LTC4269CDKD-1#TRPBF

Overview

The LTC4269CDKD-1#TRPBF is a Powered Device (PD) controller compliant with IEEE 802.3at standards, designed for high-power Power over Ethernet applications. It operates within a supply voltage range of up to 60 V and supports an output power capacity of 25.5 W. The device features a current limit of 100 mA and consumes 6.4 mA during operation. It is housed in a DFN-32 package suitable for surface mount installation and functions reliably across a temperature range of 0°C to +70°C.

Feature Summary

• Supports no-optocoupler flyback converter control for isolated power stages
• Integrates full IEEE 802.3at Powered Device classification and detection logic
• Provides comprehensive protection against overvoltage, overcurrent, and thermal faults

Applications

• High-power PoE powered devices requiring isolated DC-DC conversion
• Wireless access points and IP cameras utilizing IEEE 802.3at standards
• Industrial networking equipment needing robust power management

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing components. Confirm that the DFN-32 package dimensions match your PCB footprint requirements. Ensure the industrial temperature rating aligns with your operational environment constraints before finalizing procurement decisions.

Selection Notes

Select this component for designs requiring integrated PD classification and isolated flyback control without external optocouplers. Compare against non-isolated alternatives if system architecture permits direct connection. Verify compatibility with your chosen transformer specifications for the no-opto flyback topology.

Part Context

This part belongs to the LTC4269-1 series from Analog Devices, specialized for PoE applications. It integrates classification, protection, and control functions typically requiring multiple discrete components. The series targets high-efficiency power delivery in network infrastructure equipment.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer resources for cross-reference information or updated product lifecycle status.