DRV8302

Shashank more

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Iam working with DRV8302.There is a problem that whenever i pull the ENABLE pin high the FAULT pin goes low.I don't know why it is happening.I have disabled the overcurrent protection.So i don't think so if there is any source of fault....Please help.

over 9 years ago

0 Rick Duncan over 9 years ago

TI__Guru** 114905 points

Hi Shashank,

Please refer to section 7.3.4.6 of the datasheet. If the FAULT pin is asserting, check table 5 for possible causes.

0 Shashank more over 9 years ago in reply to Rick Duncan

Intellectual 650 points

I checked my GVDD pin voltageIt is equal to 1.99 volt.what is the GVDD undervoltage threshold value?....Maybe in my case GVDD undervoltage fault occurred.If it was occured the how to solve it?

0 Rick Duncan over 9 years ago in reply to Shashank more

TI__Guru** 114905 points

Hi Shashank,

The undervoltage threshold is listed in the electrical characteristics of the datasheet.

Are the AVDD and DVDD regulators with specified values?

Are the outputs connected as specified in the datasheet? Is the powerpad connected to GND?

0 Shashank more over 9 years ago in reply to Rick Duncan

Intellectual 650 points

yes, DVDD is 3.3V and AVDD is 6V.groundpad is also connected perfectly.Only GVDD is 1.99V.Is my IC damaged?

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