Download HFC0500 Datasheet PDF
HFC0500 page 2
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HFC0500 Description

HFC0500 is a fixed-frequency current-mode controller with internal slope pensation. It is specifically designed for the medium-power, offline, flyback, switch-mode power supplies. HFC0500 is a green-mode highly efficient controller.

HFC0500 Key Features

  • Fixed-frequency current-mode control with internal slope pensation
  • Frequency foldback down to 25kHz at light loads
  • Burst mode for low standby power consumption, meeting EuP Lot 6
  • Frequency jitter to reduce EMI signature
  • X-cap discharge function
  • Adjustable overpower pensation
  • Internal high-voltage current source
  • VCC under-voltage lockout with hysteresis
  • Brown-out protection on HV
  • Overload protection with programmable

HFC0500 Applications

  • FIXED-FREQUENCY FLYBACK CONTROLLER WITH ULTRA-LOW NO LOAD POWER CONSUMPTION