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bq27505YZGR-J1 Datasheet(PDF) 10 Page - Texas Instruments

Part # bq27505YZGR-J1
Description  System-Side Impedance Track??Fuel Gauge
Download  42 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

bq27505YZGR-J1 Datasheet(HTML) 10 Page - Texas Instruments

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Not Recommended for New Designs
bq27505
SLUS884 – FEBRUARY 2009
www.ti.com
4.1
DATA COMMANDS
4.1.1
STANDARD DATA COMMANDS
The bq27505 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 of Communication.
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, refer to
Section 4.4, Access Modes.)
Table 4-1. Standard Commands
SEALED
UNSEALED
NAME
COMMAND CODE
UNITS
ACCESS
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
TTEatConstantPower( )
TTECP
0x26 / 0x27
Minutes
R
R/W
StateOfHealth()
SOH
0x28 / 0x29
% / num
R
R/W
StateOfCharge( )
SOC
0x2c / 0x2d
%
R
R/W
NormalizedImpedanceCal( )
NIC
0x2e / 0x2f
mohm
R
R/W
InstaneousCurrent Reading( )
ICR
0x30 / 0x31
mA
R
R/W
10
GENERAL DESCRIPTION
Copyright © 2009, Texas Instruments Incorporated
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Product Folder Link(s): bq27505


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