Tool/software:
Hello,
In my application, I'm using DRV8873H to drive a resistive load with high-side configuration: output is connected to resistive load to GND.
- My resistive load is about 6Ohm.
- Driving signal: 200Hz with Duty Cycle controlled.
I also have 3 more I2C devices on the board.
When the load is not being driven, the I can recognize the IC and communicate to it.
However, when the load is being driven, the bigger the duty cycle, the more I cannot talk to the periphrals.
For example, at 40%, I can only talk to 2 devices, at 100%, I cannot recognize any devices anymore.
Is there a chance that the driver is interfering with my GND potential?
If yes, what can I do to improve the situation? Should I put an Inductor before my load, or should I increase the resistance of the load itself?
Thank you very much in advance.
Best.
