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KUOWENYUNG
Level 3
Level 3
25 replies posted 100 sign-ins 50 sign-ins

Dear IFXer,

 

the RC type IGBT, is all monolithic body diode building in Infineon IGBT?

May I know what is the single pulse width of the diode pulse current condition?

May I know what is the diode and IGBT power dissipation in RC-type? And they are use the same RJC to calculate the PD, right?  

PDmax (IF*VFD@175) < (Tvj – Ta) / RJA

PDmax (IC*VCE@175) < (Tvj – Ta) / RJA

https://www.infineon.com/dgdl/Infineon-IHW30N160R5-DataSheet-v01_01-EN.pdf?fileId=5546d462677d0f4601...

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Rachel_G
Moderator
Moderator
Moderator
50 likes received 250 solutions authored 250 replies posted

Dear  , 

1. Please refer to the datasheet for RC type IGBT such as the following shown:

Rachel_Gao_0-1681177321866.png

2. The pulse current is broadly limited by power loss in the device which eventually increases the chip temperature (Tj)and destroys the bond wire. So, Tj is the only main parameter which limits the pulse current. Not the pulse width. tp can be calculated based on losses P =ΔT/Rthjc, ΔT = Tvjop,max – Th, and Rthjc based on the reference value in the datasheet.

3.Share you an AN for reference about IGBT and free-wheeling diode power loss calculation as attached.

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Rachel_G
Moderator
Moderator
Moderator
50 likes received 250 solutions authored 250 replies posted

Dear  , 

1. Please refer to the datasheet for RC type IGBT such as the following shown:

Rachel_Gao_0-1681177321866.png

2. The pulse current is broadly limited by power loss in the device which eventually increases the chip temperature (Tj)and destroys the bond wire. So, Tj is the only main parameter which limits the pulse current. Not the pulse width. tp can be calculated based on losses P =ΔT/Rthjc, ΔT = Tvjop,max – Th, and Rthjc based on the reference value in the datasheet.

3.Share you an AN for reference about IGBT and free-wheeling diode power loss calculation as attached.

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