BQ76952EVM: Chaining multiple EVMs

Vadim Lebedev

Part Number: BQ76952EVM
Other Parts Discussed in Thread: TIDA-010247,

Tool/software:

Hello, we're in process of designing BMS pretty similar to TIDA-010247.
Our BMS will have 2 BQ769272 ICs to handle up to 32 cells.
We're in early stages of the design en we're using BQ76952EVM develop the software meanwhile.
I wonder if somebody could advice me on hooking 2 BQ76952EVM to achieve setup similar to TIDA-010247 with
High side BQ IC and Low side BQ IC.

10 months ago

+1 Alexis_H 10 months ago

TI__Genius 17795 points

Hello Vadim,

Unfortunately, we do not have any application notes or know of previous users who have tried to use hook two EVMs to achieve a similar setup to the TIDA010247 design. It may be easier instead to use TIDA-010247's design files and make your changes from there. If you do plan on trying to hook 2 EVMs together, you will need to do some external level shifting.

Some application notes that may be useful to reference for stacking our part include: Design Considerations of Stacked BQ769x2 with High-Side N-MOSFETs and How to Stack Battery Monitors for High-Cell-Count Industrial Applications.

Best Regards,
Alexis

0 Vadim Lebedev 9 months ago in reply to Alexis_H

Prodigy 160 points

Hi Alexis,

Thank you for the pointers

Power management

Power management forum

BQ76952EVM: Chaining multiple EVMs