LTC9101AUF-3#TRPBF

Overview

The LTC9101AUF-3#TRPBF is a Power Sourcing Equipment (PSE) controller designed for 802.3bt PoE applications, supporting up to 90W output power. It operates within a supply voltage range of 51V to 57V and features a maximum on-resistance of 30mΩ. The device integrates a single channel with a maximum duty cycle of 6.7% and consumes 11mA of operating current. It functions reliably across an extended temperature range from -40°C to +85°C and is housed in a QFN-24 surface-mount package.

Feature Summary

• Integrated PSE controller compliant with IEEE 802.3bt standards for high-power PoE applications
• Includes internal power switch with low on-resistance for efficient power delivery
• Supports Class 8 operation with integrated protection mechanisms
• Compact QFN-24 package suitable for space-constrained designs

Applications

• High-power PoE switches and hubs
• Access points requiring 802.3bt compliance
• Industrial networking equipment
• Outdoor wireless access points

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout and electrical characteristics match your design requirements. Confirm availability status as distribution channels may list limited stock or obsolete status. Ensure the QFN-24 thermal pad soldering process aligns with your manufacturing capabilities for reliable performance.

Selection Notes

Select this component when designing systems requiring IEEE 802.3bt Class 8 power delivery up to 90W. Consider the QFN-24 package for thermal management and board space efficiency. Verify input voltage compatibility with your 51V-57V supply rails. Evaluate the 11mA quiescent current impact on overall system efficiency during standby modes.

Part Context

This part belongs to the LTC9101 family of PoE controllers from Analog Devices. It is specifically engineered for 802.3bt Type 4 PSE applications. The device simplifies design by integrating control logic and power switching, reducing external component count compared to discrete solutions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Analog Devices technical support for direct replacements or verify if other members of the LTC9101 family meet your specific voltage and power requirements.