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Partname:UCC28503DWTR
Description:BiCMOS PFC/PWM Combination Controller
Manufacturer:Texas Instruments
Datasheet:PDF (580K).
Click here to download *)

The UCC2850x family provides all of the control functions necessary for an active power-factorcorrected preregulator and a second-stage dc-to- dc converter. The controller achieves near-unity power factor by shaping the ac input line current waveform to correspond to the ac input-line voltage using average current-mode control. The dc-to-dc converter uses peak current-mode control to perform the step-down power conversion.

Click here to download UCC28503DWTR Datasheet
Click here to download UCC28503DWTR Datasheet
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