low cost 20mA LED driver Posted by: markbar on 05/08/2013 Hi looking to design a low power LED driver constant current 20mA up to 150Vdc any device or design recomendations? As always cost is a big issue. Regards Mark 评论 Hi, Attached is the simplest driver you can use: http://www.powerint.com/sites/default/files/PDFFiles/der92.pdf You can replace the input rectifier to full bridge so that the effect of line input frequency will be negligible. For tighter CC you can use the sample in table 2 of this data sheet. http://www.powerint.com/sites/default/files/product-docs/lnk302_304-306.pdf This is the cheapest and simplest you can utilize. Regards....
Hi, Attached is the simplest driver you can use: http://www.powerint.com/sites/default/files/PDFFiles/der92.pdf You can replace the input rectifier to full bridge so that the effect of line input frequency will be negligible. For tighter CC you can use the sample in table 2 of this data sheet. http://www.powerint.com/sites/default/files/product-docs/lnk302_304-306.pdf This is the cheapest and simplest you can utilize. Regards....
Hi,
Attached is the simplest driver you can use:
http://www.powerint.com/sites/default/files/PDFFiles/der92.pdf
You can replace the input rectifier to full bridge so that the effect of line input frequency will be negligible.
For tighter CC you can use the sample in table 2 of this data sheet.
http://www.powerint.com/sites/default/files/product-docs/lnk302_304-306.pdf
This is the cheapest and simplest you can utilize.
Regards....