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BQ24038 Battery cut off Voltage

Other Parts Discussed in Thread: BQ24038

Does the BQ24038 have a battery cut off feature that disconnects the load from the Li-Ion battery when/if the battery voltage drops below a level (i.e. 2.7V) that woudl cause damage in the cell? I saw no mention of this feature in the data sheet but it's a long document and I could have missed it.  

On a more general note, why is this feature seemingly not included in most of the Li-Ion charging circuits I see? From what I read, low voltage disconnect is an important feature to have in the care and feeding of a Li-Ion battery. I'd have thought that feature was standard in any Li-Ion charging device. 

Maybe it s assumed that the battery pack protection circuitry will handle this condition?

  • The bq2403x has a short-circuit protection circuitry that turns off the battery FET if the output drops 200 mV below the battery voltage. However, the charger does not have protection cuicuit for discharging battery. To protect the battery when discharging, a battery protection circuit/IC will be needed.