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 hereA 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.
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