The LTC2950/51/52 also have a failsafe feature in case the microprocessor fails to respond with a KILL signal. The third column, Automatic Shut Down After Interrupt, represents the exact amount of time given to a system before a system shutdown is forced by pulling enable low after a valid interrupt has been generated. This time can be adjusted on the LTC2951 and LTC2952 by using an external capacitor, while the LTC2950 is fixed at 1024ms.