Analysis

White LEDs double brightness from compact package

22nd June 2007
ES Admin
0
Toshiba Electronics Europe has launched a high efficiency white LED that provides double the brightness of previous devices in the same form factor. Supplied in a standard, compact package, the new TLWK1100B LED delivers typical luminous intensity levels of 1500mcd from a drive current of only 20mA.
The Toshiba TLWK1100B is supplied in a standard PLCC2 surface mount package which measures just 3.2mm x 2.9mm x 1.9mm. Potential applications for the new device include panel indication, LCD backlighting and the replacement of incandescent bulbs in certain lighting applications. A robust design and an operating temperature range of -40°C to 100°C also make the TLWK1100B ideal for automotive lighting designs.
The new LED has employed a combination of a blue InGaN LED and yellow-emitting phosphor to provide the high brightness white light output. The device offers efficient operation with maximum power dissipation of just 114mW, and typical forward voltage (VF) is 3.2V.


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