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LMR14206 current limit clarification

Eric Lai
Expert 4940 points
Other Parts Discussed in Thread: LMR14206

Hi Expert,

May we knnow why LMR14206 datasheet saying the "Current limit at 0% duty cycle" of page 4.

Pls comment.

Best regards,

Eric Lai

 

Field Application Engineer

Texas Instruments Taiwan Limited

O: +886-2-2175-2582

M: +886-909-262-582

E-Mail:Eric.Lai @ti.com

  • 0
    TI__Genius 16025 points
    We've received your query and will get back to you shortly.

    Thanks,
    Anston
  • 0
    TI__Mastermind 23845 points
    Hi Eric,

    It means that the current limit for the part is dependent on the duty cycle. Since internally, the current information is added with the sawtooth ramp generator before it is compared to the current limit value. The amount of ramp added is proportional to the duty cycle. During the test, the current limit measured at 0 % duty cycle means that the ramp added value is 0 and all the information is the current information.

    Thanks
    -Arief