The LTC4267IDHC-3#PBF is a sophisticated Power over Ethernet (PoE) interface controller designed by Linear Technology, now part of Analog Devices, to meet the demands of high-power applications that require up to 25.5W of power. This advanced component is essential for network devices such as wireless access points, security cameras, and VoIP phones, which benefit from the convenience and reliability of PoE technology.

Key Features:

• IEEE 802.3at Compliant: The LTC4267IDHC-3#PBF adheres to the IEEE 802.3at standard, ensuring compatibility with other PoE equipment and providing a safe and reliable power solution for devices requiring enhanced power levels.
• Integrated Power Device: This controller integrates a power MOSFET and sense resistor, which simplifies the design and reduces external component count, resulting in a more compact and cost-effective solution.
• Advanced Power Management: With its built-in signature resistor and classification current source, the LTC4267IDHC-3#PBF can communicate with PoE power sourcing equipment to negotiate the necessary power requirements for the connected device.
• Thermal Protection: The device is equipped with thermal shutdown capability to protect against overheating, ensuring the safety and longevity of both the controller and the powered device.
• High Surge Protection: Designed to handle high surge events, the LTC4267IDHC-3#PBF is robust against common electrical transients, making it suitable for harsh environments.

Applications:

The LTC4267IDHC-3#PBF is ideal for a variety of applications that require reliable power delivery over Ethernet cables. Its robust design and power management features make it an excellent choice for:

• Wireless Access Points
• Outdoor Security Cameras
• VoIP Phones
• Remote Computer Terminals
• Point of Sale Systems
• Industrial Controls

Product Specifications:

The LTC4267IDHC-3#PBF is packaged in a compact 16-lead DFN (5mm x 3mm) package, which is RoHS compliant and suitable for automated assembly processes. It operates over the industrial temperature range of -40°C to 85°C, making it versatile for a wide range of environmental conditions.