BQ27Z561: BQ27Z561 - Nu Pin connection

george hines

Part Number: BQ27Z561

We are using BQ27Z561YPHR chip. The problem is that the NU pin is connected to BAT_SENS pin on our PCBs (please see attached schematic). The question is, what are the consequences of such a mistake on the board? How can this affect the chip's performance? How much does it affect?

over 5 years ago

0 Onyx Ahiakwo over 5 years ago

TI__Guru* 76230 points

Hi George,

I don't see a schematic attached, but based on our description, i can't tell what they impact will be as we never tested for such. I would not recommend keeping it that way though.

thanks

Onyx

0 george hines over 5 years ago in reply to Onyx Ahiakwo

Prodigy 20 points

Hi Onyx- thanks for the reply - adding the schematic - we ran out of space for routing - the baord is funcational we are just wondering if there could be any negatvie of making the conneciton

0 Onyx Ahiakwo over 5 years ago in reply to george hines

TI__Guru* 76230 points

I can't say for certain if there will be an impact on the chip down the line. I doubt there will be as the pin was a no connect pin, so there shouldn't be a negative impact. Keeping it connected, you do so at your own risk.

thanks

Onyx

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BQ27Z561: BQ27Z561 - Nu Pin connection