Estimation of chip temperature via NTC

Nico

Hello,

I have another question regarding the Wolfspeed Modules CAB320M17XM3.

We did some tests with the module and are so far happy with the performance. However, one question regarding the temperature measurement came up. The NTC is sitting next to the low-side MOSFETs. So, naturally there is a temperature difference that can be measured, when the current direction is reversed (for example in a DCDC converter, where in the boost direction the low-side MOSEFT is the active device and in the buck-direction the high-side MOSFET is the active device). Now we are looking for more information on the temperature difference between the two sides.

Additionally, we are interested in understanding the measured temperature by the NTC vs. the actual junction temperature. Do you have a value or a thermal network that you could share, that we could implement in the temperature measurements?

Thanks in advance for your help!

Best regards,

Nico