Hello, thank you for your confirmation towards the inquiry regarding AIC3101.
Unfortunately, this full schematic should not be disclosed on web since some circuit includes confidential information.
Meanwhile, I could observe this same phenomenon on AIC3101EVM.
I also tested to use several value of resistor in front of IN2L.
Please refer to enclosed test report, which also shows some configuration on EVM, and feedback us with your comment.
We thank you once again for your information.
Best regards,
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