UCC2819A Datasheet (Texas Instruments) - Power Factor Preregulator

UCC2819A, Power Factor Preregulator

The UCC2819A/UCC3819A 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,

UCC2819A Features

* D Controls Boost Preregulator to Near-Unity Power Factor D World Wide Line Operation D Over-Voltage Protection D Accurate Power Limiting D Average Current Mode Control D Improved Noise Immunity D Improved Feed-Forward Line Regulation D Leading Edge Modulation D 150-µA Typical Start-Up Current D Low-