LM7310: LM73100RPWR

Hi Lin,

I am using translate app to read this.

You mentioned that when there is current surge at U1001, U1004 is also getting affected and has abnormal output. Can you describe more on what do you mean by abnormal output and how big is the current surge at U1001 and is it due to input supply or output load. 

Any waveforms?

Best regards,
Arush

hi Arush,

There were some problems with my description before.

When there is current surge at the 12V_NX netlist, then the U1001 will be malfunctioning. The waveform is as follows. But when I use wires to replace the CM1000, the U1001 will work normal. In another method, I use a wire to connect the input and output of U1004, the U1001 will also work normal. The load current of U1004 is very low. 

Hi sender,

Apologies for the delay. I am stuck in few other testing hence the delay. I will get back to you before tomorrow eod.

Best regards,
Arush

Hi Arush,

Do you have any spare time recently to help me analyze this issue? I have no idea to solve this problem.

Best regards