BQ76952: High Side DSG NFET Custom driver reference

Hello,

We are currently working on a reference design that provides a high-side FET stacking design for the BQ76952 device.  This reference design will be out very soon, so please keep an eye on the BQ76952 product page on TI.com: BQ76952 data sheet, product information and support | TI.com.

If you are willing to use low-side FETs, the following technical article should have more information: (+) How to stack battery monitors for high-cell-count industrial applications - Power management - Technical articles - TI E2E support forums.

 Additionally, this application note discusses how to implement low-side FETs with the BQ76952: Using Low-Side FETs with the BQ769x2 Battery Monitor Family (Rev. A) (ti.com).

Best,

Andria

Hi Andria, thanks for the prompt reply.

Can you please provide some insight on how the high side DSG NFET is being driven in the upcoming schematic.

Hello,

Unfortunately, driving the high-side FETs with the stacking configuration is the most difficult aspect of the design.  Because the reference design is not officially released, I am not yet able to share the details.  

The reference design should be out very soon, however.

Best,

Andria