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L6564H - High voltage startup transition-mode PFC

Description

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Features

  • Onboard 700 V startup source.
  • Fast “bi-directional” input voltage feedforward (1/V2 correction).
  • Accurate adjustable output overvoltage protection.
  • Protection against feedback loop disconnection (latched shutdown).
  • Inductor saturation protection.
  • AC brownout detection.
  • Low (≤100 µA) startup current.
  • 6 mA max. operating bias current.
  • 1% (@ TJ = 25 °C) internal reference voltage.
  • -600/+800 mA totem pole gate driver with active pull-down during UVL.

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Full PDF Text Transcription

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L6564H High voltage startup transition-mode PFC Features ■ Onboard 700 V startup source ■ Fast “bi-directional” input voltage feedforward (1/V2 correction) ■ Accurate adjustable output overvoltage protection ■ Protection against feedback loop disconnection (latched shutdown) ■ Inductor saturation protection ■ AC brownout detection ■ Low (≤100 µA) startup current ■ 6 mA max. operating bias current ■ 1% (@ TJ = 25 °C) internal reference voltage ■ -600/+800 mA totem pole gate driver with active pull-down during UVLO ■ SO-14 package Figure 1. Block diagram Datasheet − production data SO-14 Application ■ PFC pre-regulators for: – High-end AC-DC adapter/charger – IEC61000-3-2 or JEITA-MITI compliant SMPS, in excess of 400 W – SMPS for LED luminaires ZCD HVS Vcc PFC_OK 0.23 V 0.27 V 6 2.
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