UC3841: Application note for UC3841

Hello Arumugam,

The schematic references and old Unitrode application note U-114.  I tried to see if I could find this first through TI’s web site and then google.  I happened to have an old Unitrode application book from 1997.  This application book does not even have this application note.  The publications go from U-113 to U-115 skipping U-114.  I have never seen this application note and also do not believe it is available.

I went to the TI reference design center to see if I could find UCC2/3841 offline 15V power converters.   I did not find a reference design using the UCC2/3841 however, I found the following reference designs with the following outputs. http://www.ti.com/general/docs/refdesignsearchresults.tsp   Maybe one of these will work in your application.

Offline 15V Designs.pdf

Regards,

Mike