3 ms·
And if you don't have this, I posted this circuit example I just made for a delayed power turn on time above. Capacitor is about 5 cents, the transistors are ab
by neltnerb 7y ago
And if you don't have this, I posted this circuit example I just made for a delayed power turn on time above. Capacitor is about 5 cents, the transistors are about 6 cents each. If you need it you need it, but power good to the reset line is better.
https://i.postimg.cc/Df9N8fM5/delayed-turn-on-circuit.png https://i.postimg.cc/Df9N8fM5/delayed-turn-on-circuit.png
Or just put a capacitor after the reset line pullup so that it effects delayed turn on during boot.
- leggomylibro 7y agoOh, neat trick - thanks for sharing!
- Tempest1981 7y agoWhat is the voltage drop across D1 and Q2? Is that ever an issue?
- neltnerb 7y agoThe drop across D1 can be significant, using a Schottky helps. Usually within the tolerance of the power supply in any case. But a capacitor on the reset pin is pretty good ;-)