Cree has launched an interactive LED design tool for characterising and translating nominal LED performance figures on the data sheet.

The online tool allows users to easily characterise Cree’s XLamp LEDs over a wide range of operating conditions, including drive current, flux bin, price and junction temperature. It also calculates metrics such as lumen output, lumens per watt, lumens per dollar and more.

Called the Product Characterization Tool (PCT), it can be used to perform simple LED system design based on a target total lumen output, calculating parameters such as number of LEDs required and total system efficacy.

The calculated system parameters take into account electrical, optical and thermal losses associated with LED system performance. In addition, PCT allows users to compare up to three different XLamp LED configurations at once, empowering customers to best choose between the industry-leading XLamp XR, MC and XP package families.

More information: www.cree.com/pct