DRV8718-Q1: dead time validation data

Thank you for your answer.

but I have question for this.

1.  in your screen shot, I can see the dead time to 433ns.

     by any chance, if the dead time is shorter than usual, I think the short condition is happened right?

2. Can I get a report that proves the device is fully capable of preventing SHORT conditions?

3. and Can I use the dead time 0us(not handshaking)?

  I think if I use the dead time setting to 0us(since there is hand shaking deadtime is 350ns),

  but OEM customer is worried about it is ok if I set to dead time is 0us.

  so if you have, please share the report to probe that is ok.

4. if you don't have report of No.3, do you have report for tolerance of hand shake dead time?

In 1), you said analog one. does it mean RC time constant for calculating hand shake dead time?

Can you answer for other questions?

Shinya Morita said:

4)Please refer above.

If handshaking is not comfortable, DRV can add digital dead time with SPI variant.

Thank you for answer.

I actually wanted to ask if DRV can guarantee 350ns deadtime.
That's why I asked for a tolerance.
If the dead time has a tolerance based on the temperature or the condition of the FET,
I think you can decide whether to compensate more or not based on how much tolerance you have.

So (dead time in the question below means hand shake dead time).
1. if you have tolerance data for dead time, I would like to see it.
2. or if you have a report on whether dead time guarantees 350ns, I'd like to see it.

1. Can you share the propagation delay about hand shake deadtime and related study document?

2. actually I'd like to see if dead time can be shortened than specification 350ns.

thank you for your question. Monday 9/4 is national holiday in U.S. we will support this when back to office.

regards

Shinya Morita

Thank you, please answer to my request.

Since V_GH is less than 1.2V, it seems that if I use a FET with a VGS(th) of 2V, there is no chance of short-circuiting. Is this correct?