www.fairchildsemi.com ? 2011 fairchild semiconductor corporation www.fairchildsemi.com rev. 1.0.2 ? 4/20/12 AN-7730 fl7730 design tool flow overview this document is intended to provide in-depth guidance to using the fairchild design tool for fl7730. use the design tool with the product datasheet. figure 1. design flow
AN-7730 application note ? 2011 fairchild semiconductor corp oration www.fairchildsemi.com rev. 1.0.2 ? 4/20/12 2 step 1 ? enter input output specification step 2 ? transformer design step 3 ? snubber design
AN-7730 application note ? 2011 fairchild semiconductor corporation www.fairchildsemi.com rev. 1.0.2 ? 4/20/12 3 step 4 ? control circuit design step 5 ? power device design
AN-7730 application note ? 2011 fairchild semiconductor corporation www.fairchildsemi.com rev. 1.0.2 ? 4/20/12 4 step 6 ? dim detection circuit design step 7 ? passive bleeder design
AN-7730 application note ? 2011 fairchild semiconductor corporation www.fairchildsemi.com rev. 1.0.2 ? 4/20/12 5 step 8 ? active damper design
AN-7730 application note ? 2011 fairchild semiconductor corporation www.fairchildsemi.com rev. 1.0.2 ? 4/20/12 6 related resources locate the design tool at: http://www.fairchildsemi.com/desi gn_tools/led-driver-design-tool/ consult the product datasheet at: fl7730 ? dimmable single-stage pfc psr offline led driver follow us on twitter at: twitter.com/fairchildsemi view product and company videos, listen to podcasts, and comment on our blog at: www.fairchildsemi.com/engineeringconnections visit us on facebook at: www.facebook.com/fairchildsemiconductor disclaimer fairchild semiconductor reserves the right to make changes without further notice to any products herein to improve reliability, function, or design. fairchild does not assume any liability arising out of the application or use of any product or circuit described he rein; neither does it convey any license under its patent rights, nor the rights of others. life support policy fairchild?s products are not authorized for use as criti cal components in life support devices or systems without the express written approval of the preside nt of fairchild semiconductor corporation. as used herein: 1. life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. 2. a critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
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