ZHCSI09S June 2010 – August 2018 TPS65911
The PWRON input is connected to an external button. If the device is in the OFF or SLEEP state, a debounced falling edge (PWRON input low for minimum of 100 ms) causes an OFF-to-ACTIVE state or a SLEEP-to-ACTIVE state transition of the device. If the device is in active mode, then a low level on this signal generates an interrupt. If the PWRON signal is low for more than the PWON_TO_OFF_DELAY delay and the corresponding interrupt is not acknowledged by the processor within 1 second, the device goes into the OFF state. For PWRON behavior, see Figure 5-2 and Figure 5-3.