MP9989 Diode

MPS' CCM/DCM flyback ideal diode with integrated 100 V/10 mΩ MOSFET and no need for auxiliary winding

Image of MPS' MP9989 Diode Monolithic Power Systems' MP9989 is a fast turn-off, intelligent rectifier for flyback converters that integrates a 100 V MOSFET that can replace a diode rectifier for higher efficiency and power density. The device regulates the forward voltage drop of the internal power switch to 40 mV and turns off before the drain-source voltage reverses. The MP9989 can generate its own supply voltage without the need for auxiliary winding, which makes it suitable for charger applications with a low output voltage requirement or any other adapter applications with high-side set-up. The internal ringing detection circuitry prevents the MP9989 from falsely turning on during discontinuous conduction mode (DCM) or quasi-resonant operations and is available in SOIC-8 and QFN4x5-8 packages.

Features
  • Integrated 100 V/10 mΩ MOSFET
  • Wide output range down to 0 V
  • No need for auxiliary winding for high-side or low-side rectification
  • Ringing detection prevents false turn-on during DCM operations
  • Compatible with Energy Star
  • 110 µA quiescent current
  • Supports DCM, CCM, and quasi-resonant operations
  • Available in SOIC-8 and QFN4x5-8 packages

Applications

  • Laptop adapters
  • QC and USB PD chargers
  • High-efficiency flyback converters

MP9989 Diodes

ImageManufacturer Part NumberDescriptionMounting TypePackage / CaseAvailable QuantityPriceView Details
CCM/DCM FLYBACK IDEAL DIODE WITHMP9989GV-PCCM/DCM FLYBACK IDEAL DIODE WITHSurface Mount8-PowerVDFN174 - Immediate$50.86View Details
CCM/DCM FLYBACK IDEAL DIODE WITHMP9989GS-ZCCM/DCM FLYBACK IDEAL DIODE WITHSurface Mount8-SOIC (0.154", 3.90mm Width)2219 - Immediate$46.03View Details
CCM/DCM FLYBACK IDEAL DIODE WITHMP9989GV-ZCCM/DCM FLYBACK IDEAL DIODE WITHSurface Mount8-PowerVDFN3342 - Immediate$47.04View Details
CCM/DCM FLYBACK IDEAL DIODE WITHMP9989GS-PCCM/DCM FLYBACK IDEAL DIODE WITHSurface Mount8-SOIC (0.154", 3.90mm Width)480 - Immediate$49.85View Details

Eval Boards

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
EVAL BOARD FOR MP9989EV9989-S-00AEVAL BOARD FOR MP99891 - Immediate$262.43View Details
EVAL BOARD FOR MP9989EV9989-V-00AEVAL BOARD FOR MP99890 - Immediate$262.43View Details
Published: 2020-12-11