Use the following instructions to perform overvoltage protection test:

1. Place jumper J4 in suitable position to set required overvoltage clamp voltage as per Table 4-3.
2. Set the input supply voltage VIN to 5 V (Jumper J4 is open) or 3.3 V (Jumper J4 is shorted) and current limit of 10 A. Apply the supply between VIN and PGND at connector J1 and enable the power supply.
3. Increase the input supply VIN from 5 V to 8V (Junper J4 is open) or from 3.3 V to 6 V (Jumper J4 is shorted) and observe the waveforms using an oscilloscope.

Figure 5-7 and Figure 5-8 shows over voltage response on TPS25210EVM eFuse Evaluation Board.

Figure 5-7 Over Voltage Protection Response of TPS25210x Device at ROVCSEL = OPEN, Cout = 220 μF, Iout = 150 mA, VIN ramped up from 5 V to 8 V

Figure 5-8 Over Voltage Protection Response of TPS25210x Device at ROVCSEL = 0 Ω, Cout = 220 μF, Iout = 120 mA, VIN ramped up from 3.3 V to 6 V