rainyday101
New Member
Hi, New here, been out of the electronics field for a bit and need some help with a circuit. I need to build a battery monitoring circuit that will monitor two AA cells and light a LED when the voltage for these cells is low. I guess that trip point to be around 2.1 to 2.4 Vdc. I have searched the internet and found voltage monitoring IC's etc. by Panasonic and ON Semiconductor, but none are readily available. These also have 3000 part min. qty. orders. I did manage to get some samples from ON Semi for a NCP301LSN22T1G voltage detector. They are microscopic and I will never be able to solder any thing to them! Can I use a comparator circuit? LM393? Any help would be appreciated!