LM5072MHX-50

Overview

The LM5072MHX-50/NOPB is a Power Over Ethernet (PoE) Powered Device (PD) controller compliant with the IEEE 802.3at (PoE+) standard. It integrates a high-voltage interface for classification and power detection, alongside a PWM controller for downstream DC/DC conversion. The device supports an input voltage range of 9V to 70V and operates within a junction temperature range of -40°C to 125°C. It is housed in a 16-pin HTSSOP package.

Feature Summary

• Integrates a 100V-rated PD interface for direct connection to PoE sources without external level shifting.
• Supports auxiliary power delivery to enable simultaneous data and higher-power auxiliary channel operation.
• Includes built-in protection mechanisms against overvoltage, undervoltage, and thermal overload conditions.

Applications

• IEEE 802.3at compliant network endpoints requiring up to 25.5W power consumption
• Wireless access points and IP cameras utilizing auxiliary power channels
• Industrial IoT gateways operating in extended temperature environments

Procurement Notes

Verify the suffix 'NOPB' indicates lead-free and RoHS compliance. Confirm the '-50' designation aligns with specific supply chain requirements or internal part numbering conventions distinct from the '-80' variant. Ensure the HTSSOP package width matches the PCB footprint design specifications before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring IEEE 802.3at PoE+ compliance with integrated auxiliary power support. It is suitable for applications needing a single-chip solution for both PD interface management and downstream voltage regulation. Consider the 16-pin HTSSOP package constraints during layout planning.

Part Context

This component belongs to the LM5072 family of integrated PoE controllers. It serves as a complete solution for Powered Devices, combining the interface logic with a pulse-width modulation controller. The family includes variants such as the LM5072MH-80/NOPB, which may differ in specific electrical characteristics or packaging options while maintaining core functionality.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Texas Instruments official resources for current cross-reference information or equivalent components within the same product family.