Guru
Joined: 05/03/2018
Location: NetherlandsPosts: 5531
| Posted: 08:14am 09 Oct 2025 |
Hi Grogster,
Yes, I have this running. I was afraid of side effects (the rightmost mosfet is used as an analog comparator with limited gain, so the RUN pin would experience a slow ramp (not a sharp edge). I needed to make sure the pico would behave nicely (reset reliable) on this slow ramp. So I tested it for several hours before publishing the schematics. Used BSS123 for the 2N7002's since these where available. The SOT23's look so tiny compared to the .25W through hole resistors and the tantalum capacitor.
Regards,
Volhout
Edited 2025-10-09 18:21 by Volhout