BQ20Z45-R1: Dsg Relax Time / Chg Relax Time

user4041087

Part Number: BQ20Z45-R1
Other Parts Discussed in Thread: BQ40Z50-R2, BQ20Z40-R1, BQ20Z65-R1, BQ20Z60-R1, BQ40Z50

Can we set these parameters to any value?
If we can't,
We want to know these parameters value.

over 4 years ago

0 Matt Sunna over 4 years ago

TI__Guru* 81034 points

Hi,

From this document, it does not appear these parameters are available in the BQ20Z45-R1: https://www.ti.com/lit/an/slua520/slua520.pdf?ts=1600187020627

If this is for a new design, the BQ40Z50-R2 is recommended.

Best regards,

Matt

0 user4041087 over 4 years ago in reply to Matt Sunna

Prodigy 120 points

Thank you for the information.

We have understood that these parameters are necessary to judge Gas Gauge Modes. (Charge mode/ Relax mode /Discharge mode)

Is a fixed value already set ?

0 Kang Kang over 4 years ago in reply to user4041087

TI__Mastermind 24870 points

The gauge has default values you can use, but please check the TRM for the threshold settings.

Thank you!

0 user4041087 over 4 years ago in reply to Kang Kang

Prodigy 120 points

Thank you for the information.

We can't find default values in sluu387a.pdf (bq20z40-R1/bq20z45-R1 Technical Reference).
But we can find default values in sluu386.pdf (bq20z60-R1/bq20z65-R1 Technical Reference).
Dsg Realx Time : 1s
Chg Relax Time : 60s

Does bq20z45-R1 have same default values that bq20z60-R1/bq20z65-R1 has ?

0 Kang Kang over 4 years ago in reply to user4041087

TI__Mastermind 24870 points

Hello User,

Ideally these defaults don't change. If you notice, these are the defaults the bq40z50 uses as well.

However, it is dependent on your system load dynamic.

Thanks!

0 user4041087 over 4 years ago in reply to Kang Kang

Prodigy 120 points

Dear Kang-san

Thank you very much.

Power management

Power management forum

BQ20Z45-R1: Dsg Relax Time / Chg Relax Time