Texas Instruments BQ28Z610-R2

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12 BQ28Z610-R2 SLUUCO0 – APRIL 2022

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Table of Contents3
Read this First9
About this Manual9
Notational Conventions9
Trademarks9
Glossary9
Introduction11
Protections13
Introduction13
Cell Undervoltage Protection13
Cell Overvoltage Protection13
Overcurrent in Charge Protection14
Overcurrent in Discharge Protection14
Hardware-Based Protection15
Overload in Discharge Protection15
Short Circuit in Charge Protection15
Short Circuit in Discharge Protection16
Temperature Protections16
Overtemperature in Charge Protection16
Overtemperature in Discharge Protection17
Undertemperature in Charge Protection17
Undertemperature in Discharge Protection17
Precharge Timeout Protection17
Fast Charge Timeout Protection18
Permanent Fail19
Introduction19
Safety Cell Overvoltage Permanent Fail19
Voltage Imbalance at Rest Permanent Fail20
Voltage Imbalance Active Permanent Fail20
Charge FET Permanent Failure20
Description20
Feature Enable/Disable20
Discharge FET Permanent Failure20
Feature Enable/Disable21
Instruction Flash (IF) Checksum Permanent Fail21
Data Flash (DF) Permanent Fail21
Advanced Charge Algorithm23
Introduction23
Charge Temperature Ranges23
Voltage Range24
Charging Current24
Charging Voltage25
Valid Charge Termination25
Charge and Discharge Alarms26
Terminate Charge and Discharge Alarms27
Precharge27
Maintenance Charge28
BROADCAST Mode28
Charge Disable and Discharge Disable28
Charge Inhibit29
Bq28Z610-R229
Charge Suspend29
Power Modes31
Introduction31
NORMAL Mode31
SLEEP Mode31
Device Sleep31
IN SYSTEM SLEEP Mode31
Macsubcmd() MAC Sleep32
Wake Function32
SHUTDOWN Mode32
Voltage Based Shutdown32
Macsubcmd() MAC Shutdown32
Time Based Shutdown33
Emergency FET Shutdown33
Gauging35
Introduction35
Impedance Track Configuration35
Gas Gauge Modes36
Qmax and Ra38
Qmax Initial Values39
Qmax Update Conditions39
Fast Qmax Update Conditions39
Qmax and Fast Qmax Update Boundary Check40
Ra Table Initial Values40
Ra Table Update Conditions40
Fullchargecapacity (FCC), Remainingcapacity (Remcap), and Relativestateofcharge (RSOC)41
Impedance Track (IT) Configuration Options41
State-Of-Health (SOH)42
Cell Balancing43
Introduction43
Cell Balancing Setup43
Cell Balancing Operation47
Lifetime Data Collection51
Description51
Device Security53
Description53
HMAC Description53
Authentication54
Security Modes54
SEALING and UNSEALING Data Flash54
SEALED to UNSEALED55
UNSEALED to FULL ACCESS55
Manufacture Production57
Manufacture Testing57
Calibration57
Calibration59
Cell Voltage Calibration59
VC2 (BAT) Voltage Calibration60
PACK Voltage Calibration60
Current Calibration61
CC Offset Calibration61
Board Offset Calibration62
CC Gain/Capacity Gain Calibration62
Temperature Calibration63
Internal Temperature Sensor Calibration63
TS1 Calibration63
I2C Commands65
Standard Data Commands65
0X00/01 Manufactureraccess() and Controlstatus()66
0X02/03 Atrate()67
Bq28Z610-R267
0X04/05 Atratetimetoempty()67
0X06/07 Temperature()67
0X08/09 Voltage()67
0X0A/0B Batterystatus()67
0X0C/0D Current()68
0X0E/0F Maxerror()68
0X10/11 Remainingcapacity()69
0X12/13 Fullchargecapacity()69
0X14/15 Averagecurrent()69
0X16/17 Averagetimetoempty()69
0X18/19 Averagetimetofull()69
0X1A/1B Standbycurrent()69
0X1C/1D Standbytimetoempty()69
0X1E/1F Maxloadcurrent()69
0X20/21 Maxloadtimetoempty()70
0X22/23 Averagepower()70
0X28/29 Internaltemperature()70
0X2A/2B Cyclecount()70
0X2C/2D Relativestateofcharge()70
0X2E/2F State-Of-Health (SOH)70
0X30/31 Chargingvoltage()70
0X32/33 Chargingcurrent()71
0X3C/3D Designcapacity()71
0X3E/3F Macsubcmd()71
0X40/0X5F Macdata()71
0X60 Macdatachecksum()71
0X61 Macdatalength()71
