Hi guys
I came up with the following design, the idea is, to minimum current consumption when the power is on, and discharge the cap (C1) seasonal fast when the power is off.
The cap will be discharge to about ~1V in 0.5s, and continue to be discharge by the 100K(R3) to 0V over time.
The R4 is the internal resistance of two CR2032. the M1 is just a random PMOSFET I picked from LTSpice.
The simulation in LTSpice looks fine, but is there anything else I need to worry about in practice?
I came up with the following design, the idea is, to minimum current consumption when the power is on, and discharge the cap (C1) seasonal fast when the power is off.
The cap will be discharge to about ~1V in 0.5s, and continue to be discharge by the 100K(R3) to 0V over time.
The R4 is the internal resistance of two CR2032. the M1 is just a random PMOSFET I picked from LTSpice.
The simulation in LTSpice looks fine, but is there anything else I need to worry about in practice?