where to start: design IC similar to TI bq2084V143

[gdivella]

Hi everybody and thank you very much in advance to the ones who'll answer to my question.

I'm trying to realize an electronic scheme with discrete parts that does, synthetically, the following:

Battery cells (connected in sequence) balancing
Voltage, Temperature, Current measuring
Over/Under Voltage/current protection
Thermal protection
Communication of all measurements with a microcontroller (ex. Cortex M3 via serial port)
Most of the topic's expert know that TI provides an interesting IC that makes all these things (bq2084), but... where should i start from if my aim is to create my custom version with the functionalities listed above?

Again, thanks in advance

giuseppe

 

[schmitt trigger]

The best approach is to read the datasheets and application notes very thoroughly.
Then purchase a demo board (if available) and start playing with it, making measurements, reading waveforms, sending simple commands.

"Discovering" how a new component works, is the very best part of design engineering.

Then, after you have mastered the device, you may decide whether it makes sense to actually design your own.