SI34061-A-GMR

Overview

The SI34061-A-GMR is a Power over Ethernet (PoE) Powered Device interface controller compliant with IEEE 802.3at standards, designed for 25.5W applications. It integrates a DC-DC converter and operates within a supply voltage range of 2.7 V to 57 V. The device features a maximum duty cycle of 75% and draws a typical operating current of 3 mA. It supports a current limit of 10.5 mA and functions reliably across an extended temperature range from -40°C to +85°C. Housed in a QFN-24 package, it facilitates efficient power delivery for LAN infrastructure.

Feature Summary

• Integrates PoE PD interface with internal DC-DC conversion for simplified system design
• Compliant with IEEE 802.3at standards for reliable powered device operation
• Supports wide input voltage range suitable for various PoE network environments

Applications

• IEEE 802.3at Powered Device implementations
• LAN infrastructure power distribution systems
• Network equipment requiring integrated power switching and regulation

Procurement Notes

Verify the specific suffix 'GMR' corresponds to the reel packaging configuration as indicated by distributor listings. Confirm RoHS compliance status through official Skyworks documentation prior to integration. Ensure the QFN-24 footprint matches the target PCB layout requirements. Validate that the 2.7 V to 57 V operating range aligns with the specific PoE class expectations of the end application.

Selection Notes

Select this component when designing IEEE 802.3at compliant devices requiring integrated power management. The inclusion of a DC-DC converter reduces external component count compared to discrete solutions. Consider the QFN-24 package size for space-constrained designs. Verify thermal performance within the specified -40°C to +85°C operational envelope for industrial or commercial deployments.

Part Context

This part belongs to the Si3406x series of power switch ICs manufactured by Skyworks Solutions. It is categorized under Power Switch ICs for PoE/LAN applications. The series focuses on providing integrated solutions for powered devices in network infrastructure, combining interface logic with power conversion capabilities in a compact form factor.

Replacement Considerations

Check Skyworks documentation for direct pin-compatible alternatives within the Si3406x family. Verify if other variants offer different packaging options such as tray versus reel while maintaining identical electrical specifications.