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???
01/29/10 23:11
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#172791 - no AC protection
Responding to: ???'s previous message
In datasheet isnt specified minimum input voltage in "Absolute Maximum ratings" , but i doubt it can be negative. On other hand 120VAC is far above maximum input voltage , when AC is in positive half period.
So diode against negative voltage and/or additional overvoltage protection (which can protect against negative voltage) are needed.

List of 12 messages in thread
TopicAuthorDate
LM2574-5 AC voltage protection            01/01/70 00:00      
   of course not            01/01/70 00:00      
   no AC protection            01/01/70 00:00      
      Thank you both            01/01/70 00:00      
         fire brigade            01/01/70 00:00      
            suggestions?            01/01/70 00:00      
               something like this            01/01/70 00:00      
               already made            01/01/70 00:00      
                  just one more thing            01/01/70 00:00      
                  thank you            01/01/70 00:00      
                     It is very difficult...            01/01/70 00:00      
                     very small components are not recommended            01/01/70 00:00      

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