DRV8873-Q1: DRV8873S-q1 -> change mode without latching the disable pin

Mat1980

Part Number: DRV8873-Q1

Hello,

Is there an option to change the driver mode without latching the disable or restarting the device on the SPI variant?

"In the SPI version of the device, the mode setting can be changed by writing to the MODE register in the IC1 control register because this device version has no dedicated MODE pin. The device mode gets latched when the DISABLE signal transitions from high to low."

Thanks for your feedback!
Matthias

over 2 years ago

0 Ryan Kehr over 2 years ago

TI__Guru 54675 points

Matthias,

Unfortunately, no. This is meant to protect from unintentional MODE changes. So, you will have to cycle DISABLE pin for the MODE change to take effect.

Regards,

Ryan

0 Mat1980 over 2 years ago in reply to Ryan Kehr

TI__Intellectual 1210 points

Thanks for the quick feedback Ryan.
Are there other functions which rely on a disable latch?

Thanks,

Matthias

0 Ryan Kehr over 2 years ago in reply to Mat1980

TI__Guru 54675 points

Matthias,

I don't see any other cases specified in the datasheet.

Regards,

Ryan

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DRV8873-Q1: DRV8873S-q1 -> change mode without latching the disable pin