DRV8328: Question about the charge pump

Jenson

Part Number: DRV8328
Other Parts Discussed in Thread: DRV8323,

Hi Team,

I would like to use charger pump for extenal circuit. （A bootstrap voltage is needed to drive the external mos,need support 100%duty）

For DRV8323 I can use VCP to do this.

So I would like to double check with you for DRV8328, I need to use BSTA/BSTB/BSTC right?

I can't use GVDD right? GVDD is the voltage generated by a charge pump and use for bootstrap and Trickle Charge Pump. So I need to use BSTA/BSTB/BSTC.

please let me know if i have any misunderstanding.

Thanks!

Jenson

4 months ago

0 Joshua Maize 4 months ago

TI__Expert 7251 points

Hi Jenson,

Thank you for your question.

Let me look Into this matter and provide a suggestion this week. My immediate thought would be no for using GVDD as well, but allow me to check what might be suitable for your application.

Best Regards,

-Joshua

0 Joshua Maize 3 months ago in reply to Joshua Maize

TI__Expert 7251 points

Hi Jenson,

Is this topic still open or have we closed this over internal meeting?

Best Regards,

-Joshua

0 Jenson 3 months ago in reply to Joshua Maize

TI__Intellectual 2195 points

Hi Joshua,

I think we can close this E2E,let's discuss internally.

Thanks

Jenson

0 Joshua Maize 3 months ago in reply to Jenson

TI__Expert 7251 points

Hi Jenson,

Thanks for the confirmation.

Best Regards,

-Joshua

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DRV8328: Question about the charge pump