SN65DSI84: Document for Tj

Hi Len,

What specific information about Tj are they looking for? There is thermal information for this device available in the Thermal Information section of the datasheet.

Regards,

I.K. 

Hi I.K,

Thanks for your reply.

For now they have Tc and Ta information from datasheet.

And they want to know the range about Junction Temp, is there any information or formula for this?

Best regards,

Len

Hi I.K,

Thanks for your reply.

The customer feedback that they had used many ICs and they observed that most of Tj and Tc have around 3+ degree deviation (Tj > Tc around 3C degree or above)

But in this case, it’s only 0.7C degree higher. Is that right?

If the following formula is TI chip standard?

Hi I.K,

Thanks again for your reply and suggestion.

And I got some feedback from the customer, the link you provide is TS5A21366, and the information could be understand.

But the material can't be meet to SN65DSI84 SPEC

He only found Vmax (Vcc), & RꙨJa in datasheet , and he also question about VCC unit, he thinks it's too much.

And why TS5A21366's Ta = 85C Tj = 113.3C (it make sense), but SN65DSI84's range is so small?

Best regards,

Len