TPS25750EVM: 2S battery charging current is limited 0.2A

Fabio Gou

Part Number: TPS25750EVM
Other Parts Discussed in Thread: TPS25750, BQ25731

When I test TPS25750EVM board, I encountered a problem. I have shorted D2.

If I set TPS25750 in sink or source mode, 2S battery_2A charging current, the charging current is limited to 0.2A. I have tested for many times.

One of our customer will use TPS25750 under 2S battery condition.

But 4S battery, the charging current will be right as the tool setting. I have tested 2A 3A and it operate normally.

Could please give me some advice?

over 4 years ago

0 Jasper Li over 4 years ago

TI__Mastermind 46905 points

Hi Fabio,

may I know which device are you asking? the title is TPS25750, but the content seem to be charger.

0 Fabio Gou over 4 years ago

TI__Expert 4445 points

I am asking the TPS25750EVM board, in which there is a charger BQ25731.

0 Fabio Gou over 4 years ago in reply to Jasper Li

TI__Expert 4445 points

I am asking the TPS25750DEVM board, in which there is a charger BQ25731.

0 Jasper Li over 4 years ago in reply to Fabio Gou

TI__Mastermind 46905 points

Hi Fabio,

I will change the organization to PI team.

0 Chuck Branch over 4 years ago

TI__Mastermind 32791 points

Jasper,

I will look at this issue when I go into the lab later this week. I have not seen this particular failure before and I want to replicate it before I get back to you

0 Chuck Branch over 4 years ago in reply to Chuck Branch

TI__Mastermind 32791 points

Jasper,

This may be a GUI configuration issue, we are debugging currently.

+1 Chuck Branch over 4 years ago in reply to Chuck Branch

TI__Mastermind 32791 points

Jasper,

IT would be very helpful to me if you could select the 7.01 version of the GUI and repeat your testing with that version.

I am working with 2 other customers on similar issues, and they both report that the 7.01 version is functional for them.

To select this version, please us this URL: https://dev.ti.com/gallery/view/1769824/TPS25750_Application_Customization_Tool/ver/7.0.1

Thanks,

Chuck

0 Fabio Gou over 4 years ago in reply to Chuck Branch

TI__Expert 4445 points

Chuck, thanks! I will try.

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TPS25750EVM: 2S battery charging current is limited 0.2A