If you go slightly higher than that the part won't fail catastrophically.
Only you know what you saw in an undisclosed data sheet and so there can be no explanation.Same difference between air temperature and body temperature This measure includes clock speed reduction, clock gating, and clock stretching, all of which reduce core temperature. Hi. During operation, it is higher than the temperature of the part's exterior and the case temperature. Overall, ambient temperature (Ta) will dictate the minimum temperature in which a device operates. To know the junction temperature you need to know the ambient temperature and the various thermal resistances between the junction and ambient. smurfen on Dec 19, 2019 . Hi. These include the diffusion rate of Many semiconductors and their surrounding optics are small, making it difficult to measure junction temperature with direct methods such as Junction temperature may be measured indirectly using the device's inherent voltage/temperature dependency characteristic. Moreover, you can count yourself lucky if you have never experienced an engine overheating while driving down I-75 in Florida, during mid-summer. The LTC2000C has an upper limit for this at 70 °C. Active 3 years, 3 months ago. "-Exactly, that is what I meant when I wrote that the operating conditions shouldn't be listed under "ABSOLUTE MAXIMUM RATINGS".You are probably right. LTC2000 Operating Temperature vs Junction temperature So, to obtain an approximation of the (chip) junction temperature, we use the previously discussed equation: TJ = Ta + (PD x Rja).In electronics, all devices require power to operate. However, in datasheets I find two different temperature ranges.Operating temperature generally refers to the temperature of the environment. I know my comment is way late on this thread, but I would appreciate any comment of yours, anyway. Qja or Rthj-a or Theta-JA : 위 그림에 아주 잘 나와있다.. Ta : IC 주변 온도이다. The two temperature parameters I am referring to are ambient temperature and junction temperature or operating temperature.Firstly, ambient temperature refers to the temperature of the surrounding air or environment in which the device resides, while the device is on. The device will operate effectively within a specified temperature range which varies based on the device function and application context, and ranges from the minimum operating temperature to the maximum operating temperature (or peak operating temperature). Choose from one of our 12 newsletters that match your product area of interest, Various physical properties of semiconductor materials are temperature dependent. Temperature can cause mood swings, thoughts of relocation, and even joy. An operating temperature is the temperature at which an electrical or mechanical device operates. Moreover, For example, with PCs, the ambient temperature is a measure of the air temperature of the surrounding computer equipment. Operating temperature generally refers to the temperature of the environment. Is it due to packaging material tolerances, ie the black plastic enclosures and/or the bonding epoxy that holds the die to the package and/or something else? Keep the die lower than 70C with a heatsink or use a higher temperature grade.
If you…The 70C is referring to the temperature of the die. The actual temperature inside the chip depends on the ambient temperature, but also on the PCB's thermal properties and on the air flow. At 70C we guarantee that the part will meet its specs. 1 \$\begingroup\$ Why do so many IC's have a max temp range of 125C?