MP8008GV-P

Overview

The MP8008GV-P is a fully integrated IEEE 802.3af/at-compliant Power over Ethernet (PoE) Powered Device (PD) interface and power converter by Monolithic Power Systems. It combines a PD interface with a peak current mode flyback controller in a QFN-28 package. The device supports a wide operating input voltage range of 12V to 57V and delivers up to 25W output power. Key electrical specifications include an 840mA working current limit, a maximum on-resistance of 480mOhms, and a maximum duty cycle of 95%. It operates within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates full IEEE 802.3af/at PD interface functions including detection, classification, and surge current limiting.
• Incorporates a peak current mode flyback PWM controller capable of driving external MOSFETs for high-performance applications.
• Features adjustable switching frequency from 30kHz to 400kHz with synchronous frequency support.
• Includes comprehensive protection mechanisms such as overload, short circuit, overvoltage, and overtemperature protection.

Applications

• High-performance PoE powered devices requiring integrated front-end solutions
• Network infrastructure equipment compliant with IEEE 802.3af/at standards
• Applications utilizing auxiliary adapter ring powering

Procurement Notes

Verify the specific suffix 'P' indicates the reel packaging configuration when ordering. Confirm that the QFN-28 package dimensions match your PCB footprint requirements. Ensure compatibility with the 12V to 57V input voltage range for your specific PoE source. Check humidity sensitivity handling procedures during assembly as indicated in the datasheet. Validate that the 840mA current limit aligns with your downstream load requirements.

Selection Notes

Select this component for designs needing a compact, single-chip solution for PoE PD interfaces. It is suitable for applications requiring efficient power conversion with minimal external components. Consider the 480mOhms on-resistance for thermal management in dense layouts. The adjustable frequency allows optimization for EMI and efficiency trade-offs. Ensure the 25W output capability meets the system's power budget.

Part Context

The MP8008GV-P belongs to the MP8008 series of fully integrated PoE controllers. It is designed to simplify the implementation of IEEE 802.3af/at compliant devices by combining the PD interface and power conversion stages. This integration reduces the bill of materials and board space compared to discrete solutions. The QFN-28 package facilitates surface-mount assembly in space-constrained environments.

Replacement Considerations

The MP8008GV-Z is listed as a variant within the same product family. Verify if the suffix change denotes a packaging difference or minor parameter variation before substitution. Consult the official datasheet to confirm pin-to-pin compatibility and functional equivalence.

FAQ

What is the maximum operating input voltage for the MP8008GV-P?

The device supports an operating supply voltage range from 12V to 57V.

Does the MP8008GV-P support IEEE 802.3at standards?

Yes, it is fully compatible with both IEEE 802.3af and 802.3at standards.

What type of package does the MP8008GV-P use?

It is available in a QFN-28 package with dimensions of 4mm x 5mm.