P-ch Simple auto-off ckt uses few components

@clementereyes

8 years ago

https://everycircuit.com/circuit/6350055247446016

equation: T=−R1C1loge(3/VBAT) Time delay is in seconds. https://www.edn.com/design/power-management/4390934/Simple-automatic-shutoff-circuit-uses-few-components