LTC4268CDKD-1

The LTC4268CDKD-1 is a Power over Ethernet (PoE) interface controller designed by Analog Devices, Inc. It is used for Power Sourcing Equipment (PSE) applications, typically found in network switches and routers to supply power to Ethernet devices such as IP cameras and wireless access points. The device complies with IEEE 802.3af/at standards, supporting both Type 1 and Type 2 power sourcing.
Key features include programmable current limit, power management, and detection and classification processes to ensure reliable and efficient power delivery. The controller operates with a wide input voltage range and integrates protection mechanisms against overcurrent and thermal overloads. Additionally, the LTC4268CDKD-1 includes features to monitor power usage and diagnostics to ensure stable operation.
Its compact, efficient design makes it suitable for high-density applications where multiple ports need to be powered over Ethernet cables without requiring dedicated power lines. The device is often chosen for its reliability, advanced functionality, and compliance with international PoE standards.

The LTC4268CDKD-1 is a Power over Ethernet (PoE) controller. Equivalent products include the Texas Instruments TPS23753, Maxim Integrated MAX5969, and the Microsemi PD64012. These alternatives offer similar PoE functionality, with varying features such as integrated power supply controllers, input voltage ranges, and efficiency levels. Always verify the specific requirements of your application to ensure compatibility when selecting an equivalent.

The LTC4268CDKD-1 is a Power over Ethernet (PoE) controller designed for PD (Powered Device) applications. It features compliance with the IEEE 802.3af standard, supporting up to 13W of power delivery. The device integrates a high-efficiency DC-DC converter controller, offering flexibility with a wide input voltage range. Key features include signature detection, classification, and inrush current limiting, ensuring safe and reliable power-up sequences. The LTC4268CDKD-1 also provides thermal protection, undervoltage lockout, and output overvoltage protection. It supports operation in both isolated and non-isolated configurations. The controller is optimized for applications such as IP phones, wireless access points, and security cameras. The compact package and minimal external component requirements make it suitable for space-constrained designs. Overall, the LTC4268CDKD-1 combines robust PoE functionality with efficient power conversion, making it a versatile choice for PoE-enabled devices.

The LTC4268CDKD-1 is a Power over Ethernet (PoE) controller designed for powered devices (PD) in PoE applications. It is a 20-pin device with several key functions:
1. Detection and Classification: The LTC4268CDKD-1 performs IEEE 802.3af compliant detection and classification of PoE power sourcing equipment (PSE).
2. Power Management: It manages power for devices requiring up to 12.95W, ensuring efficient power usage and compliance with PoE standards.
3. Isolation and Protection: The device provides integrated isolation and protection features, such as undervoltage lockout, thermal shutdown, and current limiting, to safeguard the PD circuitry.
4. DC-DC Controller: It includes an integrated DC-DC controller to convert the PoE input voltage to a lower, regulated output voltage suitable for the PD.
The combination of these functions allows the LTC4268CDKD-1 to efficiently manage and convert power in various PoE applications, ensuring safe and compliant operation.

The LTC4268CDKD-1 is manufactured by Analog Devices, Inc. This company is a globally recognized leader in the design and manufacturing of semiconductor products. Analog Devices specializes in the creation of integrated circuits used in analog and digital signal processing applications. Their products are widely used across various industries, including communications, healthcare, automotive, industrial, and consumer electronics. The company focuses on innovation and providing solutions that bridge the physical and digital worlds, enhancing performance and efficiency in electronic systems.

The LTC4268CDKD-1 is primarily used in Power over Ethernet (PoE) applications. It serves as a Powered Device (PD) interface controller, enabling devices to receive power and data over Ethernet cables. Key application areas include IP telephones, wireless access points, IP cameras, and other network devices requiring PoE functionality. It is suitable for devices that comply with IEEE 802.3af and IEEE 802.3at standards, ensuring efficient power management and data communication over the network infrastructure.

The LTC4268CDKD-1 is packaged in a DFN (Dual Flat No-Lead) package. Specifically, it comes in a DFN-16 package, which is a 16-lead package designed for efficient heat dissipation and compact size, commonly used for power management integrated circuits.