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STGSH50M120D pins K1 and K2

AlbertoAbbolli
Associate

Hello,

I want to adapt the STGSH50M120D to the circuit I already have working, but I have a question about pins K1 and K2. Will there be any problem with the STGSH50M120D if I don't use K1 and K2, leaving them disconnected?

 

Diagram.jpg

 

1 ACCEPTED SOLUTION

Accepted Solutions
Peter BENSCH
ST Employee

Welcome @AlbertoAbbolli, to the community!

The pins marked K are the so-called Kelvin pins usually used for four-terminal sensing. You do not have to use them, but then you lose the main advantage  – the ability to avoid voltage drop at the connection between the pin and the internal silicon. This is not a problem at small currents, but it certainly is at full capacity with the possible pulse of 240A of this module.

Does this answer your question?

Regards
/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

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2 REPLIES 2
Peter BENSCH
ST Employee

Welcome @AlbertoAbbolli, to the community!

The pins marked K are the so-called Kelvin pins usually used for four-terminal sensing. You do not have to use them, but then you lose the main advantage  – the ability to avoid voltage drop at the connection between the pin and the internal silicon. This is not a problem at small currents, but it certainly is at full capacity with the possible pulse of 240A of this module.

Does this answer your question?

Regards
/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
AlbertoAbbolli
Associate

Yes, thanks you so much!