LT4295IUFD#TRPBF

Overview

The LT4295IUFD#TRPBF is a Powered Device (PD) power switch IC compliant with IEEE 802.3af, 802.3at, and 802.3bt standards. It operates within a supply voltage range of up to 60 V and supports an output power capability of 71 W. The device functions across a temperature range from -40°C to +85°C and utilizes a QFN-28 surface-mount package. Key electrical parameters include a maximum duty cycle of 70% and a quiescent operating current of 1 mA.

Feature Summary

• Supports IEEE 802.3bt Type 4 Powered Device applications with integrated forward/flyback controller interface
• Provides comprehensive protection mechanisms including overvoltage, undervoltage, and thermal shutdown
• Features programmable soft-start and current limit controls for stable power delivery

Applications

• IEEE 802.3bt Type 4 Powered Devices requiring high power budgets
• Industrial IoT endpoints utilizing Power over Ethernet
• Smart building sensors and actuators powered via LAN infrastructure

Procurement Notes

Verify the suffix #TRPBF indicates tape-and-reel packaging distinct from tube variants. Confirm RoHS compliance status through official Analog Devices documentation. Ensure the specific lot date code meets project requirements as availability may vary by region.

Selection Notes

Select this component when designing systems requiring full IEEE 802.3bt Type 4 support. The QFN-28 package offers thermal efficiency for high-power PD designs. Compare against LT4295IUFD#PBF if tube packaging is preferred for manufacturing processes.

Part Context

This part belongs to the LT4295 series of PoE/PD controllers. It integrates the power switch and control logic required for high-power Ethernet applications. The device simplifies design by combining switching elements with management features in a compact form factor.

Replacement Considerations

LT4295IUFD#PBF serves as the tube-packaged equivalent. Verify pinout compatibility and thermal performance similarities before substitution.