We are using DRV8701PRGE in our motor controller using the Half Bridge operation shown in section 7.3.2 (page 15) of the manual. For the operation of the driver in this configuration, page 15 also shows a table mentioning 2 modes of operation: 1) Coast; disabled High-Z. 2) Brake; low-side slow decay. My question is what is the difference between both modes? for the full H-Bridge (shown in page 14) there are schematic diagrams that show the difference between all modes of operation along with the table, but for the half-bridge there are no schematics and no explanation.
Also is it right to say that the transistor across the motor in the half-bridge operation will never get turned on by the driver as it could create a dead short? If so, wouldn't a simple diode be enough instead of a transistor?
-Ashraf
