Texas Instruments TPS25982 Smart eFuse is a highly integrated circuit protection and power management solution, provided in a small 4mm x 4mm QFN package. The device provides an accurate load current monitor and adjustable transient fault management. The devices provide a robust defence against overloads, short-circuits, voltage surges, and excessive inrush current. Overvoltage events are limited by internal cutoff circuits with multiple device options to choose the overvoltage threshold.
Multiple device options exist to choose between the response to overcurrent conditions, circuit breaker, or active current limiter. A single external resistor can set the overcurrent limit and fast-trip (short-circuit) threshold. The device intelligently manages the overcurrent response by distinguishing between transient events and actual faults. This enables the system to function uninterrupted during line and load transients without compromising on the robustness of the protection against faults.
The devices are characterised for operation over a junction temperature range of –40C to +125C and operate over a wide input voltage range of 2.7V to 24V.