The LTC4274AIUHF-2#PBF is a high-performance, single-port Power over Ethernet (PoE) interface controller designed by Linear Technology for use in applications requiring IEEE 802.3at (PoE+) compliant Power Sourcing Equipment (PSE). This advanced IC is ideal for networked devices that need to deliver power to PoE-enabled devices such as IP cameras, wireless access points, and VoIP phones.

Key Features

• IEEE 802.3at Compliant: Supports the delivery of up to 25.5W of power to connected devices, ensuring compatibility with a wide range of PoE+ applications.
• Advanced Power Management: Features such as programmable classification, current limit, and disconnect detection provide efficient power allocation and safety for connected devices.
• Robust Protection: Integrated surge protection and thermal overload protection safeguard the controller and connected equipment from electrical hazards.
• Flexible Deployment: The compact QFN package allows for easy integration into a variety of PSE designs, including switches, routers, and standalone power injectors.
• High Reliability: The "I" grade version operates over an industrial temperature range, making it suitable for harsh environments.

Technical Specifications

• Package: 38-Lead QFN (5mm × 7mm)
• Input Voltage Range: 44V to 57V (compliant with PoE standard)
• Operating Temperature Range: –40°C to 85°C

The LTC4274AIUHF-2#PBF is designed for ease of use and minimal external component requirements, simplifying the design and reducing the time to market for PoE solutions. Its high level of integration and performance makes it an excellent choice for network equipment manufacturers looking to enhance their products with PoE capabilities.

Whether for enterprise systems, industrial applications, or emerging IoT devices, the LTC4274AIUHF-2#PBF by Linear Technology provides a reliable and efficient solution for integrating PoE technology into your products.