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MP8007H

Fully Integrated, 802.3af-Compatible PoE PD Interface with 13W Primary-Side Regulated Flyback or Buck Converter

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Description

The MP8007H is an integrated, IEEE 802.3af-compatible, PoE-powered device with a PD interface and power converter. It is targeted for isolated or non-isolated 13W PoE applications.

The PD interface has all the functions of IEEE 802.3af, including detection, classification, 120mA inrush current, 840mA operation current limit, and a 100V hot-swap MOSFET.

The DC/DC converter uses fixed peak current and variable frequency discontinuous conduction mode (DCM) to regulate a constant output voltage. The primary-side regulation without optocoupler feedback in flyback mode simplifies the design. Buck mode minimizes the solution size for non-isolated applications. A 180V integrated power MOSFET optimizes the device for various wide-voltage applications.

The device’s protection features include over-current protection, over-voltage protection, open-circuit protection and thermal shutdown.

The MP8007H can support a front-end solution for PoE-PD applications with minimal external components. It is available in a QFN-28 (4mmx5mm) package.

Features & Benefits

Compatible with 802.3af Specifications
Supports 13W PoE Power Applications
300KHz Maximum Switching Frequency
100V 0.48Ω PD Integrated Pass Switch
120mA PD Inrush Current
840mA PD Operation Current Limit
Auxiliary Adapter ORing Power Supply
Integrated 180V Switching Power MOSFET
Supports Primary-Side Regulated Flyback without Optocoupler Feedback
Supports Low-Side Switch Buck Converter
Up to 3A Programmable Switching Current Limit
OLP, OVP, Open-Circuit, and Thermal Protection
Minimal External Components
Available in a QFN-28 (4mmx5mm) Package

Evaluation Tools

EV8007H-V-00A Evaluation Kit IEEE 802.3af PoE PD Interface with 13W Primary-Side Regulated Flyback Converter Evaluation Board

The EV8007H-V-00A evaluation board is designed to demonstrate the capability of the MP8007H’s primary-side regulated flyback function. This board supports IEEE 802.3af PoE compliant powered devices (PDs) with a PD interface and flyback power converter. It is targeted for isolated, 13W PoE application.

The PD interface has all the functions of IEEE 802.3af, including detection, classification, inrush current, operation current, and a 100V hot-swap MOSFET. The DC/DC converter uses a fixed peak current and variable frequency discontinuous conduction mode (DCM) to regulate constant output voltage.

The MP8007H is available in a QFN-28 (4mmx5mm) package.

$25.00
+ tax

Design Resources

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