The TPS259240DRCR is an electronic fuse (eFuse) integrating a BFET driver and current-limiting control in a single 10-VSON package.
Current-limit accuracy and thermal budget
The current-limit threshold is specified at ±8% accuracy. For a 5 A design target, the actual trip point can fall between 4.6 A and 5.4 A — the downstream load and PCB trace sizing must tolerate this window without nuisance tripping or exceeding the copper rating. Layout must connect the pad to a sufficient ground-plane area to keep the junction below the 85°C ambient ceiling across the full load range.