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LM3754: Current limit resistor

Part Number: LM3754

Hello all,

I unclear about the setting of the current limit as explained in the DS.

On p.18 it explains that the current limit is determined by a current setting resistor between the ILIM and CSM pins. The current limit is then :

Value of the resistor * 94uA  or  Rlim= Current limit/94uA

 However on p. 29 it determines this current slightly differently:

 When using DCR sence (which I am) with Rs=0.52mohm.

 If we chose 34.5A current limit we now have :

 Rlim = 34.5A* 0.52mohm/ 94Ua.

 So could anyone please tell me what is Rs in this case and from where the Rs comes into this equation?

Thank you.

Kaustubh