BQ34Z950 Datasheet, PDF (17/28 Pages) Texas Instruments – SBS 1.1-COMPLIANT GAS GAUGE AND PROTECTION ENABLED WITH IMPEDANCE TRACK WITH OPTIONAL DQ INTERFACE

bq34z950
www.ti.com
Symbol
VBATH
VBATL
CELL4H
CELL4L
CELL3H
CELL3L
CELL2H
CELL2L
CELL1H
CELL1L
CYCH
CYCL
MFDH
MFDL
IH
IL
AVIH
AVIL
TMPH
TMPL
SNH
SNL
CHGVH
CHGVL
CHGIH
CHGIL
RSOC
ASOC
MERH
MERL
SLUSBF0A – APRIL 2013 – REVISED MAY 2013
Table 2. DQ COMMAND SET SUMMARY
Register Name
Battery Voltage – High byte
Battery Voltage – Low byte
Cell 4 Voltage – High byte
Cell 4 Voltage – Low byte
Cell 3 Voltage – High byte
Cell 3 Voltage – Low byte
Cell 2 Voltage – High byte
Cell 2 Voltage – Low byte
Cell 1 Voltage – High byte
Cell 1 Voltage – Low byte
Cycle Count – High byte
Cycle Count – Low byte
Manufacturers Date – High byte
Manufacturers Date – Low byte
Current – High byte
Current – Low byte
Average Current – High byte
Average Current – Low byte
Temperature – High byte
Temperature – Low byte
Serial Number – High byte
Serial Number – Low byte
Charging Voltage – High byte
Charging Voltage – Low byte
Charging Current – High byte
Charging Current – Low byte
Relative State of Charge
Absolute State of Charge
Max Error – High byte
Max Error – Low byte
Loc. (hex)
40
41
42
43
44
45
46
47
48
49
4A
4B
4C
4D
4E
4F
50
51
52
53
54
55
56
57
58
59
5A
5B
5C
5D
Access
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Equivalent SMBus
Command (see SMBus
Command Details for
further information)
Voltage() 0x09
VCELL4() 0x3C
VCELL3() 0x3D
VCELL2() 0x3E
VCELL1() 0x3F
Cyclecount() 0x17
ManufactureDate() 0x1B
Current() 0x0A
AverageCurrent() 0x0B
Temperature() 0x08
SerialNumber() 0x1C
ChargingVoltage() 0x15
ChargingCurrent() 0x14
RelativeStateofCharge()
0x0D
AbsoluteStateofCharge()
0x0E
MaxError() 0x0C
bq34z950 DQ Command Set Summary, SHA-1
SYMBOL
CB00
CB01
CB02
CB03
CB04
CB05
CB06
CB07
CB08
Table 3. bq34z950 DQ COMMAND SET SUMMARY, SHA-1
REGISTER NAME
Challenge Byte00
Challenge Byte01
Challenge Byte02
Challenge Byte03
Challenge Byte04
Challenge Byte05
Challenge Byte06
Challenge Byte07
Challenge Byte08
LOC. (hex)
1B
1C
1D
1E
1F
20
21
22
23
ACCESS
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
NOTE
Least significant byte
Copyright © 2013, Texas Instruments Incorporated
Product Folder Links: bq34z950
Submit Documentation Feedback
17