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LDC0851: Datasheet error: OUT state is conflicting between Lsense and Lref value.

Peter Hoang
Prodigy 40 points
Part Number: LDC0851

There seems to be an error in the datasheet.  The third sentence of 8.1 Overview is conflicting:

"The push/pull output (OUT) switches low when the sense inductance drops below the reference and returns high when the reference inductance is higher than the sense inductance."

In the that statement, OUT = Low when Lsense < Lref, and OUT = High when Lref > Lsense.

Should it be this instead:  OUT = Low when Lsense < Lref, and OUT = High when Lref < Lsense

Thanks,

Peter.

  • 0
    TI__Mastermind 18545 points

    Hello Peter, 

    Thank you for pointing this out. The sentence should read as follows: 

    "The push/pull output (OUT) switches low when the sense inductance drops below the reference and returns high when the sense inductance is higher than the reference inductance."

    In other words:

    output is high when Ls > Lr

    output is low when Ls < Lr

    This is also illustrated in figure 17 of the datasheet: 

    Best Regards, 
    Justin Beigel