CSD87350Q5D: OCP limits

Part Number:CSD87350Q5D

Hello team,

We are using the CSD87350 in a POL application along with the LM27403 controller. We need to characterize the resistance the half-bridge has between the TGR sense point and the SW node.

We are implementing Inductor DCR sense for over-current protection and have tied one side of our sense network to the TGR node and the other to the inductor output per an app note in the LM27403 datasheet. Lab measurements are giving us OCP limits that suggest an extra 500uOhms. Is this accurate? Do you have any data on this – perhaps over temperature?

Thanks for your support!

-mike