Use the following instructions to measure the inrush current during Hot-Plug event:

1. Set Jumper J3 position to desired slew rate as mentioned in Table 4-3.
2. Set the input supply voltage VIN to 5 V and current limit of 10 A.
3. Connect the supply between VIN and PGND points of connector J1. Enable the power supply.
4. Observe the waveform at VOUT (TP2) and input current with an oscilloscope to measure the slew rate and rise time of the eFuse with a given input voltage of 5 V.

Figure 5-2 and Figure 5-3 shows example of inrush current captured on the TPS25210EVM eFuse Evaluation Board.

Figure 5-2 TPS25210x Start Up with Enable at VIN = 5 V, Cout = 220 uF, CdVdT = OPEN

Figure 5-3 TPS25210x Inrush Current with Capacitive Load at VIN = 5 V, Cout = 690 uF, CdVdT = 3300 pF