Hello everyone,
I designing a circuit are battery powered and I would put a push button to turn on / turn off battery, to avoid discharge without use.
My supply is between 3.4V .. 4.2V (when batterys are fully charged).
I thinked to use the IC LMC555 (because its minimum supply is 1.5V) to toggle output (when press a simple push button), and the are works perfectly in simulation, see:
However, I need to use either MOSFET or RELAY to turn on / off the supply of circuit and i'm doubt about which select. Anyone has an idea? With mosfets, the circuit a little bit, and with relay need the coil supports 3.4 ... 4.2V.
Thnks