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SRK2000A - Synchronous rectifier smart driver

Description

The SRK2000A smart driver implements a control scheme specific to 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 rectifier controller optimized for LLC resonant converters.
  • Protection against current reversal.
  • Safe management of load transient, light load and startup condition.
  • Matched turn-off thresholds.
  • Intelligent automatic sleep mode at light load.
  • Dual gate driver for N-channel MOSFETs with 1 A source and 3.5 A sink drive current.
  • Operating voltage range 4.5 to 32 V.
  • Programmable UVLO with hysteresis.
  • 250 µA quiescent consumptio.

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Full PDF Text Transcription

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SRK2000A Synchronous rectifier smart driver for LLC resonant converters SO-8 Features  Secondary side synchronous rectifier controller optimized for LLC resonant converters  Protection against current reversal  Safe management of load transient, light load and startup condition  Matched turn-off thresholds  Intelligent automatic sleep mode at light load  Dual gate driver for N-channel MOSFETs with 1 A source and 3.5 A sink drive current  Operating voltage range 4.
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