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TPS4800-Q1: Short circuit current set

Anoop kumar N
Intellectual 998 points
Part Number: TPS4800-Q1

Tool/software:

Hello team 

for setting a Isc of 15A with sensing resistor of 2m ohms, RISC is coming around 5.5k, but the evaluation board having 10k, Why this much of variation ?

  • +1
    TI__Mastermind 34985 points

    Anoop,

    The pink labels on the EVM are incorrect. The formula, for preproduction silicon that is not longer available, had 10mV as the constant voltage offset in the equation. While we updated the datasheet to reflect the new current limit values, the new values in the EVM should be 9.5A, 14.2A, and 19.5A. We are working on updating the EVM documentation now. 

    Best Regards,
    Tim