A17DD Driver does not switch modes

[finges]

@RMM

@finges

Shouldn’t you be using a 4.7v zener diode? Try and build a board without the zener for single cell use, does this work?

4.3v is fine, as is 5.1v. The problem is that the board layout doesn’t work well with the zener diode. You need to put the 10uF capacitor in parallel with the zener diode. Unsolder it from the current location and solder it to the zener pads then stack the zener onto the capacitor.

I thought this is solved in v044?

If not, try it like posted here.