While high power LEDs need complex driver schemes, the vast majority of applications use LEDs with currents below 500 mA and can be driven by linear constant-current LED drivers. These are easy-to-use, reliable, cost efficient, and do not affect EMC. This article gives a short overview on the design and power considerations necessary to use constant-current LED drivers in practical applications.
Constant current source for interior LED lighting
Highly efficient and compact, LEDs have become the de-facto choice for interior lighting applications, from cluster backlighting to mood lighting. However, LEDs are sensitive to operating current so, for any single or string system, a constant steady state current is vital. That’s why constant current source devices make the ideal solution for driving LEDs in the electrically noisy environment of vehicles. Our space-saving NCR series complements the efficiency of LEDs perfectly with accurate and stable outputs.