MP6922A

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High Efficient, Dual Fast Turn-off Intelligent Rectifier, Vfwd 30mV for LLC


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Product Description

The MP6922A is a dual, fast-turn?ff, intelligent rectifier for synchronous rectification in LLC resonant converters. The IC drives two N-channel MOSFETs and regulates their forward voltage drop to about 30mV and turns it off before the switching current goes negative. MP6922A has a light-load function to latch off the gate driver under light-load conditions, thus limiting the current to below 600?. The MP6922A? fast turn-off enables both continuous-conduction mode and discontinuous-conduction mode. An internal reverse-current protection function ensures safe MOSFET operation under high-frequency continuous-current conditions. MP6922A requires a minimal number of readily-available standard external components and is available in SOIC8E, SOIC8, and SOIC14 packages.

Product Features

  • Works with Both Standard and Logic-Level MOSFETs
  • Compatible with Energy Star? 0.5W Standby Requirements
  • VDD Range from 8V to 24V
  • Fast Turn-Off Total Delay of 20ns
  • Reverse-Current?rotection Function
  • Maximum Switching Frequency of 300kHz
  • <600? Quiescent Current in Light-Load Mode
  • Supports CCM, CrCM and DCM Operation
  • Available in SOIC8E, SOIC8, and SOIC14 packages

Parametrics

  • Ishutdown (µA)300
  • Vin (min) (V)8
  • Vin (max) (V)24
  • Iq (mA)0.5
  • Iop (mA)16
  • Drain Rating180
  • Turn-Off Delay (ns)35
  • VCC (min) (V)6
  • Turn-On Delay (ns)150
  • Turn-On Threshold (mV)30
  • Min On Time (ns)1000
  • VCC (typ) (V)15
  • Pout (max) (W)400
  • fsw (max) (kHz)up to 300
  • VCC (max) (V)27
  • TypeController
  • GradeCatalog
  • Light-Load FunctionYes
  • Power Range DefinedNo