The LTC4267CDHC#TRPBF is a sophisticated Power over Ethernet (PoE) interface controller designed by Linear Technology to seamlessly facilitate the delivery of power over Ethernet cabling to powered devices (PDs). This integrated circuit is a key component for applications that require remote power for devices such as IP cameras, wireless access points, and VoIP phones, where it simplifies the process of power distribution and reduces the need for additional power supplies.

Key Features

• IEEE 802.3af Compliant: The LTC4267CDHC#TRPBF adheres to the IEEE 802.3af standard, ensuring compatibility with other compliant devices in a PoE system.
• Integrated Switching Regulator: It features an integrated switching regulator to provide a DC-DC conversion from the PoE supply to the required voltage for the powered device, enhancing efficiency and reducing external component count.
• Signature Resistor Detection: This controller incorporates signature resistor detection, which is a safety feature that prevents power from being applied unless a valid 25kΩ signature resistance is detected.
• Classification Current: It supports classification current, allowing the power sourcing equipment (PSE) to determine the power requirements of the PD based on its class.
• Thermal Protection: The device includes thermal protection to prevent overheating, ensuring reliable operation under varying conditions.

Applications

The LTC4267CDHC#TRPBF is ideal for a variety of applications that require remote power delivery. Its robust design and feature set make it suitable for:

• VoIP Phones
• Wireless Network Access Points
• Security Cameras
• Network Routers and Switches
• Remote Monitoring Systems

Package and Availability

This controller is available in a compact DHC package, which is suitable for space-constrained applications. The part number LTC4267CDHC#TRPBF indicates that the device is provided in tape and reel packaging, making it ideal for high-volume production needs.

The LTC4267CDHC#TRPBF from Linear Technology represents a reliable and efficient solution for implementing PoE capabilities in a wide range of electronic devices, ensuring seamless integration and operation within modern network infrastructures.