BQ2060SS Datasheet, PDF (28/59 Pages) Texas Instruments – SBS V1.1-COMPLIANT GAS GAUGE IC

bq2060
SLUS035E – JANUARY 2000 – REVISED OCTOBER 2005
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the state of charge and second, to give the power management system information about how
aggressive it should be, particularly as the battery nears the end of its life.
SMBus PROTOCOL ReadWord
OUTPUT
Unsigned integer—percent uncertainty for selected information.
Units: %
Range: 2% to 100%
Granularity: 1%
Accuracy: not applicable
RelativeStateOfCharge() (0x0d); [0x0d]
DESCRIPTION
Returns the predicted remaining battery capacity expressed as a percentage of
FullChargeCapacity() (%).
PURPOSE
The RelativeStateOfCharge() function is used to estimate the amount of charge remaining in the
battery relative to the last learned capacity.
SMBus PROTOCOL ReadWord
OUTPUT
Unsigned integer—percent of remaining capacity.
Units: %
Granularity: 1%
Range: 0 to 100%
Accuracy: –0, +MaxError()
AbsoluteStateOfCharge()(0x0e); [0x0e]
DESCRIPTION
Returns the predicted remaining battery capacity expressed as a percentage of DesignCapacity()
(%). Note that AbsoluteStateOfCharge() can return values greater than 100%.
PURPOSE
The AbsoluteStateOfCharge() function is used to estimate the amount of charge remaining in the
battery relative to the nominal or DesignCapacity().
SMBUS PROTOCOL ReadWord
OUTPUT
Unsigned integer—percent of remaining capacity.
Units: %
Range: 0% to 100+%
Granularity: 1%
Accuracy: –0, +MaxError()
RemainingCapacity() (0x0f); [0x0f]
DESCRIPTION
Returns the predicted charge or energy remaining in the battery. The RemainingCapacity() value is
expressed in either charge (mAh at a C/5 discharge rate) or energy 10 mWh at a P/5 discharge
rate) depending on the setting of the BatteryMode()’s CAPACITY_MODE bit.
PURPOSE
The RemainingCapacity() function returns the battery’s remaining capacity. This information is a
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