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Do you know bias power of any totem pole PFC controller?

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Flyback

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Hi,
You cant search for totem pole PFC controllers on digikey etc.
Also, their datasheets cannot be found.
Eg, the NCP1680 datasheet cannot be found...you have to write off for it.
Does anyone know the bias power draw of the controller?...or of any totem pole PFC controller?
 
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