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Forum TS5A3159 Überstrom
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TS5A3159 Überstrom

fischer@alluris.de
fischer@alluris.de over 10 years ago

Hi,

 

Ich habe den TS5A3159 im Einsatz, um die Versorgung einer Knopfzelle zuzuschalten abhängig dem Spannungsniveau der restlichen Schaltung.

In manchen Situationen passiert es, dass der Analogschalter etwa 100 mA von der Knopfzelle zieht (anstatt typ. 1-4 mA)

Hat jemand eine Idee, ob es sich hier um ein bekanntes Problem vom Analogschalter handeln könnte?

 

Hier der Schaltplan:

 

image

Im Fehlerfall liegt die Spannung am Goldcap höher als von der Knopfzelle. Pin6 vom Analogschalter hat 0V. Der hohe Strom kann insofern reproduziert werden, dass wenn ich den Analogschalter aus der Schaltung eliminiere und Pin1 und 4 verbinde, das Problem nicht mehr auftritt.

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  • element14support
    0 element14support over 10 years ago

    hallo

      Willkommen in der element14 Community, werde ich dies überPassivBereich zu bewegen, da es eine bessere Passform.

    Passive

     

    Danke,

     

     

    Jamie

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