This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DRV8412 strange behaviour

Hello,

Could anyone explain me this bdrv8412 behaviour?

My DRV is in mode (M3 = 0, M2 = 1, M1 = 1)  "Dual full bridges, one PWM input each full bridge with complementary PWM on second half bridge"

My input signal on Pin17 (PWM_A) is a PWM duty cycle swipe from 1 to 99% @ 1 kHz. There is no load attached to the outputs.

From 0 to about 45% the output yellow is working fine and is doing what I expect out of the blue input line. 

Above 45% duty cycle the behavior is a bit more special:

Does these pictures make any sense for you?

Cheers,

Chris