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Functions of TEA1738 flyback controller

Posted: 28 Dec 2010     Print Version  Bookmark and Share

Keywords:TEA1738  GreenChip  fixed-frequency flyback controller 

The TEA1738 is a member of NXP Semiconductors' GreenChip family. It is a fixed-frequency flyback controller intended for power supplies up to 75 W for applications such as notebooks, printers and LCD monitors.

This application note describes the functionality of the TEA1738 series. Fixed-frequency flyback fundamentals and calculation of transformer and other large signal parts are not dealt with in this application note.

The TEA1738FT version is intended for applications with a separate standby power supply such as LCD television. In this case, the TEA1738FT obtains its VCC supply directly from a separate standby supply. If the available voltage is lower than the 20.6 V starting voltage of the TEA1738T, the solution is to use TEA1738FT with a start-up voltage of only 13 V.

View the PDF document for more information.





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