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UCC2817, UCC2818, UCC3817, UCC3818
SLUS395K – FEBRUARY 2000 – REVISED OCTOBER 2015
UCC2817, UCC2818, UCC3817 and UCC3818 Bi
CMOS Power Factor Pregulator
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 • Up to 18-V Operation • Frequency Range 6 kHz to 220 kHz
2 Applications
• PC Power • Consumer El...