Motherboad to display schematic

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Motherboad to display schematic

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konstantin_alfi
Contributor I

Please tell me how to connect this display to the motherboard? For lighting, I think you need to use a chip MC34844. Do the signals from the pinch Bl_power (2..5),  Brightness (8), Bklt_en (9) control the backlight? In the datasheet, I did not find any electrical characteristics anywhere...
The backlight requires a constant current. Adjusting the brightness of PWM mc34844 will provide a constant current output?

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reyes
NXP TechSupport
NXP TechSupport

Hi,

Please share more information about this motherboard. It does not seem to be a board designed by NXP, in such case, for support, you would need to contact the board designer directly.

 

NXP currently have the KIT34844AEPEVBE Evaluation board supporting the MC34844 LED driver which can be connected to the KITLEDBKLT16EVBE: Evaluation KIT-16 Ch LED driver board (256 LEDs), you can find the details of these boards including the user guide for the MC34844 Evaluation board in the following links:

 

KIT34844AEPEVBE Evaluation board: https://www.nxp.com/products/power-management/lighting-driver-and-controller-ics/led-drivers/evaluat...

 

KITLEDBKLT16EVBE Evaluation KIT-16 Ch LED driver board: https://www.nxp.com/support/developer-resources/evaluation-and-development-boards/analog-toolbox/eva...


Have a great day,
Jose

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