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AOZ7111 Datasheet Critical Conduction Mode Pfc Controller

Manufacturer: Alpha & Omega Semiconductors

Overview: AOZ7111 Critical Conduction Mode PFC Controller General.

General Description

The AOZ7111 is an active power factor correction (PFC) controller for boost PFC applications that operate in critical conduction mode (CRM).

The device uses a voltage mode PWM which does not need rectified AC line voltage information, it saves the power loss of an input sensing network necessary for traditional currentmode CRM PFC controller.

The AOZ7111 minimizes the number of external ponents by integrating safety

Key Features

  • that make it an excellent choice for designing robust PFC stages. The AOZ7111 is available in a SO-8 package and it is rated over a -40°C to +125°C ambient temperature range. Features.
  • No AC input voltage sensing requirement.
  • AC Fault Detect™ makes system more robust.
  • Maximum switching frequency limitation.
  • Additional OVP detection pin.
  • Output over-voltage / open-feedback protection and disable function.
  • Internal closed loop soft-start.
  • Dynamic OVP function.

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AOZ7111 Distributor