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UCC2818A-Q1 - BiCMOS Power-Factor Preregulator

General Description

The UCC2818A-Q1 device 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.

Key Features

  • 1 Qualified for Automotive.

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community UCC2818A-Q1 SLUSA21A – FEBRUARY 2010 – REVISED DECEMBER 2014 UCC2818A-Q1 BiCMOS Power-Factor Preregulator 1 Features •1 Qualified for Automotive Applications • Controls Boost Preregulator to Near-Unity Power Factor • Limits Line Distortion • World-Wide Line Operation • Overvoltage 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 • 12-V to 17-V Operation • Frequency Range of 6 kHz to 220 kHz 2 Applications • Automotive 3 Description The UCC2818A-Q1 device provides all the functions necessary for active power factor corrected prer