SLVSDA7E February 2017 – August 2019 TPS61178
In addition to the cycle-by-cycle current limiting, the TPS61178x also has the output short protection. If the inductor current reaches the short protection limit threshold (typical 20A ) or the output voltage drops below 30% (typical) of the normal output voltage, the device enters into the hiccup protection mode. In the hiccup mode, the device shuts down itself and restarts after 90ms (typical) waiting time which helps to reduce the total thermal dissipation. After the short condition releases, the device can recover automatically and restart the start-up phase. The hiccup protection scheme is illustrated in Figure 20.