Current Limit Solid State Power Switch with Latch

The project published here is a solid-state power switch with current limiting that prevents damage to host devices from faulty load conditions. This analog current limit switch has low on-resistance P-channel MOSFET and INA202 driver IC from Texas Instrument. The project operates from input voltage in the range of 5V to 24V and can handle currents up to 2A. The versatile project can be used in Smart Power applications. It is widely used to clamp the overload current and deliver a constant current.