Three possible overload conditions can occur for the TPS2061, TPS2062, TPS2065 and TPS2066. In the first condition, the output has been shorted before the device is enabled or before V_I(IN) has been applied (see Figure 6-15 through Figure 6-18). The TPS20xx 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 may flow for a short period of time before the current-limit circuit can react. After the short-circuit output current threshold (I_OS) is reached, the device switches into constant-current mode.

In the third condition, the load has been gradually increased beyond the recommended operating current. After the short-circuit output current threshold (I_OS) is reached, the device switches into constant-current mode.