MP8001ADS-LF-P

Overview

The MP8001ADS-LF-P is a Powered Device (PD) controller compliant with the IEEE 802.3af standard for Power over Ethernet applications. It integrates a detection and classification mechanism alongside a high-voltage switch rated at 100V. The device features a maximum on-resistance of 1.2 Ohms and supports an operating supply voltage of 48 V. It provides a current limit of 810 mA, which exceeds the baseline MP8001 specification. The component operates within a temperature range of -40°C to +85°C and consumes a typical supply current of 240 uA.

Feature Summary

• Integrates a 100V withstand voltage DMOS switch for direct PoE interface connection
• Includes built-in thermal protection and temperature-compensated current limiting
• Provides surge current limiting to allow slow charging of input capacitors without interruption
• Features an open-drain power good output indicator for system status monitoring

Applications

• IEEE 802.3af compliant Powered Devices
• PoE-enabled network infrastructure equipment
• LAN-powered electronic systems requiring PD control

Procurement Notes

Verify the specific suffix 'P' against official Monolithic Power Systems documentation to confirm packaging configuration, as datasheets may reference 'Z' or other variants. Ensure compatibility with required reel quantities and moisture sensitivity levels before ordering. Cross-reference the exact part number with manufacturer catalogs to confirm current production status and lead times.

Selection Notes

Select this component when designing systems requiring higher current capacity than the standard MP8001 variant. The integrated switch eliminates external MOSFET requirements, simplifying board layout. Consider the SOIC-8 package constraints and thermal dissipation capabilities relative to the 1.2 Ohm on-resistance during peak load conditions.

Part Context

This part belongs to the MP8001 series of PoE controllers from Monolithic Power Systems. It serves as a specialized variant offering enhanced current handling compared to the base MP8001 model. The series is designed to meet strict IEEE 802.3af specifications for reliable power delivery over Ethernet cabling.

Replacement Considerations

The MP8001ADS-LF-Z is a confirmed substitute part number within the same family, differing primarily in packaging format.