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User17687
Level 1
Level 1
5 questions asked First question asked First reply posted
Hi,

the title already reveals what my question is about:

What are the advantages of the 4 pin over the 3 pin device? Why does an aux. Source connection help?

Thanks in advance!
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å__å__
Moderator
Moderator
Moderator
First like received Welcome! First question asked
4 pin have an aux. Source connection could help to improve the switching efficiency ,the turn on loss is around 60%~70% , tun off loss is around 80% when compare with 3pin.
It is also good for the parallel usage.The separate Kevin Pin sperate itself with the E pin which conducting the high current ,without the attenuation of the gate voltage coming from the power emitter, the switching of the IGBT becomes faster than in the standard TO-247 package.

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1 Reply
å__å__
Moderator
Moderator
Moderator
First like received Welcome! First question asked
4 pin have an aux. Source connection could help to improve the switching efficiency ,the turn on loss is around 60%~70% , tun off loss is around 80% when compare with 3pin.
It is also good for the parallel usage.The separate Kevin Pin sperate itself with the E pin which conducting the high current ,without the attenuation of the gate voltage coming from the power emitter, the switching of the IGBT becomes faster than in the standard TO-247 package.
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