The LTC4267IDHC-3#TRPBF is a sophisticated Power over Ethernet (PoE) interface controller from Linear Technology, which is now part of Analog Devices, Inc. This component is designed to provide a seamless and efficient PoE interface for Power Sourcing Equipment (PSE) applications. It complies with the IEEE 802.3at (PoE+) standard, ensuring interoperability with other compliant devices.

Key Features

• IEEE 802.3at Compliance: The LTC4267IDHC-3#TRPBF adheres to the PoE+ standard, which allows for up to 25.5W of power to be delivered over Ethernet cabling, making it suitable for more power-hungry devices.
• Integrated Power MOSFET: This component integrates a power MOSFET, simplifying the design and reducing external component count, which can lead to a more compact and cost-effective solution.
• Advanced Power Management: It features sophisticated power management capabilities, including programmable classification, inrush current control, and current limit to protect both the power sourcing equipment and the powered device.
• Thermal Protection: The device includes thermal protection to prevent overheating, ensuring reliable operation under various environmental conditions.
• Auto-Resettable Fault Protection: The LTC4267IDHC-3#TRPBF is capable of auto-resetting fault protection, which helps in maintaining system integrity and reducing downtime.

Applications

The LTC4267IDHC-3#TRPBF is ideal for a range of applications that require reliable power delivery over Ethernet. These applications include, but are not limited to:

• VoIP Phones
• Wireless Network Access Points
• Security Cameras
• Network Attached Storage Devices

Product Specifications

The LTC4267IDHC-3#TRPBF comes in a compact DHC package and is designed for automated surface-mount assembly, making it suitable for high-volume production. Its operating temperature range and robust design ensure that it can be used in a variety of environments and industrial applications.

Conclusion

With its adherence to the IEEE 802.3at standard, integrated power MOSFET, and advanced power management features, the LTC4267IDHC-3#TRPBF by Linear Technology is a powerful solution for designers looking to implement PoE capabilities into their products. Its reliability and versatility make it a go-to choice for a wide array of PoE applications.