Texas Instruments TPS25927x 18V eFuses Texas Instruments TPS25927x 18V eFuses are a highly integrated circuit protection and power management solution in a tiny package. These devices use few external components and provide multiple protection modes. They are a robust defense against overloads, shorts circuits, voltage surges, excessive inrush current, and reverse current. The current limit level can be set with a single external resistor. Over voltage events are limited by internal clamping circuits to a safe fixed maximum, with no external components required. Applications with particular voltage ramp requirements can set dV/dT with a single capacitor to ensure proper output ramp rates.