BQ27520-G2 Datasheet, PDF (39/47 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge With Integrated LDO

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bq27520-G2
SLUSAB7A – MARCH 2011 – REVISED AUGUST 2011
In the event that a previous DF write was interrupted by a power failure or reset during the DF write, an
additional 44ms max DF restore time is required to recover the data from a previously interrupted DF
write. In this power failure recovery case, the total I²C clock stretching is 116ms max.
Another case where I²C clock stretches is at the end of discharge. The update to the last discharge data
will go through the DF block update twice because two pages are used for the data storage. The clock
stretching in this case is 144ms max. This occurs if there has been a Ra table update during the
discharge.
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