BQ27425-G2_15 Datasheet, PDF (15/39 Pages) Texas Instruments – Fuel Gauge With Integrated Sense Resistor

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bq27425-G2
SLUSB23B – OCTOBER 2012 – REVISED JUNE 2015
8.5 Programming
8.5.1 Standard Data Commands
The fuel gauge uses a series of 2-byte standard commands to enable system reading and writing of battery
information. Each standard command has an associated command-code pair, as indicated in Table 3. Because
each command consists of two bytes of data, two consecutive I²C transmissions must be executed both to
initiate the command function, and to read or write the corresponding two bytes of data. Additional options for
transferring data, such as spooling, are described in I²C Interface. Standard commands are accessible in
NORMAL operation. Read/Write permissions depend on the active access mode, SEALED or UNSEALED (for
details on the SEALED and UNSEALED states, see Access Modes.)
NOTE
Data values read by the host may be invalid during initialization for a period of up to 3
seconds.
NAME
Control( )
Temperature( )
Voltage( )
Flags( )
NominalAvailableCapacity( )
FullAvailableCapacity( )
RemainingCapacity( )
FullChargeCapacity( )
AverageCurrent( )
Debug1( )
AveragePower( )
StateOfCharge( )
IntTemperature( )
StateOfHealth( )
Debug2( )
Debug3( )
OperationConfiguration( )
DesignCapacity( )
Table 3. Standard Commands
CNTL
TEMP
VOLT
FLAGS
RM
FCC
SOC
SOH
OpConfig
COMMAND
CODE
0x00 and 0x01
0x02 and 0x03
0x04 and 0x05
0x06 and 0x07
0x08 and 0x09
0x0A and 0x0B
0x0C and 0x0D
0x0E and 0x0F
0x10 and 0x11
0x16 and 0x17
0x18 and 0x19
0x1C and 0x1D
0x1E and 0x1F
0x20 and 0x21
0x2C and 0x2D
0x32 and 0x33
0x3A and 0x3B
0x3C and 0x3D
UNIT
NA
0.1°K
mV
NA
mAh
mAh
mAh
mAh
mA
num
mW
%
0.1°K
%
num
num
NA
mAh
SEALED ACCESS
RW
RW
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
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