BQ27421-G1: goes to production after learning cycle

Will Wang47

Part Number: BQ27421-G1
Other Parts Discussed in Thread: BQSTUDIO

Hi team,

Customer is using our BQ27421 in their project, and they want to know what do they need to do after compete the learning cycle? And guides for this?

Thanks,

Will

over 5 years ago

0 Andy Liu (BMS) over 5 years ago

TI__Guru 52115 points

Hi Will,

I will suggest you do an accuracy check to make sure all their configurations are good. See the following blog for detailed steps.

https://e2e.ti.com/blogs_/archives/b/fullycharged/archive/2016/11/04/how-accurate-is-your-battery-fuel-gauge-part-2-2

Andy

0 Will Wang47 over 5 years ago in reply to Andy Liu (BMS)

TI__Expert 7670 points

Hi Andy,

Thanks for your comments. I'll ask them to do this.

By the way, I wander how should them integrated the gauge configuration to the MCU code? Now customer use a cypress MCU. Could you share some more comments on this?

Thanks and Best Regards,

Will

0 Andy Liu (BMS) over 5 years ago in reply to Will Wang47

TI__Guru 52115 points

Hi Will,

They can export a gm.fs file in the Golden Image tab in the bqStudio.

The following app note has some C code that your customer can reuse to program a gm.fs file to BQ27421.

http://www.ti.com/lit/an/slua801/slua801.pdf

Andy

Power management

Power management forum

BQ27421-G1: goes to production after learning cycle