SLIS175 November 2016 DRV8872-Q1
If current regulation is not needed, the ISEN pin should be directly connected to the PCB ground plane. This mode provides the highest possible peak current: up to 3.6 A for a few hundred milliseconds (depending on PCB characteristics and the ambient temperature). If current exceeds 3.6 A, the device might reach overcurrent protection (OCP) or over-temperature shutdown (TSD). If that occurs, the device disables and protects itself for about 3 ms (tRETRY) and then resumes normal operation.