TPS259250DRCT

The purpose of the TPS25925x/6x family of eFuses is to provide integrated circuit protection and power management in a tiny package. These devices offer robust defense against overloads, shorts circuits, voltage surges, excessive inrush current, and reverse current. They require few external components and offer multiple protection modes, making them suitable for various applications such as Hot-Swap and Power rail protection. The TPS25925x/6x eFuses operate within a voltage range of 4.5V to 18V with programmable current limit and undervoltage protection capabilities. They are designed to be a reliable solution for managing current, voltage, and start-up voltage ramp to a connected load.

The current limit level for the TPS25925x/eFuses can be set with a single external resistor, and the current limit set has a typical accuracy of ±15%. The current limit is set to IOL (over-load current limit) during normal operation. When power dissipation in the internal MOSFET exceeds 10W, there is a thermal foldback in the current limit value so that IOL drops to ISC. In each of these two modes, the MOSFET gate voltage is regulated to throttle short-circuit and overload current flowing to the load. Eventually, the device shuts down due to over temperature.

The TPS25925x/eFuses are typically used for Hot-Swap and Power rail protection applications. They operate from 4.5V to 18V with programmable current limit and undervoltage protection. These devices help control in-rush current, provide precise current limiting during overload conditions, and offer robust protection for systems such as Set-Top-Boxes, DTVs, Gaming Consoles, SSDs/HDDs, and Smart Meters. They also provide protection against multiple faults on the sub-system rail.