DRV8412 OC_ADJ pin adjusting

masahiko shimizu

Is it possible that the voltage of DAC supply adjusts OC_ADJ pin?
If OC_ADJ pin detect the voltage of pin, I think the above is possible.
If OC_ADJ pin detect the current of load, I think the above is impossible.

Thanks

Shimizu

over 10 years ago

0 Rick Duncan over 10 years ago

TI__Guru** 114905 points

Hi Shimizu-san,

The recommended approach is to use a resistor. Some customers have been using a digital pot instead of a single resistor.

According to datasheets, some digital pots may power up as an open circuit. If it does, it is recommended to have a regular resistor in parallel so that the OC_ADJ pin will always see some resistance. The digital pot can then be used to reduce the resistance.

0 masahiko shimizu over 10 years ago in reply to Rick Duncan

Guru 11235 points

Hi Rick-san

Thank you for your support.

I understood.

Thanks

Shimizu

Motor drivers

Motor drivers forum

DRV8412 OC_ADJ pin adjusting