BQ2980: BQ2980 7 cell series system

christos christou

Part Number: BQ2980
Other Parts Discussed in Thread: BQ77915, BQ76930, BQ78350

Hello i was looking over the web a solution for 7 cell series with cell balancing function, i found out BQ2980 supports only up to 5 cell, is there any other solution for 7 cell ?(no MCU)

over 4 years ago

0 Batt over 4 years ago

TI__Mastermind 42535 points

I have referred this to the part specialist. They will get back to you in 3-4 days.

0 christos christou over 4 years ago in reply to Batt

Intellectual 270 points

Thanks you

0 Sandy Xu over 4 years ago

TI__Prodigy 300 points

Hi Christos, just to confirm this is 7 cells in series not in parallel right? bq77915 is a 5s protector that can stack to 10s. that can be used for a 7s solution.

please let me know if you need more help.

regards,

Sandy

0 christos christou over 4 years ago in reply to Sandy Xu

Intellectual 270 points

Yes please how can i find references design for 7 cells?

Is BQ77915 programmable?

In datasheet it says no monitoring that mean it can't communicate bettery level to the host MCU?

0 Matt Sunna over 4 years ago in reply to christos christou

TI__Guru* 77283 points

Hi Christos,

I noticed your question has not been answered and I apologize for the delay.

The BQ77915 is not programmable, but there are multiple options that are configurable using the pins. The datasheet explains these in detail.

If you are looking for a device that can communicate the battery level to an MCU, the part you need is the BQ76930. It is a battery monitor with protections and cell balancing, but it also reports cell voltages, current, and temperature to an MCU or to the BQ78350 (companion controller that can be used instead of an MCU).

Best regards,

Matt

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BQ2980: BQ2980 7 cell series system