Charger = off, OTG = off, buck = off, boost = off.
The QBATT switch is on to allow the battery to support the system. BYP may or may not be biased based on the CHGIN availability.
Charger = off, OTG = off, buck = on, boost = off.
When there is a valid input, the buck converter regulates the system voltage to be the maximum of (Vminsys and VBATT +4%).
VBYP is equal to VCHGIN minus the resistive drops.
Charger = on, OTG = off, buck = on, boost = off.
When there is a valid input, the battery is charging. VSYS is the larger of VSYSMIN and ~VBATT + IBATT x RBAT2SYS.
VBYP is equal to VCHGIN minus the resistive drops.
Charger = off, OTG = off, buck = off, boost = on.
The QBATT switch is on to allow the battery to support the system, the charger’s DC-DC operates as a boost converter.
BYP voltage is regulated to VBYPSET. QCHGIN is off.
Charger = off, OTG = on, buck = off, boost = on.
The QBATT switch is on to allow the battery to support the system, the charger’s DC-DC operates as a boost converter.
BYP voltage is regulated to VBYPSET. QCHGIN is on allowing it to source current up to ICHGIN.OTG.LIM.