What happens after the overcurrent protection of the eFuse IC is activated and the IC is turned off?

The users can select the appropriate one from the two options depending on system requirements. The following two figures are timing charts showing the auto retry type and latch type of the TCKE8 series as examples. For further details, please refer to the datasheet.

Auto-Retry Type
Limits the current that flows through eFuse IC to the inside MOSFET by I_LIM when the current exceeds the overcurrent limit I_LIM. At this time, eFuse IC occurs power loss P_D= (V_IN - V_OUT)×I_LIM and the junction temperature rises, thus moves to thermal shutdown operation and turns off MOSFET.
After MOSFET turns off, junction temperature become lowers, then MOSFET turns on again. If the overcurrent condition is not resolved, ILIM limits the current and then performs the thermal shutdown operation again. (Figure 1)

Latch Type
Like the auto-retry type, after limiting the current flowing through MOSFET when an overcurrent occurs with the current determined by I_LIM, eFuse IC moves to thermal shutdown and turns off MOSFET. The latch type keeps MOSFET off.
To release the latch state, after the overcurrent state is resolved, set the voltage of the EN / UVLO pin to the “L” level and then set it to the “H” level again. (Figure 2)