LTC4269CDKD-1#PBF - Integrated IEEE 802.3at Power over Ethernet Interface Controller

The LTC4269CDKD-1#PBF is an advanced Power over Ethernet (PoE) interface controller from Linear Technology, designed to simplify the implementation of PoE functionality in Ethernet-connected devices. It is fully compliant with the IEEE 802.3at standard, providing an end-to-end solution for delivering power over Ethernet cabling to powered devices (PDs). This product is ideal for applications such as remote wireless access points, security cameras, IP phones, and other networked devices that benefit from a centralized power source.

At the heart of the LTC4269CDKD-1#PBF is a robust PoE interface and a high-efficiency, switch-mode power supply controller. The integrated controller is capable of delivering up to 25.5 watts of power to the PD, ensuring a reliable power source for even the most demanding applications. It features an advanced signature detection and classification engine, which allows it to accurately detect the presence of a valid PoE power sourcing equipment (PSE) and to classify the power level required by the PD.

The LTC4269CDKD-1#PBF offers a comprehensive set of protection features to ensure the safety and reliability of the PoE system. It includes under-voltage lockout (UVLO), over-current protection, over-temperature protection, and robust thermal management capabilities. These features protect both the PD and the PSE from potential damage caused by electrical anomalies.

Designed for flexibility, the LTC4269CDKD-1#PBF supports a wide input voltage range and can be easily configured to meet the specific needs of various applications. It is available in a compact, thermally enhanced DFN package, which facilitates efficient heat dissipation and saves valuable board space.

Overall, the LTC4269CDKD-1#PBF is a highly integrated, feature-rich PoE interface controller that offers a cost-effective and high-performance solution for adding PoE capability to networked devices. Its compliance with the IEEE 802.3at standard and robust feature set make it an ideal choice for manufacturers looking to enhance their products with reliable power delivery over Ethernet infrastructure.