| ??? 01/13/09 08:08 Read: times |
#161475 - The webpage accepts Responding to: ???'s previous message |
Kai Klaas said:
Ap said:
Where did you get those MTBF figures I searched the site but couldnt find. "Quality & Reliability" section of their website: http://www.analog.com/en/corpor...index.html Ap said:
I want a hint as to how this is done "Using the Arrhenius equation again translates this to a MTBF of 393,067,365 hours at 85°C die temperature"? "Wafer fabrication data" gives the MTBF at 55°C. To calculate the MTBF at 85°C just put Tu = 273K + 55K and Ts = 273K + 85K into the Arrhenius equation. Kai The webpage accepts the temperature values and provides the MTBF, its ok . Arrhenius Equation seems to provide the Acceleration Factor . Now how is the MTBF figure is linked to the Equation's AF, I am a bit confused. -Ap |
| Topic | Author | Date |
| Thermal stress reduction for IC | 01/01/70 00:00 | |
| Ask the manufacturer! | 01/01/70 00:00 | |
| Wear from temperature cycling | 01/01/70 00:00 | |
| loose vs lose | 01/01/70 00:00 | |
| What's the rated MTBF? | 01/01/70 00:00 | |
| The temperature may rise | 01/01/70 00:00 | |
| automotive grade is 125C | 01/01/70 00:00 | |
| You should have mentioned 150C | 01/01/70 00:00 | |
| Why does it rise? | 01/01/70 00:00 | |
| Though its able | 01/01/70 00:00 | |
| Sounds unlikely to me | 01/01/70 00:00 | |
| You need to consume power to be able to save power | 01/01/70 00:00 | |
| Why not having some numbers? | 01/01/70 00:00 | |
| Power dissipation | 01/01/70 00:00 | |
| Not 1.4W at 85C but 1.2-0.24 = 0.96W | 01/01/70 00:00 | |
| figure 1.4W | 01/01/70 00:00 | |
| Reversed logic | 01/01/70 00:00 | |
| Agreed | 01/01/70 00:00 | |
| Answers | 01/01/70 00:00 | |
| The webpage accepts | 01/01/70 00:00 | |
| Useful links... | 01/01/70 00:00 | |
| Tjmax | 01/01/70 00:00 | |
| Please read the datasheet again, carefully! | 01/01/70 00:00 | |
Not Obsession only info | 01/01/70 00:00 |