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Automotive high brightness LED control based on the MC9S08MP16 microcontroller

Posted: 21 May 2010 ?? ?Print Version ?Bookmark and Share

Keywords:MC9S08MP16 microcontroller? LED control? high brightness LED?

This application note describes the implementation of a lighting control for high-brightness LED strings based on the MC9S08MP16 family of microcontrollers and a low-cost discrete solution. The embedded closed-loop control algorithm that is implemented ensures the optimal flow of current through the high-brightness LED strings, maximizing their life and avoiding undesirable visual blemishes.

The microcontroller implements a closed-loop PID control, along with some features required for automotive lighting applications including dimming, indicating overtemperature, and open-load protections. The right combination of high performance, ADCs, FlexTimer module and connectivity make the MC9S08MP16 the ideal solution for this application.

View the PDF document for more information.

Click here to view related datasheets.

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