MP8008LGV-P

Overview

The MP8008LGV-P is a fully integrated IEEE 802.3af/at compatible Power over Ethernet (PoE) Powered Device (PD) interface with an internal peak-current-mode flyback controller. It features a 100V, 0.48-ohm PD integrated switch, 120mA surge current limit, and 840mA operating current limit. The device supports auxiliary adapter operation and includes a 12V, 1A flyback MOSFET gate driver. It operates within a supply voltage range of 12V to 57V, delivering up to 25W output power. The adjustable switching frequency ranges from 30kHz to 400kHz, with synchronous frequency functionality available.

Feature Summary

• Integrates full IEEE 802.3af/at PD interface functions including detection, classification, and thermal protection.
• Combines PD interface with a peak-current-mode flyback PWM controller for high-performance applications.
• Includes light-load skip mode to improve efficiency under low power conditions.
• Provides comprehensive protection against overload, short circuit, overvoltage, and overtemperature.

Applications

• High-performance PoE powered devices
• IP cameras and video surveillance systems
• Wireless access points
• VoIP phones

Procurement Notes

Verify the specific suffix 'LGV' against the manufacturer's official documentation to confirm exact electrical characteristics and package variations. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the component is suitable for new designs as availability may vary by region or distributor.

Selection Notes

Select this component for designs requiring a compact solution that integrates both PoE PD logic and power conversion. The QFN-28 package minimizes board space. Consider the 840mA current limit when sizing downstream components. Verify compatibility with Type-2 PSE signaling if higher power budgets are required.

Part Context

This part belongs to the MP8008 series from Monolithic Power Systems, designed specifically for PoE applications. It consolidates multiple discrete components into a single IC, reducing bill of materials and complexity. The series supports various packaging options to suit different thermal and spatial constraints in network infrastructure equipment.

Replacement Considerations

Check MPS datasheets for direct pin-to-pin replacements within the MP8008 family. Verify functional equivalence regarding PD interface standards and flyback controller capabilities before substitution.