MP8004 DC-DC Converter

By Monolithic Power Systems 175

MP8004 DC-DC Converter

MPS' 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 100 V output pass device. An inrush current limit is included to charge the input capacitor slowly without interruption due to die heating.

The DC/DC converter includes a 150 V power switch and is capable of delivering 13 W PoE power with high efficiency. It has an internal soft start and auto-retry. Also, it incorporates over-current, short-circuit, and over-voltage protection. It can also skip cycles to maintain zero load regulation.

The MP8004 supports a front-end solution for PoE-PD application with minimal external components and is available in a thermally enhanced 4 mm x 6 mm QFN-20 package.

Features
  • Meets IEEE 802.3af specifications
  • 100 V, 1 Ω integrated pass switch
  • 420 mA DC input current limit
  • 150 V, 0.45 Ω integrated switch for power converter
  • Integrated 100 V start-up circuit
  • Cycle-by-cycle switching current limit
  • Programmable switching frequency
  • Duty cycle limiting with line feed forward
  • Internal slope compensation
  • OCP, SCP, and OTP
Applications
  • VoIP telephones
  • Security camera systems
  • Wireless access points / wireless LAN
  • Small-cell base stations
  • Safety backup power
  • Remote internet power

New Products:

MP8004GQW-P

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