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LM3643 [Control Truth Table]

T Kishi
Genius 4425 points

Hi

My customer has question.Please cooperate me.

For "Control Truth Table",

What is the difference between "Ext Torch " and "Standalone Torch "? Or "Ext Flash"and"Standalone Flash".

Best Regard 

T Kishi

  • 0
    TI__Intellectual 2140 points

    Hi,

    External mode means that only one of Torch or Strobe pins is enabled, Standalone means that they are both enabled.

    If only Torch or Strobe pin is enabled, you can start a Torch or Flash event by controlling the Torch or Strobe pin respectively, regardless of the status of the other pin.

    If both pins are enabled, you have to keep track of both the Torch and the Strobe pins; to perform a Torch event the Strobe pin must be low, to perform a Strobe event the Strobe pin must be high regardless of the status of the Torch pin (the Strobe event takes priority if both Torch and Strobe are high).

    I hope this makes sense