BQ25101: Current into IN when IN is below the UVLO threshold?

Scott Brenneman

Part Number: BQ25101

What is the current into the IN pin when the voltage thereon is below the UVLO threshold? The text in the datasheet says that "the part is considered 'dead' and all pins are high impedance." I don't see a parameter in the Specifications section which corresponds to this state. The closest I can find is Standby, with a current of 125 uA max., but this doesn't seem plausible.

Thanks,

Scott

over 6 years ago

0 Bill Johns over 6 years ago

TI__Guru* 75516 points

Hello Scott
I am checking on this and will have an update you late Monday Dallas time.

0 Bill Johns over 6 years ago in reply to Bill Johns

TI__Guru* 75516 points

Hello Scott
Some circuit blocks are active during UVLO. The current will be below the standby max number of 125uA.

0 Scott Brenneman over 6 years ago in reply to Bill Johns

Genius 3295 points

Hi Bill,

Is there any chance that it is just a few microamps? That would be great!

Thanks,

Scott

0 Bill Johns over 6 years ago in reply to Scott Brenneman

TI__Guru* 75516 points

Hi Scott
It will be higher than a few microamps. I checked this in the lab and current is running about 50uA in UVLO condition.

0 Scott Brenneman over 6 years ago in reply to Bill Johns

Genius 3295 points

Bummer -- but at least we know the answer. Thank you for taking the time to measure it!

Regards,

Scott

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BQ25101: Current into IN when IN is below the UVLO threshold?