DRV8962: T_effective to use for measure of effective PWM

Tool/software:

Hi, 

I have a query regarding the DRV8962 on the estimation of the effective PWM duty cycle. The datasheet listed these parameters which I think should be the major factors affecting the accuracy of the duty cycle.

We are using the DRV8962 as 4 independent half bridge drivers, not in H-Bridge config. I assume the effective T_on/ T_off will be T_on/ T_off minus the delay time contributed by propagation delay + rise/fall time + dead time. And the effective duty cycle will be T_on/( T_on + T_off) after minus the delay times.

The confusion comes from whether t₅/t₆ include the rise/fall time and dead time. I did not take t₁/t₂/t₃/t₄ into consideration assuming enable pins are already enabled long before switching.

T_effective = T_on/ T_off - t₅/t₆ since t_RF and t_D are included in t₅/t₆

T_effective = T_on/ T_off– (t₅/t₆ + t_RF + t_D) as t_RF and t_D are excluded in t₅/t₆

Please let me know if any of the above understanding is incorrect. Thank you.