JAJSQM6B June 2023 – February 2024 BQ25622E
PRODUCTION DATA
The sleep comparator is used to suspend the converter if the adapter voltage is insufficient to maintain buck converter operation while charging the battery. If VVBUS falls below VBAT + VSLEEP , the converter stops switching, the PG pin transitions high, and VBUS_FAULT_STAT and VBUS_FAULT_FLAG are set to 1. If VVBUS rises back above VBAT + VSLEEPZ , the converter restarts, and the PG pin transitions low.
If VVBUS falls below VPOORSRC, the converter stops switching and the PG pin transitions high (if not already suspended and high due to the sleep comparator), and the VBUS_STAT transitions to 000 and the device transitions to battery-only mode. If VVBUS rises above VPOORSRC, it is a new adapter attach, and poor source qualification will be run in addition to D+/D- detection if enabled. VBUS_STAT and the PG pin state will be determined by the adapter attach sequence as outlined in Section 8.3.3.