TPS25750: About combination of TPS25750 and BQ25792

Hi Hide,

Thanks for reaching out!

Give me some time to look into this and I will try and get back to you by the end of the week.

Thank you,

Kevin

Hi Kevin-san,

Thank you for your response.

I’m looking forward to hearing from you.

Regards,

Hide

Hi Hide,

Can you please provide me with all of the BQ's register (register dump), as well as the project configuration.

Thank you,

Kevin

Hi Kevin-san,

Project file is “EEPROM設定_221019.pdf”.

This information is the value when asking Raymond-san to generate " 7723_Config.bin ".

And, BQ's register is the default except for the registers set by Project file.

Regards,

Hide

Hi Hide,

Thanks for the document.

I will take a look at it next week!

Thank you,

Kevin

Hi Kevin-san,

I’d greatly appreciate your verification.

Regards,

Hide

Hi Hide-san,

Give me some time to take a look and verify it!

Thank you,

Kevin

Hi Kevin-san,

I’d greatly appreciate your verification.

Regards,

Hide

Hi Hide,

I will get back to you by the end of the week!

Thank you,

Kevin

Hi Kevin-san,

I’m looking forward to hearing from you.

Regards,

Hide

Hi Hide-san,

Of course!

Thank you,

Kevin

Hi Kevin-san,

Could you please let us know the current status?

I would appreciate your prompt reply.

Regards,

Hide

Hi Hide-san,

I am referring this to the BQ team!

Thank you,

Kevin

Hi Kevin-san,

I’m looking forward to hearing from you.

Regards,

Hide

Hi Hide-san,

Of course!

Tommy can you or someone on your team take a look at this?

Thank you,

Kevin

Hi Hide-san,

Can you provide a PD log and I2C scope capture (on I2C line from TPS25750 to BQ25792) for this scenario? 

Let me see if I can recreate the same issue from my end using the CHG EVM with your configuration. 

Thanks and Regards,

Raymond Lin

Hi Hide-san,

Can you provide the schematic of the BQ part?

From the waveform provided, I cannot tell what is the value of the measured current before and after the battery OVP is triggered.

TI US will be on holiday 24th and 25th and we will be back in office on the 28th.

Regards.

Hi Tommy-san,

I sent you “Request Friendship”.

If you accept, I can send you Schematic of TPS25750 and BQ25792 on private message.

About your other questions, I will contact you again after I get new information.

-Can you provide a PD log and I2C scope capture (on I2C line from TPS25750 to BQ25792) for this scenario?

-Let me see if I can recreate the same issue from my end using the CHG EVM with your configuration.

-From the waveform provided, I cannot tell what is the value of the measured current before and after the battery OVP is triggered.

Regards,

Hide

Hi,

TI is closed for the Thanksgiving holiday.

We will get back to you next week!

Thank you,

Kevin

Hi Kevin-san,

I got the following information.

- Can you provide the schematic of the BQ part?

-Can you provide a PD log and I2C scope capture (on I2C line from TPS25750 to BQ25792) for this scenario?

-Let me see if I can recreate the same issue from my end using the CHG EVM with your configuration.

-From the waveform provided, I cannot tell what is the value of the measured current before and after the battery OVP is triggered.

I can't post to E2E because there is our customer’s schematic information.

Therefeor, I sent information to your private message.

I’d greatly appreciate your verification.

Regards,

Hide

Hello Hide-san,

US team is on Thanksgiving holiday today.

Kevin will be able to respond to you on Monday.

Thanks and regards,

Rohit. 

Hi Raymond-san, Tommy-san, Kevin-san,

I sent information to Kevin's private message.

I’d greatly appreciate your verification.

Our customer needs to solve this problem as soon as possible.

I kindly ask for your ongoing support.

Regards,

Hide

Hi Hide-san,

I will review the BQ schematic and get back to you.

Edit: does the (D) under component value in the schematic means that the component is not populated? And what is the battery spec? What is the voltage reading at VSYS?

Edit: Can you do a full register dump of the BQ25792 before the battery OVP protection kicks in? I want to know the charger state at that moment.

Regards.

Hi Tommy-san,

We can’t disclose much information on E2E thread.

Therefore, I have sent the information to your private message.

I’d greatly appreciate your verification.

Regards,

Hide

Hi Hide-san,

I have replied to your private message.

If you have any other question regarding TPS25750 please continue posting on this thread as we will discuss the BQ25792 offline.

Regards.

Hi Tommy-san,

Thank you for always kind support.

I understand.

Regards,

Hide

Waiting for customer response on measurements