BQ27741-G1_14 Datasheet, PDF (20/39 Pages) Texas Instruments – Single Cell Li-Ion Battery Fuel Gauge with Integrated Protection

bq27741-G1
SLUSBF2 – JULY 2013
DATA COMMANDS
www.ti.com
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 4. Each
protocol has specific means to access the data at each Command Code. Data RAM is updated and read by the
gauge only once per second. Standard commands are accessible in NORMAL operation mode.
Control( )
AtRate( )
UnfilteredSOC()
Temperature( )
Voltage( )
Flags( )
NomAvailableCapacity( )
FullAvailableCapacity( )
RemainingCapacity( )
FullChargeCapacity( )
AverageCurrent( )
TimeToEmpty( )
FilteredFCC()
StandbyCurrent( )
UnfilteredFCC()
MaxLoadCurrent( )
UnfilteredRM()
FilteredRM()
AveragePower( )
InternalTemperature( )
CycleCount( )
StateOfCharge( )
StateOfHealth( )
PassedCharge( )
DOD0( )
SelfDischargeCurrent()
NAME
Table 4. Standard Commands
CNTL
AR
UFSOC
TEMP
VOLT
FLAGS
NAC
FAC
RM
FCC
AI
TTE
FFCC
SI
UFFCC
MLI
UFRM
FRM
AP
INTTEMP
CC
SOC
SOH
PCHG
DOD0
SDSG
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
0x12 and 0x13
0x14 and 0x15
0x16 and 0x17
0x18 and 0x19
0x1A and 0x1B
0x1C and 0x1D
0x1E and 0x1F
0x20 and 0x21
0x22 and 0x23
0x24 and 0x25
0x28 and 0x29
0x2A and 0x2B
0x2C and 0x2D
0x2E and 0x2F
0x34 and 0x35
0x36 and 0x37
0x38 and 0x39
UNIT
NA
mA
%
0.1°K
mV
NA
mAh
mAh
mAh
mAh
mA
minutes
mAh
mA
mAh
mA
mAh
mAh
mW or cW
0.1°K
Counts
%
% / num
mAh
hex#
mA
SEALED
ACCESS
RW
RW
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
20
Submit Documentation Feedback
Product Folder Links: bq27741-G1
Copyright © 2013, Texas Instruments Incorporated