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UCC2817A, UCC2818A, UCC3817A, UCC3818A
SLUS577D – NOVEMBER 2011 – REVISED AUGUST 2016
UCCx81xA Bi
CMOS Power Factor Preregulator
1 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 Bi
CMOS Operation • 12-V to 17-V Operation • Frequency Range of 6 kHz to 220 kHz
2 Applications
• PC Power • Consumer Electronics • Lighting...