STMicroelectronics AEK-POW-BMS63EN User Manual page 8

• A wakeup signal on communication or fault line can force the chip to stop balancing and then go back to
the normal state.
• An external fault must bring the device to the normal state and stop the balancing.
• As soon as the required balancing target stops, the end of balancing (EOB) bit is set to 1 and the chip
enters the sleep state.
If the Cyclic signal is raised, the device goes to the cyclic wakeup state, runs the diagnosis, and then resumes
silent balancing (if slp_bal_conf flag = 1).
1.3.2.5 Cyclic wakeup state
From both sleep and silent balancing states, the device moves periodically (once every t
cyclic wakeup state to monitor eventual faults.
The ADC must be on to check possible critical battery conditions. Any detected fault moves the device to the
normal state.
An on-demand operation is possible only once the device has moved to the normal state in case of any detected
fault.
Conditions to leave this state are:
• Any fault detected moves the device to the normal state.
• A wakeup from the fault line or communication line moves the device to the normal state if the defined
monitoring tasks are finished; the device can move to the sleep or silent balancing states automatically
based on the state before cyclic conversions (slp_bal_conf flag).
UM3185 - Rev 1
UM3185
Voltage operating range
) to the
CYCLIC_SLEEP
page 8/59