BQ79616-Q1: Current Measurement through BUS BAR pins

Savas Sahin

Prodigy 230 points

Part Number: BQ79616-Q1

Hello TI,

I am wondering, is it possible to measure current using dedicated Bus Bar pins?

For two different cases:

1- Low side current measurement

- I am planing to use a shunt resistor and connect 2 ports to directly BBP and BBN, than simple calculation like I = V_diff / R_shunt

2- High side current measurement in stacked operation

- Is it possible to measure current with same operation (R_shunt and simple calculation) in the top BQ79616-Q1 device's bus bar pins in a stacked operation where more than ten BQ79616-Q1 stacked.

Thank you,

All the bests,

Savas

over 4 years ago

0 Taylor Vogt over 4 years ago

TI__Genius 17370 points

Hi Savas,

This is not recommended, actually we have devices called bq75614 and bq79656 that will RTM shortly that reuse Bus bar pins as Current sense pins for this type of application exactly. Please stay tuned.

Regards,

Taylor

0 Savas Sahin over 4 years ago in reply to Taylor Vogt

Prodigy 230 points

Hi Taylor,

Thank you for the answer, Is there any expected date for bq79656?

bq79614 is for 14S since I need at least 15S operation.

All the bests,

Savas

0 Taylor Vogt over 4 years ago in reply to Savas Sahin

TI__Genius 17370 points

Hi Savas,

Please friend request and private message for more details. I will close this thread please.

Regards,

Taylor

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BQ79616-Q1: Current Measurement through BUS BAR pins