The PG_STAT bit goes to 1
to indicate a good input source
when:
- VVBUS above VVBUS_UVLO
- VVBUS above battery (not in sleep)
- VVBUS below VACOV threshold
- VVBUS above VPOORSRC (typical 3.8 V) when IBADSRC (typical 30 mA) current is applied (not a poor source)
- Completed Section 8.3.3.3