The LTC4274CUHF#PBF is an integrated circuit (IC) component manufactured by Linear Technology Corporation (now part of Analog Devices). It is a multi-port power sourcing equipment (PSE) controller specifically designed for Power over Ethernet (PoE) applications.
Key features of LTC4274CUHF#PBF:
1. Multi-port PSE Controller: The LTC4274CUHF#PBF allows for the control and management of power sourcing in Ethernet applications that follow IEEE 802.3af/at/bt standards. It supports up to four independent PoE ports and can deliver up to 90W of power per port.
2. High Power Density: The IC component features a high-power density design that enables efficient power delivery without the need for external components like inductors. It utilizes a high-frequency switching power architecture, resulting in a compact footprint and reduced implementation cost.
3. Integrated PD Detection and Classification: The LTC4274CUHF#PBF integrates the Powered Device (PD) detection and classification functions required for PoE applications. It automatically detects the presence of PDs and determines their power requirements following the IEEE 802.3 standards.
4. Dynamic Power Allocation: This IC component offers advanced power management capabilities. It employs a dynamic power allocation scheme that intelligently distributes the available power among connected PDs based on their power demands. This feature ensures optimal power utilization and avoids overload conditions
