The LTC4257CS8#TRPBF is a sophisticated interface controller designed for Power Over Ethernet (PoE) applications, crafted by Linear Technology. This compact, highly integrated component is essential for networking equipment like VoIP phones, wireless access points, and network cameras that require power to be supplied over standard Ethernet cables.

Key Features

• IEEE 802.3af Compliant: The controller adheres to the stringent IEEE 802.3af standard for PoE, ensuring compatibility with other compliant devices and systems.
• Integrated Power Device: It comes with an integrated MOSFET to provide a seamless and efficient power solution.
• Signature Resistor Detection: The LTC4257CS8#TRPBF includes a built-in signature resistor detection mechanism, which is used to confirm the presence of a valid PoE load.
• Classification Current: A classification current feature is also available, which allows the power sourcing equipment to determine the power requirements of the powered device.
• Overcurrent Protection: The device includes robust overcurrent protection to safeguard against excessive power draw that could potentially damage the network.
• Thermal Shutdown: Thermal shutdown functionality is incorporated to prevent overheating and ensure reliable operation under various conditions.

Product Specifications

• Package: 8-Lead Plastic SOIC
• Temperature Range: Industrial (-40°C to 85°C)
• Lead-Free and RoHS Compliant
• Part Number: LTC4257CS8#TRPBF

The LTC4257CS8#TRPBF is available in a compact SOIC-8 package, making it an excellent choice for space-constrained applications. Its industrial temperature rating ensures stable operation in a wide range of environments. Moreover, as a lead-free and RoHS-compliant product, it meets modern environmental standards, reducing the ecological impact of electronic components.

Whether you are developing a new PoE device or upgrading an existing system, the LTC4257CS8#TRPBF from Linear Technology offers a reliable and efficient solution for integrating power and data transmission over a single Ethernet cable.