Hello team,
My customer has met some issue using TS3A4751. The simplified circuit is as following:
All the NOx are connected together and pulled up to 3.3V through a 100Ohm resistor.
Below are the waveforms that captured with all INx pulled to low. CH1 is NO1, CH2 is COM1.
Normally, all COMx should be low as all INx are low no mater what signal is on NOx.
Using a larger pull up resistor, like 1kOhm will have lower COM output but customer can only accept 100Ohm pull up due to the heavy capacitive load.
Could you help to advise what may cause this issue?
Thanks and best regards,
Victor