LTC4274CIUHF#TRPBF

Overview

The LTC4274CIUHF#TRPBF is a single-channel Power over Ethernet (PoE) Powered Device controller compliant with IEEE 802.3at and 802.3af standards. It operates within a supply voltage range of 44V to 57V and supports a maximum output power of 38.7W. The device features an I2C interface for configuration and monitoring, housed in a 38-pin QFN package. It functions across an operating temperature range of -40°C to 85°C.

Feature Summary

• Supports IEEE 802.3at and 802.3af PoE standards
• Integrated I2C interface for control and monitoring
• Single-channel powered device controller architecture

Applications

• IEEE 802.3at PoE+ powered endpoints
• IEEE 802.3af PoE powered devices
• Network infrastructure equipment requiring PoE input

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the 'C' grade designation matches the required industrial temperature specifications for your application environment. Ensure compatibility with the host system's I2C bus requirements.

Selection Notes

Select this component for applications requiring strict adherence to IEEE 802.3at or 802.3af protocols. The integrated controller simplifies design by handling classification and power management tasks. Consider the 38-pin QFN footprint for PCB layout constraints and thermal performance requirements.

Part Context

This part belongs to the Analog Devices LTC4274 family of PoE controllers. It serves as a complete solution for managing power delivery from a PSE to a PD. The series includes variants with different packaging options and temperature grades to suit various manufacturing and operational needs.

Replacement Considerations

LTC4274AIUHF#TRPBF offers extended temperature range capabilities compared to the C-grade variant.