BQ27541-V200_1007 Datasheet, PDF (9/43 Pages) Texas Instruments – Single Cell Li-Ion Battery Fuel Gauge for Battery Pack Integration

bq27541-V200
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DATA COMMANDS
SLUSA11 – FEBRUARY 2010
STANDARD DATA COMMANDS
The bq27541 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 1. Each
protocol has specific means to access the data at each Command Code. DataRAM is updated and read by the
gauge only once per second. Standard commands are accessible in NORMAL operation mode.
Control( )
AtRate( )
AtRateTimeToEmpty( )
Temperature( )
Voltage( )
Flags( )
NominalAvailableCapacity( )
FullAvailableCapacity( )
RemainingCapacity( )
FullChargeCapacity( )
AverageCurrent( )
TimeToEmpty( )
TimeToFull( )
StandbyCurrent( )
StandbyTimeToEmpty( )
MaxLoadCurrent( )
MaxLoadTimeToEmpty( )
AvailableEnergy( )
AveragePower( )
TTEatConstantPower( )
Internal_Temp( )
CycleCount( )
StateOfCharge( )
StateOfHealth( )
PassedCharge( )
DOD0( )
NAME
Table 1. Standard Commands
COMMAND CODE
CNTL
AR
ARTTE
TEMP
VOLT
FLAGS
NAC
FAC
RM
FCC
AI
TTE
TTF
SI
STTE
MLI
MLTTE
AE
AP
TTECP
INTTEMP
CC
SOC
SOH
PCHG
DOD0
0x00 / 0x01
0x02 / 0x03
0x04 / 0x05
0x06 / 0x07
0x08 / 0x09
0x0a / 0x0b
0x0c / 0x0d
0x0e / 0x0f
0x10 / 0x11
0x12 / 0x13
0x14 / 0x15
0x16 / 0x17
0x18 / 0x19
0x1a / 0x1b
0x1c / 0x1d
0x1e / 0x1f
0x20 / 0x21
0x22 / 0x23
0x24 / 0x25
0x26 / 0x27
0x28 / 0x29
0x2a / 0x2b
0x2c / 0x2d
0x2e / 0x2f
0x34 / 0x35
0x36 / 0x37
UNITS
N/A
mA
Minutes
0.1K
mV
N/A
mAh
mAh
mAh
mAh
mA
Minutes
Minutes
mA
Minutes
mA
Minutes
10 mWhr
10 mW
Minutes
0.1°K
Counts
%
% / num
mAh
HEX#
SEALED
ACCESS
R/W
R/W
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): bq27541-V200
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