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LM70880-Q1: LM70880-Q1 EVM current sense circuit

Hank Wang3
Prodigy 50 points
Part Number: LM70880-Q1

Tool/software:

Hi

I saw R12 and C22 on the current sense circuit from EVM as below.

What is the purpose of this circuit ?

Thanks

BR,

Hank

  • 0
    TI__Genius 11265 points

    Hi Hank,

    The resistor is for inductor current sensing that is utilized for Peak Current Mode Control. You can see that in the functional block diagram as well:

    The capacitor is just there for filtering. 

    Thanks,

    Best Regards,

    Taru