BQ28Z610: Circuit schematic problem

ZHENG LIU

Part Number: BQ28Z610

Hi ：

As shown in the figure, bq28z610 is used for primary protection, and Seiko IC is used for secondary protection. The over-voltage protection, under-voltage protection, over-current protection, and short-circuit protection current values of the secondary protection are larger than those of the primary protection. That is, the secondary protection can be used only when the primary protection fails. So I don’t know whether the circuit diagram is reasonable or not. Will the Mos device in the red frame have any effect on bq28z610?

over 5 years ago

0 Kang Kang over 5 years ago

TI__Mastermind 24870 points

Hello Zheng,

One of our apps engineers will get back to you by Friday.

Thanks!

0 ZHENG LIU over 5 years ago in reply to Kang Kang

Prodigy 220 points

Looking forward to reply

0 ZHENG LIU over 5 years ago in reply to ZHENG LIU

Prodigy 220 points

And there's a problem.Today, I heard that in sleep and shutdown mode, there is a possibility of failure to wake up. Have you received any feedback?

0 ZHENG LIU over 5 years ago in reply to ZHENG LIU

Prodigy 220 points

Can the above schematic questions and new questions be solved together?thank you

0 Kang Kang over 5 years ago in reply to ZHENG LIU

TI__Mastermind 24870 points

Hello Zheng,

Regarding the shutdown wake, you will need to use the bq28z610-R1.

0 Jessica H. over 5 years ago in reply to ZHENG LIU

TI__Genius 11535 points

Hello Zheng,

I was looking at your schematic and I noticed that you have an extra ground (highlighted in yellow below). Did you add that for a specific reason? If not, I think you can remove it. Otherwise you're schematic looks good.

Power management

Power management forum

BQ28Z610: Circuit schematic problem