MP8001ADS-LF-Z

Overview

The MP8001ADS-LF-Z is an IEEE 802.3af compliant Powered Device (PD) controller designed for Power over Ethernet applications. It integrates a 100V rated DMOS switch with a maximum on-resistance of 1.2 Ohms and supports a working supply voltage of 48 V. The device features a current limit of 810 mA, ensuring higher capacity than the standard MP8001 variant. It operates within a temperature range of -40°C to +85°C and consumes 240 uA of operating power. The component delivers up to 15 W of output power and is housed in an SOIC-8 surface-mount package.

Feature Summary

• Complies with IEEE 802.3af specifications for detection and classification modes
• Integrates a high-voltage DMOS switch with thermal protection against transient and overload conditions
• Includes surge current limiting to safely charge input capacitors without chip overheating
• Provides open-drain power good output indication

Applications

• IEEE 802.3af Powered Device implementations
• Power over Ethernet LAN infrastructure components
• Network endpoint devices requiring integrated PD control

Procurement Notes

Verify the specific suffix 'ADS' confirms the 810 mA current limit characteristic distinct from other variants. Confirm RoHS compliance status through official documentation. Ensure moisture sensitivity handling protocols are followed during assembly due to declared humidity sensitivity. Validate that the SOIC-8 package dimensions match the design footprint requirements.

Selection Notes

Select this component when an 802.3af PD controller with an 810 mA current limit is required. It serves as an upgrade path from the MP8001, offering increased current capacity while maintaining compatibility with standard PoE detection and classification sequences. Consider the 1.2 Ohm on-resistance and 100V switch rating for appropriate load and voltage headroom calculations.

Part Context

This part belongs to the MP8001 series of PoE controllers manufactured by Monolithic Power Systems. It functions specifically as a Powered Device controller rather than a Power Sourcing Equipment controller. The series provides integrated solutions for managing power delivery over Ethernet cables, combining switching capabilities with protocol compliance logic in a single IC.

Replacement Considerations

The MP8001ADS-LF-P is a listed alternative packaging option for the same functional device. No other direct substitute part numbers are confirmed in the provided documentation.