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HVLED007 - Transition mode PFC controller

Description

converters operated in transition mode (aka quasi-resonant operation).

Features

  • Transition-mode (quasi-resonant) control of flyback PFC pre-regulators.
  • Proprietary input current shaper for minimum THD of line current.
  • Control input for isolated feedback and optocoupler driving.
  • Output overvoltage protection.
  • Overload and short-circuit protection.
  • Low (≤ 60 μA) start-up current and low (≤ 4 ma) quiescent current.
  • Digital leading-edge blanking on current sense.
  • -600/+800 mA totem pole gate driver with UVLO pull-down and voltage clamp.

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Full PDF Text Transcription

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HVLED007 Transition mode PFC controller for flyback converters Features  Transition-mode (quasi-resonant) control of flyback PFC pre-regulators  Proprietary input current shaper for minimum THD of line current  Control input for isolated feedback and optocoupler driving  Output overvoltage protection  Overload and short-circuit protection  Low (≤ 60 μA) start-up current and low (≤ 4 ma) quiescent current  Digital leading-edge blanking on current sense  -600/+800 mA totem pole gate driver with UVLO pull-down and voltage clamp  SO8 package Applications Flyback PFC converters for:  AC-DC LED drivers for domestic, commercial and industrial lighting  Street lighting  EN61000-3-2 compliant SMPS Description The HVLED007 is a current-mode PFC controller specific for isolated high pow
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