Part Number:DRV8701
Hi TI team!!!
I saw this question in the support forum before but the main difference is that I don't want to use both motors at the same time. I'm using DRV8701P motor driver. Since I want to keep OC detection (through the shunt resistor tied to SP and SN pins), both motors were connected to VM: one from SH1 pin to VM and the second from SH2 pin to VM. As I said before, only one will work at the time. I saw control interface table (truth table) and it is possible to do it (in theory), but for some reason, when the input pins (IN1, IN2) go low (High-Z impedance at the output) an indicator leds in parallel with the motors turn on. It is strange to me since it is supposed to have high impedance to VM or floated, and no current must flow (not the enough current to turn on the led). Am I using the IC correctly? Is it possible to use this IC in this way? Unfortunately I can't change this component.
Thanks in advance for your help.
