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???
08/11/06 13:24
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#122040 - not so quickly, Holmes
Responding to: ???'s previous message
I just looked briefly into an older (August 2001) HIN23x (Intersil) datasheet, which says in a note for HIN232: "The V+ capacitor may be terminated to VCC or to GND."
To be absolutely honest, this note is absent in a newer version of the datasheet (July 13,2005).

Principially, the charge pump WILL (and DOES) work (even in the discrete version, even with "hand driven" switches) if you connect this capacitor to GND and WILL double the input voltage. The difference is in the currents flowing upon startup.

Jan Waclawek


List of 19 messages in thread
TopicAuthorDate
MAX232-alike pin 2 capacitor            01/01/70 00:00      
   elementary, my dear Watson            01/01/70 00:00      
      not so quickly, Holmes            01/01/70 00:00      
      Oi.            01/01/70 00:00      
         I sure can            01/01/70 00:00      
            cheating IS allowed            01/01/70 00:00      
               Jan please edit to this            01/01/70 00:00      
                  talking about cheating            01/01/70 00:00      
      Erik, you\'re going to regret having said that ...            01/01/70 00:00      
         I have done it for "is it there"            01/01/70 00:00      
   Jan, that\'s been in the datasheet since day 1            01/01/70 00:00      
      that was not max            01/01/70 00:00      
         You really do need to read the materials            01/01/70 00:00      
            OK, I will behave :-)            01/01/70 00:00      
   Different charge pumping methodes            01/01/70 00:00      
      misleading            01/01/70 00:00      
         Sure?            01/01/70 00:00      
            sure.            01/01/70 00:00      
               Was a typo            01/01/70 00:00      

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