DRV11873 has no output in my application.
I made the following confirmation and attempt
1.Test the impendence to GND of U/V/W of DRV11873
OK PCBA: about 5MΩ (with the Motor connectted to drv11873)
NG PCBA:about 200Ω (with the Motor connectted to drv11873)
2.Test the impendence to VCC of U/V/W of DRV11873
OK PCBA: about 5MΩ (with the Motor connectted to drv11873)
NG PCBA:about 16KΩ (with the Motor connectted to drv11873)
3.Test the voltage V5 of DRV11873 is OK
4.Replace a new DRV11873 ,works normally
Please help to analyze if there is something wrong with the design.
*Motor parameter: Terminal Resistance:4.5Ω Inductance:1.0mH Kt:0.006Nm/A 12poles 3 phases, Brush less.
*I asked a related question before :