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TCAN1043-Q1: Question about INH floating condition and WAKE port termination

NOBUO FUJIHARA
Genius 9335 points
Part Number: TCAN1043-Q1

Hi Champs,

Q.1) My customer wont use WAKE port, and tied WAKE port directly to VSUP. Is there any concern with this termination?

Q.2) Customer wants to know the condition where INH gets floating while VSUP is supplied condition. Under VSUP supplied condition, does INH get floating only device is in SLEEP mode?

Best regards,

  • 0
    TI__Guru 74252 points

    Fujihara-san,

    1) If the WAKE port isn't going to be used, tying is directly to battery is the option with lower power consumption, so this works.

    2) That is correct. Sleep mode is the only mode where INH isn't high. In Normal, Standby, and Silent mode, INH is pulled-up to battery voltage.

    Regards,