The settings of Control Registers in DRV8301 will be kept after power off

Hi Jinku,

The settings are not held after power down of the device. You would need to rewrite the settings after every power cycle. One way to turn off the driver but leave the logic is to utilize the EN_GATE pin. 

HI Nick,

I could use some clarification on your answer to Jinku.

Do you mean that if power is provided to the device and is uninterrupted that the control registers are preserved regardless of the state of the EN_GATE pin? 

For example, if I provide power to the 8301, then enable it via EN_GATE, then configure the control registers it via SPI and then disable it via EN_GATE, the control registers will retain the values I set and will be the same the next time I enable?

Thanks,

Jon

Hi Jon,

If power is interrupted to PVDD the control registers will revert to their default values.

The implementation would be to maintain power to the DRV8301 and use EN_GATE to disable/enable the pre-driver.