Manufacturer Access Control (MAC)72
Macsubcmd() 0X0001 Device Type74
Macsubcmd() 0X0002 Firmware Version74
Macsubcmd() 0X0003 Hardware Version74
Macsubcmd() 0X0004 Instruction Flash Signature74
Macsubcmd() 0X0005 Static DF Signature74
Macsubcmd() 0X0006 Chemical ID74
Macsubcmd() 0X0007 Pre_Macwrite74
Macsubcmd() 0X0008 Static Chem DF Signature75
Macsubcmd() 0X0009 All DF Signature75
Macsubcmd() 0X0010 SHUTDOWN Mode75
Macsubcmd() 0X0011 SLEEP Mode75
Macsubcmd() 0X0012 Device Reset76
Macsubcmd() 0X001F CHG FET76
Macsubcmd() 0X0020 DSG FET76
Macsubcmd() 0X0021 Gauging76
Macsubcmd() 0X0022 FET Control76
Macsubcmd() 0X0023 Lifetime Data Collection76
Macsubcmd() 0X0024 Permanent Failure77
Macsubcmd() 0X0028 Lifetime Data Reset77
Macsubcmd() 0X0029 Permanent Fail Data Reset77
Macsubcmd() 0X002D CALIBRATION Mode77
Macsubcmd() 0X0030 Seal Device77
Macsubcmd() 0X0035 Security Keys77
Macsubcmd() 0X0037 Authentication Key78
Macsubcmd() 0X0041 Device Reset78
Macsubcmd() 0X0050 Safetyalert78
Macsubcmd() 0X0051 Safetystatus79
Macsubcmd() 0X0052 Pfalert81
Macsubcmd() 0X0053 Pfstatus81
Macsubcmd() 0X0054 Operationstatus82
Macsubcmd() 0X0055 Chargingstatus84
Macsubcmd() 0X0056 Gaugingstatus85
Macsubcmd() 0X0057 Manufacturingstatus87
Macsubcmd() 0X0058 AFE Register88
Macsubcmd() 0X0060 Lifetime Data Block 188
Macsubcmd() 0X0070 Manufacturerinfo88
Macsubcmd() 0X0071 Dastatus189
Macsubcmd() 0X0072 Dastatus289
Macsubcmd() 0X0073 Itstatus189
Macsubcmd() 0X0074 Itstatus290
Macsubcmd() 0X0075 Itstatus390
Macsubcmd() 0X0076 CB Status91
Macsubcmd() 0X0077 State-Of-Health91
Macsubcmd() 0X0F00 ROM Mode91
Data Flash Access() 0X4000-0X5Fff91
Macsubcmd() 0Xf080 Exit Calibration Output Mode92
Macsubcmd() 0Xf081 Output CC and ADC for Calibration92
Macsubcmd() 0Xf082 Output Shorted CC and ADC for Calibration92
Data Flash Values95
Data Formats95
Unsigned Integer95
Integer95
Floating Point95
Hex96
String96
Calibration96
Voltage96
Current96
Current Offset96
Current Deadband97
Temperature97
Internal Temp Model97
Cell Temp Model97
Settings98
Configuration98
Charger100
Protection100
Permanent Failure101
Afe102
Manufacturing102
Advanced Charging Algorithms102
Temperature Ranges102
Low Temp Charging102
Standard Temp Charging103
High Temp Charging103
Rec Temp Charging103
Pre-Charging103
Maintenance Charging104
Voltage Range104
Termination Config104
Cell Balancing Config104
Power104
Shutdown104
Sleep105
Ship105
Gas Gauging105
Standby105
Max Load105
Current Thresholds105
Design105
Cycle106
Tda106
Tca106
State107
Config107
Condition Flag109
Soh109
Max Error109
System Data109
Manufacturer Data109
Integrity109
Configuration110
Data110
Lifetimes110
Voltage110
Current110
Temperature110
Protections110
CUV-Cell Undervoltage110
COV-Cell Overvoltage110
OCC-Overcurrent in Charge111
OCD-Overcurrent in Discharge111
AOLD-AFE over Load in Discharge111
ASCC-AFE Short Circuit in Charge111
ASCD-AFE Short Circuit in Discharge111
OTC-Overtemperature in Charge111
OTD-Overtemperature in Discharge112
UTC-Under Temperature in Charge112
UTD-Under Temperature in Discharge112
PTO-PRECHARGE Mode Time out112
CTO-FAST CHARGE Mode Time out112
Permanent Fail112
SOV-Safety Cell Overvoltage112
VIMR-Voltage Imbalance at Rest113
VIMA-Voltage Imbalance Active113
PF Status113
Device Status Data113
Device Voltage Data114
Device Current Data115
Device Temperature Data115
Device Gauging Data115
AFE Registers115
RA Table115
R_A0115
R_A1116
R_A0X116
R_A1X117
Data Flash Summary119
Data Flash Table119
AFE Threshold and Delay Settings129
Overload in Discharge Protection (AOLD)129
Short Circuit in Charge (ASCC)130
Short Circuit in Discharge (ASCD1 and ASCD2)130
Revision History132

Texas Instruments BQ28Z610-R2

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