DRV10970 BRKMOD PIN Issue

Hi Team,

The customer is using DRV10970. The attachment is his schematic. VM is 8V.  As the description of the data sheet, if the the BRKMOD pin is high level, the motor is brake.  However, when  the BRKMOD pin is high level, the customer's motor is still rotation, not brake. The high level for the BRKMOD pin is 3.3V.  

Why  the motor is still rotation when the BRKMOD pin is high level?  How to solve the issue?

Thanks,

Best Regards,