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IRS27951S - RESONANT HALF-BRIDGE CONVERTER CONTROLLER

Description

The IRS2795(1,2)(4) is a self oscillating half-bridge driver IC for DC-DC resonant converter applications, especially the LLC resonant half-bridge converter.

The frequency and dead time can be programmed externally using two external components.

Features

  • Simple primary-side control solution for fixed and variable frequency DC-DC resonant converters.
  • Max 500kHz per channel output with 50% duty cycle.
  • Floating channel bootstrap operation up to +600Vdc.
  • Programmable minimum and maximum switching frequency.
  • Programmable soft start frequency and soft start time.
  • Programmable dead time.
  • Micropower start-up & ultra low quiescent current.
  • Over-current protection using low side MOSFET Rds(on).
  • User initiated.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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IRS27951S IRS27952(4)S RESONANT HALF-BRIDGE CONVERTER CONTROL IC Features  Simple primary-side control solution for fixed and variable frequency DC-DC resonant converters.  Max 500kHz per channel output with 50% duty cycle  Floating channel bootstrap operation up to +600Vdc  Programmable minimum and maximum switching frequency  Programmable soft start frequency and soft start time  Programmable dead time  Micropower start-up & ultra low quiescent current  Over-current protection using low side MOSFET Rds(on)  User initiated micropower “Sleep mode”  Under-voltage Lockout  Simple design with minimal component count.
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