Datasheet

bq27541-G1
www.ti.com SLUSAL6C –NOVEMBER 2011–REVISED OCTOBER 2012
DATA COMMANDS
STANDARD DATA COMMANDS
The bq27541-G1 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.
Table 1. Standard Commands
SEALED
NAME COMMAND CODE UNITS
ACCESS
Control( ) CNTL 0x00 / 0x01 N/A R/W
AtRate( ) AR 0x02 / 0x03 mA R/W
UnfilteredSOC() UFSOC 0x04 / 0x05 % R
Temperature( ) TEMP 0x06 / 0x07 0.1K R
Voltage( ) VOLT 0x08 / 0x09 mV R
Flags( ) FLAGS 0x0a / 0x0b N/A R
NomAvailableCapacity( ) NAC 0x0c / 0x0d mAh R
FullAvailableCapacity( ) FAC 0x0e / 0x0f mAh R
RemainingCapacity( ) RM 0x10 / 0x11 mAh R
FullChargeCapacity( ) FCC 0x12 / 0x13 mAh R
AverageCurrent( ) AI 0x14 / 0x15 mA R
TimeToEmpty( ) TTE 0x16 / 0x17 Minutes R
FilteredFCC() FFCC 0x18 / 0x19 mAh R
StandbyCurrent( ) SI 0x1a / 0x1b mA R
UnfilteredFCC() UFFCC 0x1c / 0x1d mAh R
MaxLoadCurrent( ) MLI 0x1e / 0x1f mA R
UnfilteredRM() UFRM 0x20 / 0x21 mAh R
FilteredRM() FRM 0x22 / 0x23 mAh R
AveragePower( ) AP 0x24 / 0x25 mW / cW R
InternalTemperature( ) INTTEMP 0x28 / 0x29 0.1°K R
CycleCount( ) CC 0x2a / 0x2b Counts R
StateOfCharge( ) SOC 0x2c / 0x2d % R
StateOfHealth( ) SOH 0x2e / 0x2f % / num R
PassedCharge( ) PCHG 0x34 / 0x35 mAh R
DOD0( ) DOD0 0x36 / 0x37 HEX# R
SelfDischargeCurrent() SDSG 0x38 / 0x39 mA R
Copyright © 2011–2012, Texas Instruments Incorporated Submit Documentation Feedback 9
Product Folder Links: bq27541-G1