DRV8718-Q1: Please help check the SN8718‘s schematic diagram

ian wu

Part Number: DRV8718-Q1

Tool/software:

hi Expert,

I need you help for this case,This is rather urgent.Please help review the schematic diagram of sn8718,It would be best if you could reply to me before getting off work!

5 months ago

0 Keerthivasan Kumanan 5 months ago

TI__Mastermind 18775 points

Hi Ian,

Let me review and feedback by Friday.

Best,

Keerthi

0 ian wu 5 months ago in reply to Keerthivasan Kumanan

Intellectual 795 points

Please respond quickly. Thank you！

0 Keerthivasan Kumanan 5 months ago in reply to ian wu

TI__Mastermind 18775 points

Hi Ian,

I am still reviewing. Please give me till Monday.

Best,

Keerthi

0 ian wu 5 months ago in reply to Keerthivasan Kumanan

Intellectual 795 points

hi keerthivasan

Today is Monday. could you replied yet ? Thanks .

0 Keerthivasan Kumanan 5 months ago in reply to ian wu

TI__Mastermind 18775 points

Hi Ian,

I don't see some of the capacitor values, so I can't do a full review. However, there are a couple of things:

1) Is there a PI filter in their system. It may be required for EMI/ EMC workaround.

2) Would add ferrite bead (DNP) or 0 ohm resistor footprint for also EMI/ EMC workaround.

3) Since they are doing LS sensing please connect SL1, SL5 to above shunt:

(9) DRV8718-Q1: Low-side current sense application - Motor drivers forum - Motor drivers - TI E2E support forums

4) DNP cap across SP and SN

5) Where all is charge pump used?

Best,

Keerthi