BQ27210 Datasheet, PDF (12/30 Pages) Texas Instruments – Li-Ion AND Li-Pol BATTERY GAS GAUGE IC FOR PORTABLE APPLICATIONS (bqJUNIOR)

bq27010, bq27210
SLUS707B – APRIL 2006 – REVISED JANUARY 2007
www.ti.com
FUNCTIONAL DESCRIPTION (continued)
Register Interface
The bqJUNIOR stores all calculated information in RAM, which is backed up by the voltage on the RBI input.
EEPROM registers store permanent user data. The memory map for bq27010/bq27210 is shown in Table 1.
Table 1. bq27010/bq27210 Memory Map
ADDRESS
0x7F
0x7E
0x7D
0x7C
0x7B
0x7A
0x79
0x78
0x77
0x76
0x6F - 0x75
0x6E
0x2D - 0x6D
0x2C
0x2B - 0x2A
0x29 - 0x28
0x27 - 0x26
0x25 - 0x22
0x21 - 0x20
0x1F - 0x1E
0x1D - 0x1C
0x1B - 0x1A
0x19 - 0x18
0x17 - 0x16
0x15 - 0x14
0x13 - 0x12
0x11 - 0x10
0x0F - 0x0E
0x0D - 0x0C
0x0B
0x0A
0x09 - 0x08
0x07 - 0x06
0x05 - 0x04
0x03 - 0x02
0x01
0x00
NAME
TCOMP
DCOMP
GAF/DEDV
PKCFG
TAPER
DMFSD
ISLC/EDVT
SEDV1
SEDVF
ILMD
-
EE_EN
-
CSOC
CYCT
CYCL
TTECP
RSVD
CEDV
RSVD
STTE
SI
TTF
TTE
AI
FCAC
CAC
LMD
NAC
RSOC
FLAGS
VOLT
TEMP
ARTTE
AR
MODE
CTRL
FUNCTION
EEPROM Registers
Temperature Compensation Constants, OR, ID#1
Discharge Rate Compensation Constants, OR, ID#2
Gain Age Factor / EDVI Rate Compensation
Pack Configuration Values
LMD Aging Enable, Charge Termination Taper Current
Digital Magnitude Filter and Self-Discharge Rate Constants
Initial Standby Load Current / EDVI Temperature Compensation
Scaled EDV1 Threshold
Scaled EDVF Threshold
Initial Last Measured Discharge High Byte
RESERVED
EEPROM Program Enable
RESERVED
RAM Registers
Compensated State-of-Charge
Cycle Count Total High - Low Byte
Cycle Count Since Learning Cycle High - Low Byte
Time-to-Empty At Constant Power High - Low Byte
Reserved
Compensated EDV Threshold High - Low Byte
Reserved
Standby Time-to-Empty High - Low Byte
Standby Current High - Low Byte
Time-to-Full High - Low Byte
Time-to-Empty High - Low Byte
Average Current High - Low Byte
Full Compensated Available Capacity High - Low Byte
Compensated Available Capacity High - Low Byte
Last Measured Discharge High - Low Byte
Nominal Available Capacity High - Low Byte
Relative State-of-Charge
Status Flags
Reported Voltage High - Low Byte
Reported Temperature High - Low Byte
At-Rate Time-to-Empty High - Low Byte
At-Rate High - Low Byte
Device Mode Register
Device Control Register
(1) Divide by Rs in milliohms to convert µV to mA or µVh to mAh.
UNITS
228 µV⁽¹⁾
914 µVh⁽¹⁾
%
Cycles
Cycles
Minutes
mV
Minutes
3.57 µV⁽¹⁾
Minutes
Minutes
3.57 µV⁽¹⁾
3.57 µVh⁽¹⁾
3.57 µVh⁽¹⁾
3.57 µVh⁽¹⁾
3.57 µVh⁽¹⁾
%
mV
0.25 °K
Minutes
3.57 µV⁽¹⁾
ACCESS
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
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/W
R/W
R/W
12
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