TPS2549-Q1: behavior of hot short condition

Hi, We need your help. I would appreciate it if you could give us your feedback.

Best Regards,

tateo

Hi,

When an overcurrent condition is detected, the device maintains a constant output current and reduces the output voltage accordingly. Two possible overload conditions can occur. In the first condition, the output is shorted before the device enables or before the application of V(IN). The TPS2549 device senses the short and immediately switches into a constant-current output. In the second condition, a short or an overload occurs while the device is enabled. At the instant the overload occurs, high currents flow for 2 μs (typical) before the current limit circuit reacts. The device operates in constant-current mode after the current-limit circuit has responded. Complete shutdown occurs only if the fault is presented long enough to activate over temperature protection. The device remains off until the junction temperature cools to approximately 20°C and then restarts. The device continues to cycle on and off until the overcurrent condition is removed.

Thank you for your reply.
Regarding your opinion, the IC is shutdown due to the thermal shutdown occurs. Is it right?

Best Regards,
tateo