In the event of a short circuit on the load side, it is critical to disconnect the FETs as soon as the fault occurs to protect the downstream components as well as to avoid any damage in the system. TPS4810-Q1 and TPS1210-Q1 devices provides a robust short circuit protection.

The CS+ and the CS- pins are used to sense the load current flowing in the system either by connecting a very small sense resistor or through FET VDS sensing. The device supports various current sense configurations as shown in below application diagrams.

Figure 3-3 High-Side Rsense Based Current Sensing

Figure 3-5 High-Side MOSFET VDS Based Current Sensing

Figure 3-4 Low-Side Current Sensing

Figure 3-6 Without Current Sensing