MIC9130BM

Overview

The MIC9130BM is a Power Over Ethernet (PoE) Powered Device (PD) controller designed for IEEE 802.3af compliance. It integrates a DC-DC converter to step down the PoE input voltage range of 36V to 57V to a regulated 3.3V output. The device supports an output current of up to 2.5A with typical efficiency reaching 80%. It features integrated protection mechanisms including over-voltage, under-voltage, and thermal shutdown to ensure reliable operation in network infrastructure applications.

Feature Summary

• IEEE 802.3af compliant power delivery architecture
• Integrated high-efficiency DC-DC conversion stage
• Comprehensive fault protection and monitoring capabilities

Applications

• Ethernet routers
• Ethernet switches
• Network interface cards

Procurement Notes

Verify the specific suffix 'BM' against the manufacturer's official datasheet to confirm package type and temperature grade. Ensure the component meets the required IEEE 802.3af standard for your specific application. Cross-reference the ordering information with the original manufacturer documentation to avoid counterfeit parts.

Selection Notes

Select this component when designing systems requiring standardized PoE power reception. Consider the 3.3V output requirement and 2.5A current capability. Evaluate the thermal performance within the chosen enclosure. Verify compatibility with upstream PoE PSE equipment regarding power classification protocols.

Part Context

This part belongs to Microchip's PoE Powered Device controller family. It serves as a critical interface between the Ethernet physical layer and the system load, providing isolated or non-isolated power conversion. It complements other Microchip networking solutions by handling the power acquisition and regulation tasks efficiently.

Replacement Considerations

Consult the manufacturer's obsolescence notices for direct substitutes. Generic PoE controllers may differ in pinout or protocol support. Verify electrical parameters match exactly before substitution.