MP6909

New

Fast Turn-Off Intelligent Rectifier with Turn On Slew Rate Detection



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Product Description

The MP6909 is a low-drop diode emulator IC that, when combined with an external switch, replaces Schottky diodes in high-efficiency flyback converters. The MP6909 regulates the forward drop of an external synchronous rectifier (SR) MOSFET to about 40mV, which switches off once the voltage becomes negative.

The MP6909 can generate its own supply voltage via an internal linear regulator. Programmable ringing detection circuitry prevents the MP6909 from turning on falsely at VDS oscillations during discontinuous conduction mode (DCM) and quasi-resonant operation.

The MP6909 is available in a space-saving TSOT23-6 package.

Product Features

  • Supplied Voltage Internally Regulated
  • Ringing Detection Prevents False Turn-On during DCM and Quasi-Resonant Operations
  • Works with Standard and Logic Level SR MOSFETs
  • Compatible with Energy Star
  • ~30ns Fast Turn-Off and Turn-On Delay
  • ~100µA Quiescent Current
  • Supports DCM, CCM, and Quasi-Resonant Operations
  • Supports both High-Side and Low-Side Rectification
  • Available in a TSOT23-6 Package

Parametrics

  • fsw (max) (kHz)400
  • Iq (mA)0.105
  • Iop (mA)2.9/1.72
  • VDD (min) (V)4
  • VDD (max) (V)13
  • Pout (max) (W)150
  • PackageTSOT23-6
  • TypeController
  • Light-Load FunctionNo
  • Power Range Defined

Evaluation Kit

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Kit details

The MP6909 is a low-drop diode emulator IC that, when combined with an external switch, replaces Schottky diodes in high-efficiency flyback converters. The MP6909 regulates the forward drop of an external synchronous rectifier (SR) MOSFET to about 40mV, which switches off once the voltage becomes negative.

The MP6909 can generate its own supply voltage by internal linear regulator. Programmable ringing detection circuitry prevents the MP6909 from turning on falsely at VDS oscillations during discontinuous conduction mode (DCM) and quasi-resonant operation.

EV6909-S-00A is the evaluation board for MP6909.

US$ 25.00 + tax