The LT4276BHUFD#PBF is a cutting-edge Power over Ethernet (PoE) interface and switching regulator controller manufactured by Analog Devices Inc. This device is designed to simplify the implementation of PoE-powered devices (PDs) by integrating the necessary features to comply with the IEEE 802.3 PoE standard. The LT4276BHUFD#PBF is suitable for a wide range of applications, including wireless access points, security cameras, and IoT devices.

Key Features

• IEEE 802.3 Compliance: The product is fully compliant with the IEEE 802.3at (PoE+) and IEEE 802.3af (PoE) specifications, ensuring compatibility with other PoE equipment.
• Advanced Power Management: It features an integrated switching regulator controller, providing efficient power conversion and management for the powered device.
• LTC's Proprietary LTPoE++ Support: In addition to standard PoE, the LT4276BHUFD#PBF also supports LTC's proprietary LTPoE++ for up to 90W of delivered power, catering to devices requiring higher power levels.
• Hot Swap Capability: The device incorporates hot swap capability to allow for safe insertion and removal of networked devices without interrupting the power supply.
• Signature Resistor Detection: A signature resistor detection feature ensures proper identification and classification of PoE devices.
• Thermal Protection: The product includes thermal shutdown protection to prevent damage from overheating.

Product Specifications

The LT4276BHUFD#PBF operates over a wide input voltage range and is housed in a 28-lead QFN package. It is designed for rugged environments with an extended industrial temperature range. The device's programmable classification current allows for versatile power allocation and management based on the specific needs of the application.

Applications

Due to its robust design and versatile feature set, the LT4276BHUFD#PBF is ideal for a variety of applications that require reliable and efficient PoE capabilities. Its support for higher power levels makes it particularly well-suited for devices that go beyond the typical power requirements of standard PoE.