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TPS7A47: Max value of Feedback pin current

Atsushi Takahashi
Intellectual 675 points
Part Number: TPS7A47

Hi Team,

Usage conditions: TPS7A4701, Vin=24V, Vout=22V

Max value spec of Feedback pin current(Ifb) is not defined in the data sheet.
What is the estimated max value spec at operating temp range(-40℃ to +125℃)?

Best Regards,

  • 0
    TI__Mastermind 38125 points

    Hi Atsushi-san,

    We do not have data for the max value of I_FB. It is recommended that you size the feedback resistors such that the ideal current flowing through them is at least 100 x I_FB. This will add enough margin that output accuracy is not effected by the non-ideal I_FB.

    Regards,

    Nick