Latch-off mode is active when the DELAY pin connects to GND through a capacitor. When a current limit is reached, the output current holds at the setting current, but latches off after a preset DELAY time (tdl1+ tdl2). tdl1 is the default delay time, and tdl2 is a configurable delay time set by a capacitor. Regardless of whether the current limit is removed or not, the output remains latched off. The output only recovers when IN is toggling
Auto-retry mode is active when the DELAY pin is externally pulled up. The pullup voltage must be higher than Vdl(th). When the current limit is reached, the output current holds at the setting current, but periodically turns on for thic(on) and turns off for thic(off). The device checks the current limit status at the falling edge of thic(on) clock. If current limit status is captured, the device shuts down for thic(off). If the current limit status is not captured because of the off window during the thermal conditions, the device keeps turning on for additional thic(on) or more until the current limit status is captured.
