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[Solved] Witty Pi 4 DC/DC Converter Failure

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I just got a Witty Pi 4 to power a Pi installed in a vehicle. I wired it up to the vehicle power (~ 12.8V to 14V depending on running).


It worked great for a few days and then failed. It looks like the MP4462 is kind of cooked. I can still power the witty from the USB connection but the XH2.54 is dead.


My understanding is the Witty Pi 4 should handle up to 30V on the XH2.54? Am I doing something incorrect or is this just random hardware failure?



Posted : 08/03/2024 9:43 pm
Posts: 268
Member Admin

MP4462 can actually handle up to 36V. The only possibility in my mind is you reversed the input voltage polarity.

Posted : 09/03/2024 8:49 am
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