Part Number:DRV8840
To me the datasheets for DRV8840 and DRV8829 are identical. One is for step motor applications and the other for DC motor applications, but both datasheets mentioning that they can do both applications. All input signals are the same and all specifications are the same. Only the absolute maximum rating for VM differ slightly. However most of the figures in the datasheets are difference, so it is not just a copy-paste.