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).
Please forgive me for this terrible MS paint schematic done with a laptop mousepad.