BQ25155: VDPPM max

Hi,

I will check what we have available for this value, though I don't think it is something we warrant via the EC table.

Best Regards.

Hi,

Thank you very much for your help.

I ensure that it should be the customer reference, not be the specification.

Best regards,

HI,

That should make things a bit easier. I will update you once that information is available.

Best Regards.

Hi,

Would it be possible to let us know how it is going on.

Best regards,

HI Toshiro,

I am waiting to hear back from our test engineer regarding this data. Will update as soon as it is available.

Best Regards.

Hi Juan,

Thank you for your feedback. I understood. I am waiting for your feedback.

best regards,

Hi Toshiro,

Do you know what temperature range they expect to operate across?

Best Regards,

Juan Ospina

Hello,

I have asked to the customer and he would like to know follwing temperature range

0C < Tj < 125C and 10C < Tj < 85C

Could you please check VDPPM max in these temperature range ?

best regards,

Hi,

For 10 to 85C the most they can expect to see is around 250 mV toward the higher end of the temperature.

I'll have to what we have available for 125C.

Best Regards,

Juan Ospina

Hi Juan,

Thank you very much. I can tell our customer VDPPM max value is around 250mV in 10C to 85C Tj range.

Please let us know 0C to 125C Tj case, if you get the number.

Best regards,

Hi Toshiro,

I may have to double check behavior at this temperature in lab so this one may take a bit longer.

Does the customer expect to operate at these temperatures? It's important to note that at 125C the device is likely to enter tShut in which case it won't be charging anyways. Additionally the device thermal regulation may have an effect on charging depending on the THERM_REG settings.

Best Regards,

Juan Ospina

Hi Juan,

Thank you very much for your cooperation.

The reason the customer would like to make sure this temperature range of 125C is this number is BQ25155 operating max temperature. But he actually uses up to 85C.

I would like to make sure that we are difficult to test it becuase thermal shutdown work at 125C Tj ?

Best regards,

Hi Toshiro,

Yes, thermal shutdown should happen at a typical temperature of 125C Tj. I'm still working on getting these results however I'm having a tough time getting access to an oven to run the test. I aim to have it done by Friday.

Best Regards.

Hi Juan,

Thank you very much for your dedicated help.

I undertsood. I will try to negotiate to the customer to be able to avoid this test.

By the way, this customer is asking about Ron IN-PMID) data too. I am now checking the detail and post it on another thread.

Best regards,

Hi Toshiro,

Thank you. I will return with lab results once I am able to test this.

Best Regards.

Hi Juan,

As we disucssed with the customer, the customer drops VDPPM at 125C.

On the other hand, he would like to know Ron(IN-PMID) temperature characteristcs 10C to 85C Tj. The reason is his target end equipment is too small so he needs to care about system temperature raising during battery charging. Even though we know thermal regulation prevent from the die temperature going to high, he is trying to control his system temperature raising by minimiizng IN to BAT voltage as much as possible.

if I have to put his new request on another thread, please let me know.

Best regards,

Hi Toshiro,

Understood, I will look to get this information as well. We can continue on this thread for now.

Best Regards.

Hi Juan,

Thank you very much for your help. Please let me know if you have any issue.

Best regards,