First post, so I hope that I adhere well to all the rules.
I couldn't find any other posts that could help me, so here's my problem:
I am trying to build a simple transistor switch with a 3906 PNP transistor. The end-goal of this project is to design a circuit that illuminates one of 5 different LED's to indicate the charge of a Li-Ion battery cell.
I'm starting with the Red LED which should illuminate at ~3.3V but it illuminates at ~4.8V.
My 3906 datasheet says that the minimum base current is 50 nA, so I assembled the circuit below to generate 50 nA @ 1.6V on the base when the input reaches 3.3V. I assume the issue is that I'm biasing it badly. (I am trying to get my head around transistor theory and failing, me thinks).