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Is repetitive short circuit operation possible for IGBT?

Is repetitive short circuit operation possible for IGBT?

Infineon_Team
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Employee
50 replies posted 25 likes received 25 replies posted

A repetitive short circuit with repetition rate of typical switching frequencies (e.g. 10 kHz) is not allowed. After a short circuit, where the IGBT is in a desaturated mode with full working voltage across Vce and full short circuit current ISC, the IGBT internal junction is heated rapidly far beyond the maximum allowed temperature for switching operation Tvjop. After a short circuit it is mandatory to wait until the IGBT is internally cooled down to the allowed Tvjop area before normal switching operation is continued.

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