Product Overview: LTC4274IUHF#PBF

The LTC4274IUHF#PBF is a high-performance Power over Ethernet (PoE) controller designed by Linear Technology, which is now part of Analog Devices. This advanced product is specifically tailored for applications that require efficient and reliable power distribution over Ethernet cables. It is compliant with the IEEE 802.3at (PoE+) standard, as well as backward compatible with the IEEE 802.3af (PoE) standard, making it versatile for use in a wide range of network devices such as IP cameras, wireless access points, and VoIP phones.

Key Features

• IEEE 802.3at Compliant: The LTC4274IUHF#PBF supports the delivery of up to 25.5W of power per port, meeting the requirements of the more demanding PoE+ devices.
• Advanced Power Management: It includes features such as programmable classification, current limit, and overload protection, ensuring safe and efficient operation.
• High Efficiency: The controller operates with a minimum of external components, which reduces system complexity and enhances overall efficiency.
• Robust Design: Built-in thermal protection and rugged packaging (UHF-38) ensure reliability and durability in harsh environments.
• Flexible Deployment: It can be easily integrated into a variety of network equipment designs, providing a scalable solution for network expansion.

Technical Specifications

• Package: 38-Lead Plastic QFN (UHF)
• Operating Temperature Range: -40°C to 85°C
• Input Voltage Range: Suitable for applications requiring input voltages in the range of 44V to 57V.
• Interface: Features an I2C interface for monitoring and control of power usage.

Applications

The LTC4274IUHF#PBF is ideal for powering devices in a network where centralized power is advantageous. It simplifies the deployment of equipment in locations where power outlets are unavailable or difficult to install. This PoE controller is a critical component in building modern, efficient, and manageable networks.

About Linear Technology

Linear Technology, now part of Analog Devices, has a long-standing reputation for designing and manufacturing a wide array of high-performance analog integrated circuits. Their products are known for their quality, reliability, and cutting-edge technology, which are trusted by professionals in various industries around the globe.