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TPS552872: Internal currentsense bidirectional or unidirectional?

Part Number: TPS552872

Hi, In the TPS552872 is the internal current sense bidirectional? I have used the IC for bidirectional current flow and it has no problem at all regulating it. Therefore I have assumed that the internal current sense is bidirectional is that correct? If this is the case would it be possible to use this IC as a current source if the FB pin and COMP pins are tied together using the Vref as a Iset value? What would in this case be the zero current setvalue? 

Sincerely Anton