https://community.nxp.com/t5/Power-Management/Application-note-for-implementing-TEA1721AT-in-design/m-p/1982066#M3843 <P>I need to build a fly-back converter with 2 isolated outputs and with an input range of 19 - 150Vdc. It also needs to have a VERY no-load consumption.</P><P>I was therefore looking at the TEA1721 family.</P><P>Is there a tool or application note that can help me with this design?</P> Fri, 25 Oct 2024 13:28:21 GMT tkoha 2024-10-25T13:28:21Z https://community.nxp.com/t5/Power-Management/Application-note-for-implementing-TEA1721AT-in-design/m-p/1982066#M3843 <P>I need to build a fly-back converter with 2 isolated outputs and with an input range of 19 - 150Vdc. It also needs to have a VERY no-load consumption.</P><P>I was therefore looking at the TEA1721 family.</P><P>Is there a tool or application note that can help me with this design?</P> Fri, 25 Oct 2024 13:28:21 GMT https://community.nxp.com/t5/Power-Management/Application-note-for-implementing-TEA1721AT-in-design/m-p/1982066#M3843 tkoha 2024-10-25T13:28:21Z https://community.nxp.com/t5/Power-Management/Application-note-for-implementing-TEA1721AT-in-design/m-p/1982544#M3844 <P><SPAN>Hi</SPAN></P> <P><SPAN>That's not easy for design this&nbsp; by use one stage power solution because the input range is more special.</SPAN></P> <P><SPAN>You can use one stage BOOST to improve input voltage into 150V or above,then second stage use the normal fly-back or QR FLYBACK controller to get the isolation solution.</SPAN></P> <P><SPAN>You can calculate by following attached calculate sheet. for QR FLY-BACK&nbsp; topology.</SPAN></P> <P><SPAN>Hope this could help！</SPAN></P> <P>&nbsp;</P> Mon, 28 Oct 2024 01:52:57 GMT https://community.nxp.com/t5/Power-Management/Application-note-for-implementing-TEA1721AT-in-design/m-p/1982544#M3844 guoweisun 2024-10-28T01:52:57Z