Hi, I’m designing a circuit where the battery is directly connected to the components, the thing is the components can take a range up to 4.2v but not under 3.3v, so I need a circuit that will check wether or not the battery is under 3.3v and stop it if it is. The issue is that I need to do it without an external power supply, no boost or buck converter. Do you have an idea?
Hello @thesurvivingteam
Welcome to the TechForum
We do have some Power Supply Controllers, Monitors | Power Management (PMIC) | Electronic Components Distributor DigiKey that might do what you are looking for.
I do remember talking to someone about finding a real time clock that has the ability to monitor its battery, but for the life of me I cannot remember what chip it was that I had found that could do that. Real Time Clocks | Clock/Timing | Electronic Components Distributor DigiKey
Maybe someone else will has an idea, but this is all I could think of.
So it measures the artery has been draining or the actual voltage?
I figured since manufacturers do it with battery protection ICs with under voltage protection, I should be able to do the same