| ??? 01/07/09 13:44 Read: times |
#161360 - You need to consume power to be able to save power Responding to: ???'s previous message |
Yes, I agree with Andy.
You either have a chip that consumes power. Then it will heat up when run. That means that you will perform a long-time temperature-cycling of the chip. Or you have a chip that consumes very little power. Then it will be close to the surounding temperatures with or without power. So you will not gain anything by cycling the power. The problem with for example a high-end PC processor is that it can consume huge amounts of power at very low voltages. This means that it runs very hot while at the same time pushing very high currents through all connections. High currents at high temperatures may result in electro-migration, which results in ageing of the traces on the wafer. But I don't believe that your chip is running at high currents. |
| 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 |