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L6599A - Improved high-voltage resonant controller

Description

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Features

  • 50% duty cycle, variable frequency control of resonant half bridge.
  • High-accuracy oscillator.
  • Up to 500 kHz operating frequency.
  • Two-level OCP: frequency-shift and latched shutdown.
  • Interface with PFC controller.
  • Latched disable input.
  • Burst mode operation at light load.
  • Input for power-ON/OFF sequencing or brownout protection.
  • Non-linear soft-start for monotonic output voltage rise.
  • 600 V-rail compatible high-side gate driver with integrated bo.

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Full PDF Text Transcription

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L6599A Improved high-voltage resonant controller Features ■ 50% duty cycle, variable frequency control of resonant half bridge ■ High-accuracy oscillator ■ Up to 500 kHz operating frequency ■ Two-level OCP: frequency-shift and latched shutdown ■ Interface with PFC controller ■ Latched disable input ■ Burst mode operation at light load ■ Input for power-ON/OFF sequencing or brownout protection ■ Non-linear soft-start for monotonic output voltage rise ■ 600 V-rail compatible high-side gate driver with integrated bootstrap diode and high dv/dt immunity ■ -300/800 mA high-side and low-side gate drivers with UVLO pull-down ■ DIP16, SO16N package Applications ■ LCD and PDP TV ■ Desktop PC, entry-level server ■ Telecom SMPS ■ High efficiency industrial SMPS ■ AC-DC adapter, open frame SMPS Tab
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