LTC4257IDD#TRPBF

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Power Over Ethernet (PoE) Controllers are an integral part of modern electronic systems because they allow an electrical device to be powered remotely over a network connection. The LTC4257IDD#TRPBF is a general-purpose PoE controller with integrated features such as 15kV ESD and surge protection, polyfuse and Reverse Polarity Protection, and a dynamic temperature range. It provides a robust solution for safely and efficiently powering IoT, building automation and surveillance systems, medical and industrial equipment, as well as other PoE-enabled devices.

The LTC4257IDD#TRPBF is also an ideal choice for automotive applications as it supports a wide input voltage range from 6.0 volts up to 32 volts over a wide temperature range. In addition, it can provide output currents up to 50mA at a full load of 110 volts. This controller is designed to maximize compatibility with existing PoE systems, allowing it to act as an intermediate bridge between a PSE (Power Sourcing Equipment) and an IEEE 802.3af/at compliant PD (Powered Device).

The LTC4257IDD#TRPBF is suitable in a variety of scenarios such as running data and powering a remote device, providing low power signal conditioning and signal level conversion, protecting against reverse polarity and overvoltage condition and high voltage fault protection. It also offers a built-in power meter to provide a cost effective and easy way to remotely measure and monitor the power consumed by the device.

The LTC4257IDD#TRPBF is configured by an I2C-controlled configuration and status register that can be used to enable over-current, undervoltage and thermal shutdown protection, as well as bypass and/or time delay of the thermal reset. In addition, it also supports three color LED outputs for indication of load and enable, fault or standby conditions. The LTC4257IDD#TRPBF also implements digital fault logging, allowing a system to detect short or open circuit faults in any of the four channels.

The LTC4257IDD#TRPBF can be used to safely and reliably power a wide range of PoE-enabled devices. Its efficient power conversion and protection capabilities, together with a wide input and output voltage range, make it an excellent choice for powering remote devices in a range of applications.

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