Interpreting Datasheets — Wolfspeed Power Applications Forum

[FAQ-ID-3] What are maximum ratings in a Datasheet?

TBhatia — Wed, 01 Mar 2023 17:50:20 +0000

• Typical testing condition is at 25ᵒC. The condition will be specified if it is different.

• Represent the maximum capability of the device.

• May cause damage if any of the parameter is exceeded.

• The design must guarantee no parameter is exceeded under worst case conditions.

• Always read the notes.

[FAQ-ID-2] Glossary of MOSFET datasheet parameters

TBhatia — Wed, 01 Mar 2023 17:33:23 +0000

The table summarizes the MOSFET datasheet parameters:

You can also refer to this article for more details on these parameters: Deciphering Data Sheets.

[FAQ-ID-1] What is the short circuit withstand time of the MOSFET specified ?

SiC_Power_Admin — Thu, 05 Aug 2021 18:03:54 +0000

The short circuit withstand time of a Silicon Carbide (SiC) MOSFET is dependent on the loop inductances on the PCB as well as the bus voltage. Generally the short cicuit withstand time becomes shorter as the bus voltage increases. Taking our C3M0032120K part as an example, its short-circuit withstand time drops from 9µs to 1.8µs at 25°C when the bus voltage increases from 400V to 800V with a loop inductance of 15nH.

Wolfspeed has worked with our gate driver partners to develop robust short-circuit protection circuits that can reliably detect a short-circuit condition and safely turn off the MOSFET before any damage occurs to the device.