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HFC0511GS Description

The HFC0511 is a fixed-frequency, currentmode controller with internal slope pensation specifically designed for medium-power, offline, flyback, switch-mode power supplies. The HFC0511 is a highly efficient green-mode controller. At light loads, the controller freezes the peak current and reduces its switching frequency down to 27kHz to achieve excellent light-load efficiency.

HFC0511GS Key Features

  • Fixed-Frequency, Current-Mode Control with Internal Slope pensation
  • Frequency Foldback down to 27kHz at Light Load
  • Burst Mode for Low Standby Power Consumption, Meeting EuP Lot 6
  • Frequency Jitter to Reduce EMI Signature
  • X-Cap Discharge Function
  • Adjustable Over-Power pensation
  • Internal High-Voltage Current Source
  • Brown-Out Protection on HV
  • Overload Protection with Programmable
  • Latch-Off for External Over-Voltage