BQ76940: Design Help

Hi,

We have a customer with below concern:

We are using two evaluation boards of TI on this project and i would need assistance on the module connections.

1. We are trying to build the bench using the TI Boards at hand, with the fashion given in this diagram(see attached file).

We want to connect the battery cells to BQ76952 using it as a AFE and then connect this board to BQ76940 (which has a fuel gauge chip) and send State-of-Charge information to laboratory PC using our EV2400 adapter. I have looked into the application notes offered for both boards although I am still not quite sure how to achieve this kind of connection between the boards.

2. We might also work with BQ76952EVM out of the picture. That means only with BQ76940EVM, if it's possible to connect it to EV2400 via I2C instead of SMBus while utilizing its Gauge feature. But i think the user guide for BQ76940EVM mentions using SMBus and SMBus only for the Gauge feature.

So a secondary question would be whether if it is possible to connect BQ76940EVM to EV2400 via I2C while utilizing the gauge function

Regards,

RolandTI Diagram.pdf