 802.3at, which support up to 15.4W and 51W respectively. It is important to have power controllers that are compliant with the PoE standards, as this allows for the controller to provide a consistent amount of power to the PDs.

The LTC4263CS#TRPBF controller is designed to provide the correct level of power to the PDs even if the PDs are operating under non-standard conditions. This is achieved through its ability to step down the voltage and current of the 802.3af compliant PoE PSE. The controller can precisely regulate the voltage level provided to the PDs while also providing temperature-dependent programmable shutdown current, over voltage and overtemperature protection. Additionally, the LTC4263CS#TRPBF controller is capable of delivering dynamic power control with feedback through its PMBus interface.

The LTC4263CS#TRPBF controller provides an efficient solution for providing power to PDs with the 802.3af POE standard. It is capable of stepping down the voltage and current of the POE PSE and providing dynamic power control with feedback. It also includes over voltage and overtemperature protection, as well as temperature-dependent programmable shutdown current. All of these features make the LTC4263CS#TRPBF controller an ideal choice for providing reliable and consistent power to devices using the 802.3af POE standard.

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