PD81101ILQ-TR-LE

Overview

The PD81101ILQ-TR-LE is a Power Sourcing Equipment (PSE) controller manufactured by Microchip Technology. It supports IEEE 802.3at (PoE+) standards for single-port applications. The device operates within a supply voltage range of 3V to 57V and functions reliably across an industrial temperature range of -40°C to +85°C. It is housed in a 56-pin VQFN package and is designed for integration into PoE-powered network infrastructure.

Feature Summary

• Supports IEEE 802.3at PoE+ standards for single-port power sourcing
• Integrated PSE manager with high-voltage operation capabilities
• Industrial temperature rating for robust environmental performance

Applications

• Single-port PoE+ midspan injectors
• Power sourcing equipment in network switches
• Industrial IoT power distribution nodes

Procurement Notes

Verify component status as the PD81101ILQ-TR-LE is listed as End-of-Life (EOL). Confirm availability through authorized distributors or secondary markets, noting potential supply restrictions. Ensure compatibility with existing design specifications before procurement due to discontinuation status.

Selection Notes

Select this component for single-channel PoE+ applications requiring integrated management. Consider the VQFN-56 package constraints and thermal requirements. Evaluate alternative active parts if long-term supply stability is critical, given the EOL designation.

Part Context

This part belongs to Microchip's PD81101 family of PoE controllers. It serves as a specialized solution for powering remote devices over Ethernet cables while managing power classification and fault protection according to IEEE standards.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the End-of-Life status, engineers should consult Microchip for recommended obsolescence alternatives or redesign using currently active PoE controller families.