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BQ27Z746: 的工作模式及退出方法的疑问

Part Number: BQ27Z746

1:If the battery is in the ‘SHIP’ mode and gets inserted into the device (the charger is not plugged into the device), my understanding that the battery may wake up, if the device leakage current (120uA - ?) produces voltage across the battery sense resistor > IWAKE and, if IWAKE is enabled.

 

2:If the battery is in the ‘SHELF’ mode and gets inserted into the device (the charger is not plugged into the device), my understanding that the battery will not wake up.

 

3:In order to wake up the battery from ‘SLEEP’ the device needs to be powered up or the charger needs to be connected – basically the exit from ‘SLEEP” is when the battery senses a current in any direction, which is > SleepCurrent.

 

4:In order to wake up the battery from ‘SHIP’ a command must be sent to the battery or the battery needs to sense a current in any direction, which produces voltage across the sense resistor > IWAKE, if IWAKE is enabled. 

 

5:In order to wake up the battery from ‘SHELF’ either a command must be sent to the battery or the battery needs to sense a charge voltage. We do not use the ENAB pin on -746. Actually, it needs to be pulled low in the schematic.