DRV8432: What is the reset timing?

Aaron Jones

Part Number: DRV8432

Hi TI,

I'm trying to understand the latency / setup&hold times for the RESET_AB / CD lines. What is the minimum pulse width for a reset signal? Does this pin have a deglitch? Are there any timing diagrams I can refer to?

Thanks in advance!

over 7 years ago

0 Rick Duncan over 7 years ago

TI__Guru** 114905 points

Hi Aaron,

We will investigate and reply. This may take a few days.

0 Aaron Jones over 7 years ago in reply to Rick Duncan

TI__Intellectual 760 points

Hey Rick,

Thanks for looking into this.

What kind of answer should I expect in a few days--in other words, will this need to be characterized or measured? Would it be possible to get an answer before the end of the week?

0 Rick Duncan over 7 years ago in reply to Aaron Jones

TI__Guru** 114905 points

Hi Aaron,

I found some information that may be of use here: e2e.ti.com/.../1698763 reset#1698763

More information to come later today.

0 Rick Duncan over 7 years ago in reply to Rick Duncan

TI__Guru** 114905 points

Hi Aaron,

Data was measured in the lab @ VDD = GVDD = 12V

I'm trying to understand the latency / setup&hold times for the RESET_AB / CD lines. What is the minimum pulse width for a reset signal? Does this pin have a deglitch? Are there any timing diagrams I can refer to?

At 25C, the minimum pulse width is about 30ns. There is no deglitch on this pin.
The delay from /RESET_AB falling to output disabled and /RESET_AB rising to output enabled is approximately the same (50ns).

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DRV8432: What is the reset timing?