Hi team,
My customer found a issue about ISO7731DWR, could you please help review and give some suggestions? Thank you.
The problem is the waveform on the output side OUTC(5pin) and the input side are inconsistent, with a large number of 300ns pulses on the output side .The customer is trying to replace the chip with a new one and the issue still occurs.
However, this issue does not occur when the customer changed the ISO7731 with Nsi8231 or CA-IS3731.
Have you seen similar problems before? Could you please help give some comments? Thanks!
Below is the schematic and PCB layout.
Thanks!
Regards,
Ivy