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AAT2833/34 Eval: 240mA total display solution for portable devices

Posted: 05 May 2008 ?? ?Print Version ?Bookmark and Share

Keywords:display solution? portable devices? WLED driver? AAT2833 application note? AnalogicTech?

AnalogicTech's AAT2833/34 is a total solution IC for portable display applications. Based on a tri-mode charge pump power engine, it is capable of delivering 240mA of output current for white LED backlight and RGB applications. The high conversion efficiency and high level of integration make the AAT2833/34 an optimal solution for battery life and size-critical applications. AnalogicTech�s AS?Cwire (Advanced Simple Serial Control) serial digital interface is used to enable, disable and set current levels for all of the LEDs. Each backlight channel can be programmed to 16 levels of current, from a recommended maximum of 30mA programmed by the BSET pin resistor. The RGB module can be adjusted to 8 levels of current, up to a recommended maximum of 60mA. The RGB module is programmable with up to 4096 (AAT2833) or 64 (AAT2834) color/intensity (brightness) combinations. The AAT2833/34 is offered in a Pb-free, thermally enhanced 24-pin 4mm x 4mm x 0.9mm QFN package.

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