Hello
I need the temperature derating curves for Junction temperature.
The data sheet only contains Ambient temperature information.
Regards.
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Hello
I need the temperature derating curves for Junction temperature.
The data sheet only contains Ambient temperature information.
Regards.
Hi Louis,
I believe that reference is to the ambient temperature SOA curve in the datasheet. If you don't know already there is an existing equation to calculate junction temperature as follows: Tj = Ta + Pd * thetaJA
We don't have a derating curve of Tj shown since it would be more applicable to customers reading the datasheet to see the derating ambient temperature curve vs. loading current. This allows the customer to quickly understand what ambient temperature they can have operate the device at under certain loads. The SOA curve implies that at Ta = 85 degC, you can load up to the maximum without violating the 125degC operating junction temperature.
Regards,
Jimmy