The slew rate control function can control the rise of the output voltage with an external capacitor.
The inside of the red frame in the left figure is the external capacitor CdVdT.
By changing this value, the rising slew rate of the output voltage can be adjusted.
The capacitance of the external capacitor CdVdT and the rise time tdV / dT of the output voltage can be expressed by the formula on the upper right.
The graph on the right shows the above relationship.
From this graph, the horizontal axis shows that the larger the capacitance, the slower the rising tdV / dT of the output voltage on the vertical axis. The rush current can also be reduced by slowly rising this output voltage.
In the configuration with discrete parts, it was necessary to change various constants such as gate voltage, current adjustment, gate capacitance value, etc. to change the slew rate, but with the eFuse IC, the slew rate can be adjusted with a single small capacitor.