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Optoelectronics/Displays??

Demo board for LM3448 based flyback LED driver

Posted: 20 Jan 2012 ?? ?Print Version ?Bookmark and Share

Keywords:flyback LED driver? forward current?

This demonstration board by Texas Instruments highlights the performance of a LM3448 based flyback LED driver solution. This driver can be used to power a single LED string consisting of seven to eleven series connected LEDs from a 85 VRMS to 135 VRMS, 60Hz input power supply. This is a two-layer board using the bottom and top layer for component placement. The demonstration board can be modified to adjust the LED forward current, the number of series connected LEDs that are driven and the switching frequency. A schematic and layout have also been included along with measured performance characteristics. A bill of materials is also included that describes the parts used on this demonstration board.

View the PDF document for more information.

Originally published by Texas Instruments at www.ti.com as "LM3448 -120VAC, 6W Isolated Flyback LED Driver".





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