Published:2011/7/11 23:33:00 Author:Michel | Keyword: White LED Circuit | From:SeekIC
When the series white LED are driven,the LED can get homogeneous brightness because the flowing current is equal.The defect of driving voltage is that driving voltage is the sum of each LED postive voltage.The driver's ouput voltage amplitude should satisfy the series LED driving voltage.This series configuration needs to use inductive boost switch converter, in order to obtain high efficiency when it's high voltage.When we choose this type of converter,LX pins rated output voltage should be taken into consideration.
The table gives a few rated voltage of inductive boost switch converter Lx pins and drivable series white LED numbers.
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