BQ2063_15 Datasheet, PDF (32/60 Pages) Texas Instruments – SBS v1.1-COMPLIANT Li-ION GAS-GAUGE IC

bq2063
Not Recommended For New Designs
SBS v1.1ĆCOMPLIANT LiĆION GASĆGAUGE IC
WITH PROTECTOR INTERFACE
SLUS468E− MAY 2001 − REVISED APRIL 2002
command codes (continued)
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: Read Word
Output: Unsigned integer-percent of remaining capacity.
Units: %
Range: 0–100%
Granularity: 1%
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: Read Word
Output: Unsigned integer-percent of remaining capacity.
Units: %
Range: 0–100+%
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( ) CAPACITY_MODE bit.
Purpose: The RemainingCapacity( ) function returns the battery’s remaining capacity. This information is a
numeric indication of remaining charge or energy given by the Absolute or Relative StateOfCharge( ) functions
and may be in a better form for use by power management systems.
SMBus Protocol: Read Word
Output: Unsigned integer—remaining charge in mAh or 10 mWh.
Units
Range
Granularity
Accuracy
BATTERY MODES
CAPACITY_MODE
BIT = 0
CAPACITY_MODE
BIT = 1
mAh
10 mWh
0–65,535mAh
0–65,535 10 mWh
mAh
10 mWh
−0, +MaxError( ) _* FullCharageCapacity( )
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