Electronic – Resistor values on schematic

schematics

I'm at best a hobbyist EE and could use some help reading a schematic. I'm trying to test a chip (TI BQ76920) I found that will read the voltages from a multiple cell (1-5 cells in series) Lipo battery that can be accessed via I2C. I have plenty of practice with reading device registries from breakout PCBs but bread-boarding from a bare IC is new to me.

Anyway I have a schematic from the datasheet and it has values for some of the resistors and capacitors but not all. I highlighted the values in the image. There are 6 resistors called Rc on the left, next to them are 6 caps named Cc, on the bottom left toward the middle is a resistor called Rsns, then at the top to the right is a resistor called Rf and below that is a cap called Cf. Not sure what these are or how to calculate what they should be. Are these standard values that show up a lot and I should know what they mean? Any and all help is much appreciated.

Here is the schematic in question:

Ti bq769x0 schematic pg. 41

Best Answer

If you want to evaluate the IC I would start by ordering their eval board first. This will save you the trouble of designing your own board to work with that particular IC. You can then tweak it to get the performance you are after.

In the user guide it shows this circuit. Pg 36 here.

Here you can see they used 100Ω and 1u for Rc and Cc respectively. You can also see what they chose for the other values you were curious about. To figure out how to tweak these values to fit your needs will require reading all of the documentation. EE life isn't all glamor.

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