TIDUF04 December 2022
The TPS25947xx family of eFuses is a highly integrated circuit protection and power management design in a small package. The devices provide multiple protection modes using very few external components and are a robust defense against overloads, short-circuits, voltage surges, reverse polarity and excessive inrush current. With integrated back-to-back FETs, reverse current flow from output to input is blocked at all times, making the devices a good choice for power MUX and ORing applications as well as systems which need load side energy hold up storage in case input power supply fails. The devices use linear ORing based scheme to make sure almost zero DC reverse current and emulate the best diode behavior with minimum forward voltage drop and power dissipation.