BQ24171: BQ24171 Safety Timer Spec when JEITA Condition with LOW and HIGH Temperature

Hi Jasper,

From the datasheet, it doesn't say anything specific to this. How much time is programmed for normal safety timer? Did you already try to wait 2x the normal time?

Regards,
Steven

Hi Steven 

We checked timer fail at  JEITA  condition.

Fail mean Safety Timer dose not extension. 

If Charge Current decrease , 　

I think that the safety timer will be prolonged in proportion to it, but in reality the charging will be terminated with a Setting timer .

The question is easy. Is the timer suspend in JEITA Condition ?

Regard 

Jasper  ( Sugimoto )

Jasper,

Doesn't seem that the timer is extended during the JEITA condition based on the datasheet. What are your observations? It is not clear from your reply, does the safety timer actually terminate charging at normal TTC setting during JEITA or that the safety timer never triggers termination during JEITA?

Regards,
Steven

Hi Steven 

Thanks your comment.

I think ,  BQ24171 Safety timer dose not  " extension "  when JEITA condition .   

This mean , this device dose not have  " Timer extension " function when Charge Current decrease,

I think this device does not have this timer extension function even if the current is reduced when JEITA condition.

Is this Correct ? 

Thanks and Regard

Jasper   (  Sugimoto  ) 

March,

If the datasheet doesn't state anything related to the safety timer extension during JEITA condition, then it is that the timer extension is not there.

Regards,
Steven

Hi Steven 

Thank you very much this one. 

We understood about this Safety timer condition with JEITA.

Regard

Jasper ( Sugimoto )