All I need is a circuit that, when 12V is applied, passes 12V at about 0.25A to a miniature bulb, then after about 5 seconds, cuts power to the load and only resets at the next power down/power up cycle.
It is an automotive requirement; I need a dash bulb to light when the vehicle is started, then extinguish after about five seconds.
Obviously a 555 timer springs to mind but the circuits I have seen so far assume a mechanical reset button.
Am I missing the obvious?
Regards,
Simon
It is an automotive requirement; I need a dash bulb to light when the vehicle is started, then extinguish after about five seconds.
Obviously a 555 timer springs to mind but the circuits I have seen so far assume a mechanical reset button.
Am I missing the obvious?
Regards,
Simon