BQ24253: Charger behavior if TS is left open

TISL

Expert 4065 points

Part Number: BQ24253

Tool/software:

Dear e2e Support,

Could you clarify how the charger react in case of the TS pin is disconnected?

TS_STAT moved to '111', but does it stop the charge?

Regards,

3 months ago

+1 Garrett Kreger 3 months ago

TI__Mastermind 24110 points

Hi TISL,

If TS pin is left unconnected on the BQ24253 the device will not be able to charge. Please keep in mind the BQ24253 is the stand alone version of the part. The customer will not have access to TS_STAT register.

Best Regards,

Garrett

0 Groupe-HW 3 months ago

Prodigy 50 points

Hello,

Thanks Sebastien for post creation.

In our design, the NTC 10k is integrated in the battery pack, but in our PCBA we have the R2:10k / R3:33k adaptation to adjust temp threshold.

https://drive.google.com/file/d/19GPFUw1UZ9dUaloKsBZjY7yQt9_IlF94/view?usp=drive_link

We didn't find a couple of value who stop the charge when the NTC wire is cut.

Thanks

Power management

Power management forum

BQ24253: Charger behavior if TS is left open