The AVR_RDY and BVR_RDY pins are used to signal to the system, when each channel is in regulation. These pins are open drain structures, and require external pull-up resistors. During boot-up, the VR_RDY pins are released when the internal reference DAC reaches the boot voltage. Any condition which causes the channel to stop converting power, causes its VR_RDY pin to pull low. This includes any fault protection-related shutdown, or the channel simply being disabled. The VR_RDY pins do not assert to alert the host to any warning conditions or faults configured to be ignored. The VR_RDY pins de-assert at the beginning of the TOFF_DELAY time, when soft-off is used.