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Under rated Capacitor for current Backlight drive in RT1050-EVK

Question asked by Carol Desjardins on Mar 25, 2019
Latest reply on Mar 25, 2019 by Wigros Sun

hardwareissue 

Is your IMXRT1050-EVKB has broken when you plugged LCD on J8?

Mine yes, because the capacitor C88 is rated only 6.3V. It's a bad design. The design should support at least 25V in this case. The Backlight dc/dc converter can boot the BL+ voltage up to 24V when open circuit or during normal operating.

Brief, you must change this capacitor for at least 25V, I suggest 35V in this case.

 

 

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