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Design guide

         Brightest white LED in market: Analysis of brightness, V & I characteristics of HB LEDs

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.

Company Part Number Forward Voltage Max Forward Current Max Light output
Vishay VLMW63 2.9 to 4.3 V 150 mA 11 lumens @ If =140 mA
Toshiba TL12W02-D(T30) 6.3 to 7.9 V 300 mA 90 lumen @ If = 250 mA
Panasonic LNJ090W3GRA 3.0 V to 3.6 V 750 mA 80 lumen @ If = 750 mA
Luxeon (Philips Lumileds) LXHL-PW09 3.03 V to 4.47 V 1 Amp 80 lumen @ If = 1 A
American Bright Opto-electronics BL-PPW-TS6-AHJ-1 3.6 to 4.0V 350 mA 52 lumen @If = 350 mA
Cree XLamp XM-L 2.9 V to 3.5 v 3000 mA 260 lumen @ If= 700 mA
Bridgelux BXRA-W400 9.0 V to 10.6 1500 mA 440 @ If = 900 mA

 

Below are the links to download the datasheet of these above mentioned parts:

Vishay's VLMW63
http://www.vishay.com/docs/81922/vlmw63.pdf

Toshiba's TL12W02

http://www.semicon.toshiba.co.jp/docs/datasheet/en/Opto/TL12W02-D(T30)_en_datasheet_080714.pdf

Panasonic's LNJ090W3GRA

http://www.twinhill.com.tw/pdf/LNJ090W3GRA.pdf

Philips Lumileds LXHL-PW09

http://www.philipslumileds.com/pdfs/DS45.pdf

American Bright BL-PPW-TS6-AHJ-1
http://solidstate-lighting.com/pdffiles/Highpower/BL-PPW-TS6-AHJ-1.pdf

Cree XLamp:

Bridgelux BXRA LED series

http://bridgelux.com/assets/products_portfolio/BridgeluxLEDArray_DataSheet.pdf

 

To get updated on latest news on LEDs check our EE Herald Opto components page:

http://www.eeherald.com/component/opto/index.html

 

 


 

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