BQ2063_15 Datasheet, PDF (36/60 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
alarm bits (continued)
OVER_TEMP_ALARM bit is set when the bq2063 detects that the internal battery temperature is greater than
or equal to the MaxT limit. This bit is cleared when the internal temperature falls back into the acceptable range.
TERMINATE_DISCHARGE_ALARM bit is set when RM = 0, Voltage( ) ≤ EDV0, or the CVUV bit in Pack Status
is set indicating that a Li-Ion cell voltage has dropped below the limit programmed in Cell Under /Over Voltage.
The bit is cleared when Voltage( ) > EDV0, RM( ) > 0, and the CVUV bit is cleared.
REMAINING_CAPACITY_ALARM bit is set when the bq2063 detects that RemainingCapacity( ) is less than
that set by the RemainingCapacityAlarm( ) function. This bit is cleared when either the value set by the
RemainingCapacityAlarm( ) function is lower than the RemainingCapacity( ) or when the RemainingCapacity( )
is increased by charging.
REMAINING_TIME_ALARM bit is set when the bq2063 detects that the estimated remaining time at the present
discharge rate is less than that set by the RemainingTimeAlarm( ) function. This bit is cleared when either the
value set by the RemainingTimeAlarm( ) function is lower than the AverageTimeToEmpty( ) or when the
AverageTimeToEmpty( ) is increased by charging.
status bits
INITIALIZED bit is set when the bq2063 is has detected a valid load of EEPROM. It is cleared when the bq2063
detects an improper EEPROM load.
DISCHARGING bit is set when the bq2063 determines that the battery is not being charged. This is determined
by the detection of discharge activity or by the absence of charge activity for 22500/DigitalFilter (µV) seconds.
This bit is cleared when the bq2063 detects that the battery is being charged.
FULLY_CHARGED bit is set when the bq2063 detects a primary charge termination or an overcharged
condition. It is cleared when RelativeStateOfCharge( ) is less than or equal to the programmed Fully Charged
Clear % in EE 0x4c.
FULLY_DISCHARGED bit is set when Voltage( ) or VCELL is less than the EDV2 threshold and Current( ) <
OverloadCurrent or when RelativeStateOfCharge( ) < Battery Low %. This bit is cleared when
RelativeStateOfCharge( ) is greater than or equal to 20%.
error codes
ERROR CODES
OK
Busy
Reserved
Unsupported
AccessDenied
Over/Underflow
BadSize
UnknownError
DESCRIPTION
The bq2063 processed the function code without detecting any errors.
The bq2063 is unable to process the function code at this time.
The bq2063 detected an attempt to read or write to a function code reserved by this version of the specification.
The 2063 detected an attempt to access an unsupported optional manufacturer function code.
The bq2063 does not support this function code which is defined in this version of the specification.
The bq2063 detected an attempt to write to a read-only function code.
The bq2063 detected a data overflow or underflow.
The bq2063 detected an attempt to write to a function code with an incorrect data block.
The bq2063 detected an unidentifiable error.
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