| Brian Reid 01/29/10 16:58 Read: 322 times |
#172789 - LM2574-5 AC voltage protection |
Hi all,
I am considering using an LM2574-5 for a board that will be powered by 24VDC supply voltage. In the application where this board will be used, it receives its 24VDC power through a 13 conductor collector ring/slip ring where both 120VAC and 480VAC voltages exist. If something goes horribly wrong in the collector ring, the switcher could potentially be exposed to these AC voltages. Does the LM2574-5 provide any sort of AC voltage protection? I have read the datasheet and can't find anything that says it does or does not. If it is exposed to AC voltage, what are the odds of those voltages making it through the switcher and onto the board? How can one protect the board and uC in this situation? Your advice is greatly appreciated. Brian |
| Topic | Author | Date |
| LM2574-5 AC voltage protection | Brian Reid | 01/29/10 16:58 |
| of course not | Erik Malund | 01/29/10 17:06 |
| no AC protection | Stefan KAnev | 01/29/10 17:11 |
| Thank you both | Brian Reid | 01/29/10 17:34 |
| fire brigade | Stefan KAnev | 01/29/10 17:40 |
| suggestions? | Brian Reid | 01/29/10 23:45 |
| something like this | Stefan KAnev | 01/30/10 04:27 |
| already made | Erik Malund | 01/30/10 07:29 |
| just one more thing | Erik Malund | 01/30/10 20:06 |
| thank you | Brian Reid | 01/31/10 15:31 |
| It is very difficult... | Kai Klaas | 01/31/10 16:23 |
very small components are not recommended | Erik Malund | 01/31/10 16:41 |