MP8004

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13W Power Over Ethernet (PoE) Powered Device (PD) Interface with Flyback DC-DC Converter


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Product Description

The MP8004 is an integrated IEEE 802.3af PoE compliant Powered Device (PD) power supply solution. It includes a PD interface and an isolated/non-isolated flyback converter. The PD interface includes detection and classification modes as well as a 100V output pass device. Inrush current limit is included to slowly charge the input capacitor without interruption due to die heating. The DC-DC converter includes a 150V power switch and is capable of delivering 13W PoE power with high efficiency. It has an internal soft-start, auto-retry, and incorporates over current, short circuit, and over voltage protection. It can also skip cycles to maintain zero load regulation. The MP8004 can support a front-end solution for PoE-PD application with minimum external components, and is available in thermally enhanced 4x6mm QFN20 package.

Product Features

  • Meets IEEE 802.3af Specifications
  • 100V, 1Ω Integrated Pass Switch
  • 420mA DC Input Current Limit
  • 150V, 0.45Ω Integrated Switch for Power Converter
  • Cycle-by-Cycle Switching Current Limit
  • Integrated 100V Startup Circuit
  • Programmable Switching Frequency
  • Duty Cycle Limiting with Line Feed Forward
  • Internal Slope Compensation
  • OCP, SCP and OTP Protection
  • 4x6mm QFN20 Package

Parametrics

  • GradeCatalog
  • Max Duty Cycle (%)60
  • PoE Standards Supported802.3af
  • PoE Ilimit (mA)420
  • PoE Inrush Limit (mA)150
  • DC/DC Integrated Switch Rds(on) (Ω)0.45
  • Pout (W)13
  • Pass Switch Rds(on) (Ω)1
  • PackageQFN-20 (4x6)
  • DC/DC TopologyFlyback
  • DC/DC Controller or ConverterConverter
  • fsw (kHz)Programmble, 55 - 500

Evaluation Kit

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Kit details

The MP8004 is an integrated IEEE 802.3af PoE compliantPowered Device (PD) power supply solution. It includes a PD interface and an isolated/non-isolated flyback converter.

The PD interface includes detection and classification modes as well as a 100V output pass device. Inrush current limit is included to slowly charge the input capacitor.

The DC-DC converter includes a 150V power switch and is capable of delivering 13W output power with high efficiency. It has an internal soft-start, auto-retry, over current, short circuit, and over voltage protection. It can also skip cycles during light load condition.

The MP8004 is available in thermally enhanced 4x6mm QFN20 package.

$25.00 + tax