Voltage and current characteristics of high brightness white LED.
High Bright (HB) white LEDs offer significant advantages of space saving, power saving, and long life over CFTs and other filament lights. However the LED light output is very sensitive to the input voltage and current. This demands highly regulated voltage and current to be fed to white LED to derive optimal light output from white LEDs. White LEDs released in year 2008 have significant improvement in light output and other electrical characteristics. Here in this short article the behavior of latest white LED for varying voltage and current are analyzed and you have a choice to choose the brightest LED. At these very initial stages of white LED innovation, power designer has to be wiser in selecting right component.
The forward voltage, Forward Current, and Max Light output are compared and analyzed in this below table. Its kind of reference selection guide for LED lamp/lighting design.
Below are the links to download the datasheet of these above mentioned parts:
Vishay's VLMW63
vlmw63.pdf
Toshiba's TL12W02
TL12W02
Panasonic's LNJ090W3GRA
Philips Lumileds LXHL-PW09
American Bright BL-PPW-TS6-AHJ-1
BL-PPW-TS6-AHJ
Bridgelux BXRA LED series
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