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LM5118-Q1: current limit at boost mode and the password for calculator tool

Paul Kim
Intellectual 1430 points
Part Number: LM5118-Q1
Other Parts Discussed in Thread: LM5118

Hi Team

I have two questions as below.

[1] at boost mode, how LM5118 can measure the current for a current limit ?

     I think there should be no current flowing across Rsense at boost mode.

[2] I downloaded "LM5118 Quick Start Component Calculator(snvu065a).EXCEL tool".

     I like to see some equations on it, but cannot see them due to Password protected.

    may I know the Password ?

  • 0
    TI__Guru 68705 points
    It is buck mode or buck-boost mode. there is no pure boost mode. We cannot disclose the password on the website for security reasons. The calculator basically follow the design guideline equations presented in the datasheet. We can ask our engineer to send you an unprotected copy of the calculator if you wish, but the datasheed equations are more direct and obvious.
  • 0
    TI__Guru 68705 points
    Forgot to mention: please email to Garrett Roecker to obtain an unprotected calculator spreadsheet.