DRV2625: DRV2625 power on sequence requirement

Poki Huang

Expert 1060 points

Part Number: DRV2625

Hi TI:

Dose DRV2625 have power on sequence requirement?(VDD, NRST, TRIG/INTZ)

Thank you~~

Poki

over 3 years ago

0 Luis Fernando Rodriguez S. over 3 years ago

TI__Guru* 84915 points

Hi, Poki,

We don't have a specific power on sequence, but we have some recommendations for VDD.

We suggest to have VDD completely stable before performing any action on the device. In addition, we recommend to use a VDD ramp-up rate faster than 3.6 kV/s in order to avoid conflicts with the brownout protection.

Please let me know if you have additional questions or comments.

Best regards,
Luis Fernando Rodríguez S.

0 Poki Huang over 3 years ago in reply to Luis Fernando Rodriguez S.

Expert 1060 points

Hi Luis:

So NRST and TRIG/INTZ can be any level before VDD rise up?

Or we should keep NRST and TRIG/INTZ low until VDD rise up?

Thank you~~

Poki

0 Luis Fernando Rodriguez S. over 3 years ago in reply to Poki Huang

TI__Guru* 84915 points

Hi, Poki,

I understand your point now. Even if the datasheet states that these pins (NRST and TRIG/INTZ) supports a maximum level of 6V, I would suggest to keep them low until VDD rises up and it is stable. This will allow a correct device behavior during the power on sequence.

Best regards,
Luis Fernando Rodríguez S.

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DRV2625: DRV2625 power on sequence requirement