Hello!
I have ordered a sample of BQ2084-V150, because I have to make a remote controller with a microcontroller powered by a battery, and I wish to measure the fuel gauge in my 10Ah Li-Po Battery ( One Cell - 3.7-4.2V ), and decide whether to use this one, or another one, only 1.3Ah with my remote.
I've looked on the datasheet before the order, and it seemed to me that I can use it without the BQ29312A IC, but now when I am designing the PCB layout, I look again and have a few doubts.
The facts:
I just want to see the capacity in my battery something like the bq2048 does: when I press a button ( the DISP pin on the 2048 ) I want to see how many LEDs are on/off. This I want to do with my microcontroller. Send a signal on the DISP pin, and then read the signals on the LEDx pins of the 2048. But can I do this without the bq29123A ? I don't seem to find any schematics or application notes regarding that ( i don't have a bq29123A yet, and I don't wish to order and then not to use it ).
If I can, can you tell me where to put the input on it ( my battery BAT+ and BAT- ), and what other components to use ?
Thanks
Adrian-Ioan Lita
University POLITEHNICA of Bucharest