LM5118-Q1: LM5118-Q1

file:///D:/Downloads/WBDesign18_Input%20Transient-3%20(1).pdf

Hi Manmohan,

manmohan singh said:

file:///D:/Downloads/WBDesign18_Input%20Transient-3%20(1).pdf

I can not access the schematic as this is text.

Best Regards,

Feng Ji

 Hi please check this.

Hi any leads?

Hi Manmohan,

Cycle by cycle current limit is triggered at short circuit condtion, so you can see 10A at short circuit.

Add C21 as shown below to enter hiccup mode, which may help to improve the heat.

Best Regards,

Feng Ji

Thank you, Feng.

I have Implemented Your comment, still the diodes heat in similar way. So, can we conclude this as fundamental behavior of the IC.

will there be any probability of component failure if I kept it for a long time in short circuit condition. 

Hi Manmohan,

You may increase C21 to extend the hiccup off time for better thermal. You may also try to reduce the peak current limit.

Component may fail if it is over temperature.

Best Regards,

Feng Ji

Thank you, Feng.

I will implement your comment.