BQ27Z561: BQ27Z561/BQ27Z561-R1/BQ27Z561-R2 not used pin

RYOSUKE ARAKI

Prodigy 30 points

Part Number: BQ27Z561

When using the "bq27z561-r2", please tell me how to handle unused pins. (INT, PULS, NU)

Not connected?

To connect to a terminal somewhere?

Connect to ground?

Pull-Up?

Pull-Down?

Do you have documentation for wiring process and registers in “bq27z561”?

8 months ago

0 Dominik Hartl11 8 months ago

TI__Guru 51556 points

Please leave INT, PULS and NU floating. Don't connect anything.

The registers are explained in the TRM https://www.ti.com/lit/pdf/SLUUC54

What do you mean with "wiring process"?

0 RYOSUKE ARAKI 8 months ago in reply to Dominik Hartl11

Prodigy 30 points

Dear Dominik Hartl11

Thanks for your reply.

>What do you mean with "wiring process"?
Don't worry about it.
However, when I used it, I wanted to know if there was
a rule such as "If you don't use the ** pin in this part, what do you do?"

0 Dominik Hartl11 8 months ago in reply to RYOSUKE ARAKI

TI__Guru 51556 points

Unused outputs: leave floating

Unused input or open drain: pull down with 10k

0 RYOSUKE ARAKI 8 months ago in reply to Dominik Hartl11

Prodigy 30 points

Dear Dominik Hartl11

Thanks for your reply.

Power management

Power management forum

BQ27Z561: BQ27Z561/BQ27Z561-R1/BQ27Z561-R2 not used pin