Use the following instructions to observe the transient overload performance:
Configure the Jumper J3 to an appropriate position to obtain required overcurrent blanking period (tTIMER) as per Table 4-3.
Configure the Jumper J6 position to desired reference voltage for overcurrent protection and active current sharing as mentioned in Table 4-3.
Configure the Jumper J4 in a suitable position to set required circuit breaker threshold (IOCP) as per Table 4-3.
Set the input supply voltage VIN to 12-V and current limit of 200-A.
Connect the power supply between VIN (Connector T1) & PGND (Connector T3) and enable the power supply.
Now apply an overload in the range of IOCP < ILOAD < 2 × IOCP between VOUT (Connector T2) and PGND (Connector T3) for a time duration less than tTIMER decided by using jumper J3.
Observe the waveforms using an oscilloscope.
Figure 5-10 shows transient overload performance of TPS25985 eFuse on TPS25985EVM eFuse Evaluation Board with two (2) devices in parallel.
Figure 5-10 Transient Overload Performance of TPS25985 eFuse (VIN = 12 V, CITIMER = 22 nF, COUT = 470 μF, RIMON = 1.1 ∥ 1.1 kΩ, RIREF = 40.2 kΩ, IOUT Ramped from 100 A to 175 A then 100 A within 10 ms)