Other Parts Discussed in Thread: DP83826E
Hi team:
As check with the D/S via TI.com. it did mentioned about the Tj spec, but i found the answer via e2e as below reply: Max recommended Tj for the DP83826 is 110°C for the E version and 90°C for the I version.
But there are something want to double confirm is that the ambient temperature of I version can reach 85 degrees Celsius. Why is the T junction temperature only so low as 90 degrees Celsius? According to the thermal resistance of 52°C/W and the power consumption of 45mA & 0.148W, at an ambient temperature of 85°C, the junction temperature has exceeded 90°C, which is inconsistent with the specification that it can be used at an ambient temperature of 85°C.
Your comments will be very appreciate.
BTW, why the DP83826E and I version have such a big temperature difference? DIE reason or design margin?
