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TPS40195 ILIM

Andreas Kirchgraber
Intellectual 370 points

According to the datasheet the RDS(on) of the low-side MOSFET is used to calculate ISCP.

Why is in SwitcherPro R6 changing when I change the high-side MOSFET Q1?

Changing the low-side MOSFET Q2 doesn't affect R6 in SwitcherPro.

 

Best regards

Andreas

  • 0
    TI__Expert 3875 points

    Hi Andreas,

    Your observations are correct. R6 does appear to be a function of Q1 in SwitcherPro. As per data sheet, it should be a function of the low side MOSFET. I will follow-up with the system engineer for this part and request an enhancement to SwitcherPro.

    Thanks for identifying this issue.

    Regards,
    Michael
     

    -- 
    Michael Krasnicki
    Analog eLab
    Texas Instruments