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SRK2001 - Adaptive synchronous rectification controller

Description

The SRK2001 controller implements a control scheme specific for secondary side synchronous rectification in LLC resonant converters that use a transformer with center tap secondary winding for full wave rectification.

Features

  • Secondary side synchronous rectification controller optimized for LLC resonant converter.
  • Dual gate driver for N-channel MOSFET.
  • Adaptive turn-off logic.
  • Turn-on logic with adaptive masking time.
  • Auto-compensation of parasitic inductance.
  • Low consumption mode: 50 μA quiescent current.
  • VCC operating voltage range 4.5 V to 32 V.
  • High voltage drain-to-source Kelvin sensing for each SR MOSFET.
  • 35 ns total delay at turn.

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Full PDF Text Transcription

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SRK2001 Datasheet Adaptive synchronous rectification controller for LLC resonant converter Features • Secondary side synchronous rectification controller optimized for LLC resonant converter • Dual gate driver for N-channel MOSFET • Adaptive turn-off logic • Turn-on logic with adaptive masking time • Auto-compensation of parasitic inductance • Low consumption mode: 50 μA quiescent current • VCC operating voltage range 4.
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