SNAS660D June 2015 – May 2021 LM53600-Q1 , LM53601-Q1
PRODUCTION DATA
In order to prevent excessive heating and power consumption under sustained short circuit conditions, a hiccup mode is included. If an over current condition is maintained, the LM53600-Q1 or LM53601-Q1 device shuts off its output and waits for tW (approximately 4.5 ms), after which the LM53600-Q1 or LM53601-Q1 restarts operation beginning by activating soft start.
Figure 8-4 shows hiccup mode operation: The switch node of the LM53600-Q1 LM53601-Q1 is high impedance after a short circuit or over current persists for a short duration. Periodically, the LM53600-Q1 or LM53601-Q1 attempts to restart. If the short has been removed before one of these restart attempts, the LM53600-Q1 or LM53601-Q1 operates normally.