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BQ27500DRZT-V100 Datasheet(PDF) 9 Page - Texas Instruments

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Part # BQ27500DRZT-V100
Description  System-Side Impedance Track??Fuel Gauge
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

BQ27500DRZT-V100 Datasheet(HTML) 9 Page - Texas Instruments

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4.1 DATA COMMANDS
4.1.1
STANDARD DATA COMMANDS
bq27500
bq27501
System-Side Impedance Track™ Fuel Gauge
www.ti.com
SLUS785D – SEPTEMBER 2007 – REVISED APRIL 2008
The bq27500/1 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 4-1. 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 Section 7, 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
Section 4.4, Access Modes).
Table 4-1. Standard Commands
NAME
COMMAND CODE
UNITS
SEALED ACCESS
UNSEALED ACCESS
Control( )
CNTL
0x00 / 0x01
N/A
R/W
R/W
AtRate( )
AR
0x02 / 0x03
mA
R/W
R/W
AtRateTimeToEmpty( )
ARTTE
0x04 / 0x05
Minutes
R
R/W
Temperature( )
TEMP
0x06 / 0x07
0.1 K
R
R/W
Voltage( )
VOLT
0x08 / 0x09
mV
R
R/W
Flags( )
FLAGS
0x0a / 0x0b
N/A
R
R/W
NominalAvailableCapacity( )
NAC
0x0c / 0x0d
mAh
R
R/W
FullAvailableCapacity( )
FAC
0x0e / 0x0f
mAh
R
R/W
RemainingCapacity( )
RM
0x10 / 0x11
mAh
R
R/W
FullChargeCapacity( )
FCC
0x12 / 0x13
mAh
R
R/W
AverageCurrent( )
AI
0x14 / 0x15
mA
R
R/W
TimeToEmpty( )
TTE
0x16 / 0x17
Minutes
R
R/W
TimeToFull( )
TTF
0x18 / 0x19
Minutes
R
R/W
StandbyCurrent( )
SI
0x1a / 0x1b
mA
R
R/W
StandbyTimeToEmpty( )
STTE
0x1c / 0x1d
Minutes
R
R/W
MaxLoadCurrent( )
MLI
0x1e / 0x1f
mA
R
R/W
MaxLoadTimeToEmpty( )
MLTTE
0x20 / 0x21
Minutes
R
R/W
AvailableEnergy( )
AE
0x22 / 0x23
mWh
R
R/W
AveragePower( )
AP
0x24 / 0x25
mW
R
R/W
TimeToEmptyAtConstantPower( )
TTECP
0x26 / 0x27
Minutes
R
R/W
Reserved
RSVD
0x28 / 0x29
N/A
R
R/W
CycleCount( )
CC
0x2a / 0x2b
Counts
R
R/W
StateOfCharge( )
SOC
0x2c / 0x2d
%
R
R/W
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GENERAL DESCRIPTION
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