Datasheet

www.ti.com
bq27000 , bq27200
SLUS556D – SEPTEMBER 2004 – REVISED MARCH 2006
FUNCTIONAL DESCRIPTION (continued)
Table 1. bq27000/bq27200 Memory Map
ADDRESS NAME FUNCTION UNITS ACCESS
EEPROM Registers
0x7F TCOMP Temperature Compensation Constants, OR, ID#1 R/W
0x7E DCOMP Discharge Rate Compensation Constants, OR, ID#2 R/W
0x7D IMLC Initial Max Load Current, OR, ID#3 457 µV
(1)
R/W
0x7C PKCFG Pack Configuration Values R/W
0x7B TAPER Aging Estimate Enable, Charge Termination Taper Current 228 µV
(1)
R/W
0x7A DMFSD Digital Magnitude Filter and Self-Discharge Rate Constants R/W
0x79 ISLC Initial Standby Load Current 7.14 µV
(1)
R/W
0x78 SEDV1 Scaled EDV1 Threshold R/W
0x77 SEDVF Scaled EDVF Threshold R/W
0x76 ILMD Initial Last Measured Discharge High Byte 914 µVh
(1)
R/W
0x6F - 0x75 - RESERVED R
0x6E EE_EN EEPROM Program Enable R/W
0x2D - 0x6D - RESERVED R
RAM Registers
0x2C CSOC Compensated State-of-Charge % R
0x2B - 0x2A CYCT Cycle Count Total High - Low Byte Cycles R
0x29 - 0x28 CYCL Cycle Count Since Learning Cycle High - Low Byte Cycles R
0x27 - 0x26 TTECP Time-to-Empty At Constant Power High - Low Byte Minutes R
0x25 - 0x24 AP Average Power High - Low Byte 29.2 µV
2 (2)
R
0x23 - 0x22 SAE Available Energy High - Low Byte 29.2 µV
2
h
(2)
R
0x21 - 0x20 MLTTE Max Load Time-to-Empty High - Low Byte Minutes R
0x1F - 0x1E MLI Max Load Current High - Low Byte 3.57 µV
(1)
R
0x1D - 0x1C STTE Standby Time-to-Empty High - Low Byte Minutes R
0x1B - 0x1A SI Standby Current High - Low Byte 3.57 µV
(1)
R
0x19 - 0x18 TTF Time-to-Full High - Low Byte Minutes R
0x17 - 0x16 TTE Time-to-Empty High - Low Byte Minutes R
0x15 - 0x14 AI Average Current High - Low Byte 3.57 µV
(1)
R
0x13 - 0x12 LMD Last Measured Discharge High - Low Byte 3.57 µVh
(1)
R
0x11 - 0x10 CACT Temperature Compensated CACD High - Low Byte 3.57 µVh
(1)
R
0x0F - 0x0E CACD Discharge Compensated NAC High - Low Byte 3.57 µVh
(1)
R
0x0D - 0x0C NAC Nominal Available Capacity High - Low Byte 3.57 µVh
(1)
R
0x0B RSOC Relative State-of-Charge % R
0x0A FLAGS Status Flags R
0x09 - 0x08 VOLT Reported Voltage High - Low Byte mV R
0x07 - 0x06 TEMP Reported Temperature High - Low Byte 0.25 ° K R
0x05 - 0x04 ARTTE At-Rate Time-to-Empty High - Low Byte Minutes R
0x03 - 0x02 AR At-Rate High - Low Byte 3.57 µV
(1)
R/W
0x01 MODE Device Mode Register R/W
0x00 CTRL Device Control Register R/W
(1) Divide by Rs in milliohms to convert µV to mA or µVh to mAh.
(2) Divide by Rs in milliohms to convert µV
2
to mW or µV
2
h to mWh.
12
Submit Documentation Feedback