BQ76930: Design an 8-series battery pack using BQ76930, with two batteries connected in series for use

user6501051

Part Number: BQ76930
Other Parts Discussed in Thread: TIDA-00449, TIDA-01093, BQ76952

Tool/software:

Dear TI expert,

i want to use BQ76930 design one 8s LiFePo4 BMS, which has OV, UV, OT, OC etc protection, i want to two 8S LiFePo4 battery can connect in series. Can the use of BQ76930 in series meet this requirement?

3 months ago

0 Arelis Guerrero 2 months ago

TI__Expert 5645 points

Hi,

Apologies for the delay on getting back to you.

I will need a little bit more details about your application, are you trying to stack 2x BQ76930 with 8s each to form a 16s1p battery configuration?

Regards,

Arelis G. Guerrero

0 user6501051 2 months ago in reply to Arelis Guerrero

Intellectual 815 points

i want to design one BMS for 25.6V20Ah battery module, i want to use MCU+BQ76930， but the two batteries (25.6V20AH) can be connected in series to 51.2V20Ah. I want to know if TIDA-00449 meet this requirement?

need two 8S battery module connected in series.

0 Arelis Guerrero 2 months ago in reply to user6501051

TI__Expert 5645 points

Hi,

Understand, in that case the TIDA-01093 will be a better reference as it shows how to stack 2x BQ76930 in series to get a higher voltage system.

In addition you can look into our newer device BQ76952 which will allow you to monitor all 16s cells in a single chip.

Regards,

Arelis G. Guerrero

+1 user6501051 2 months ago in reply to Arelis Guerrero

Intellectual 815 points

thanks

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BQ76930: Design an 8-series battery pack using BQ76930, with two batteries connected in series for use