MP8005DF-LF-P

Overview

The MP8005DF-LF-P is a Powered Device (PD) interface and PWM controller compliant with the IEEE 802.3af standard, designed for Power over Ethernet applications. It supports a maximum output power of 13 W and operates within an input voltage range of 0 V to 57 V. The device features a maximum on-resistance of 1.2 Ohms and includes current limiting set at 400 mA. It functions reliably across an operating temperature range from -40°C to +85°C and utilizes a TSSOP-20 surface-mount package.

Feature Summary

• Complies with IEEE 802.3af standards for Powered Device classification
• Integrates PD interface logic with PWM control capabilities
• Supports high-voltage operation up to 57 V for PoE applications

Applications

• Power over Ethernet Powered Devices
• LAN interface power management circuits
• Network equipment requiring 802.3af compliance

Procurement Notes

Verify the specific suffix against official Monolithic Power Systems documentation to confirm pinout and electrical characteristics, as variations exist between LF-Z and LF-P designations. Ensure compatibility with your system's thermal requirements given the TSSOP-20 package constraints. Confirm RoHS status through the manufacturer's latest datasheet before finalizing procurement specifications.

Selection Notes

Select this component when designing systems requiring strict adherence to IEEE 802.3af protocols for Powered Devices. The integrated PWM controller simplifies design by combining interface detection with power regulation. Consider the 1.2 Ohm on-resistance impact on efficiency and the 400 mA current limit when sizing external components for your specific load requirements.

Part Context

This part belongs to the MP8005 series of power switch ICs specialized for LAN and PoE applications. It serves as a critical interface between the Ethernet line and the local power supply, managing power negotiation and delivery according to established networking standards.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.