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UCC2818 Datasheet BiCMOS Power Factor Pregulator

Manufacturer: Texas Instruments

Download the UCC2818 datasheet PDF. This datasheet also includes the UCC2817 variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (UCC2817-etcTI.pdf) that lists specifications for multiple related part numbers.

General Description

The UCCx817 and UCCx818 family provides all the functions necessary for active power factor-corrected preregulators.

The controller achieves near-unity power factor by shaping the AC input line current waveform to correspond to that of the AC input line voltage.

Average current mode control maintains stable, low distortion sinusoidal line current.

Overview

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community UCC2817, UCC2818, UCC3817, UCC3818 SLUS395K – FEBRUARY 2000 – REVISED OCTOBER 2015 UCC2817, UCC2818, UCC3817 and UCC3818 BiCMOS Power.

Key Features

  • 1 Controls Boost Preregulator to Near-Unity Power Factor.
  • Limits Line Distortion.
  • World Wide Line Operation.
  • Over-Voltage Protection.
  • Accurate Power Limiting.
  • Average Current Mode Control.
  • Improved Noise Immunity.
  • Improved Feed-Forward Line Regulation.
  • Leading Edge Modulation.
  • 150-μA Typical Start-Up Current.
  • Low-Power BiCMOS Operation.
  • Up to 18-V Operation.
  • Frequency Range 6 kHz.

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