It's just a guess based on you description, so if it's a inrush (starting) current problem, a larger discharged capacitor will draw more current when charging. But could be something else like a backflow current:gmx, that makes sense about the resistor, but does that mean a resistor in my circuit would help (notwithstanding the above about the diode)?
And in relation to "a capacitor can make it worse"; why?
In this case, it's the same, a larger charged capacitor will create more backflow, just stick to the diode (or a FET as a diode).Awkwardly, I found the same solution but forgot to post it here Image may be NSFW.
Clik here to view.A diode on the power line was the solution. For some reason. There was a backflow of current from the DRV on the TPL5110 to VSYS pin on the Pico that got it stuck in an eternal boot loop… A simple power diode (even if it means a voltage drop of 0.7V on a battery powered project…) was my solution.
Statistics: Posted by gmx — Mon Jan 20, 2025 12:32 am
