BQ2063_15 Datasheet, PDF (29/60 Pages) Texas Instruments – SBS v1.1-COMPLIANT Li-ION GAS-GAUGE IC

Not Recommended For New Designs
bq2063
SBS v1.1ĆCOMPLIANT LiĆION GASĆGAUGE IC
WITH PROTECTOR INTERFACE
SLUS468E− MAY 2001 − REVISED APRIL 2002
AtRateTimeToFull( ) (0x05); [0x05] (continued)
Range: 0 to 65,534 min
Granularity: 2 min or better
Accuracy: ± MaxError( ) _* FullChargeCapacity( )/|AtRate( )|
Invalid Data Indication: 65,535 indicates the battery is not being charged.
AtRateTimeToEmpty( ) (0x06); [0x06]
Description: Returns the predicted remaining operating time if the battery is discharged at the AtRate( ) value.
Purpose: The AtRateTimeToEmpty( ) function is part of a two-function call-set used to determine the remaining
operating time at the AtRate( ) value. The bq2063 updates AtRateTimeToEmpty( ) within 1.3 seconds after the
SMBus Host sets the AtRate( ) value. If read before this delay, the command is No Acknowledged, and the error
code in BatteryStatus is set to not ready. The bq2063 automatically updates AtRateTimeToEmpty( ) based on
the AtRate( ) value every 20 seconds.
SMBus Protocol: Read Word
Output: Unsigned integer − estimated operating time left.
Units: minutes
Range: 0 to 65,534 min
Granularity: 2 min or better
Accuracy: -0,+MaxError( ) × FullChargeCapacity/|AtRate( )|
Invalid Data Indication: 65,535 indicates the battery is not being discharged.
AtRateOK( ) (0x07); [0x07]
Description: Returns a Boolean value that indicates whether or not the battery can deliver the AtRate( )value
of additional energy for 10 seconds (Boolean). If the AtRate value is zero or positive, the AtRateOK( ) function
ALWAYS returns true.
Purpose: The AtRateOK( ) function is part of a two-function call-set used by power management systems to
determine if the battery can safely supply enough energy for an additional load. The bq2063 updates
AtRateOK( ) within 1.3 seconds after the SMBus Host sets the AtRate( ) value. If read before this delay, the
command is No Acknowledged, and the error code in BatteryStatus is set to not ready. The bq2063
automatically updates AtRateOK( ) based on the At Rate( ) value every 20 seconds.
SMBus Protocol: Read Word
Output: Boolean—indicates if the battery can supply the additional energy requested.
Units: Boolean
Range: TRUE, FALSE
Granularity: not applicable
Accuracy: not applicable
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