SLUUA65E april   2014  – june 2023 BQ28Z610

 

  1.   1
  2.   Read This First
    1.     About This Manual
    2.     Notational Conventions
    3.     Trademarks
    4.     Glossary
  3. 1 Introduction
  4. 2 Protections
    1. 2.1  Introduction
    2. 2.2  Cell Undervoltage Protection
    3. 2.3  Cell Overvoltage Protection
    4. 2.4  Overcurrent in Charge Protection
    5. 2.5  Overcurrent in Discharge Protection
    6. 2.6  Hardware-Based Protection
      1. 2.6.1 Overload in Discharge Protection
      2. 2.6.2 Short Circuit in Charge Protection
      3. 2.6.3 Short Circuit in Discharge Protection
    7. 2.7  Temperature Protections
    8. 2.8  Overtemperature in Charge Protection
    9. 2.9  Overtemperature in Discharge Protection
    10. 2.10 Undertemperature in Charge Protection
    11. 2.11 Undertemperature in Discharge Protection
    12. 2.12 Precharge Timeout Protection
    13. 2.13 Fast Charge Timeout Protection
  5. 3 Permanent Fail
    1. 3.1 Introduction
    2. 3.2 Safety Cell Overvoltage Permanent Fail
    3. 3.3 Voltage Imbalance at Rest Permanent Fail
    4. 3.4 Voltage Imbalance Active Permanent Fail
    5. 3.5 Charge FET Permanent Failure
      1. 3.5.1 Description
      2. 3.5.2 Feature Enable/Disable
    6. 3.6 Discharge FET Permanent Failure
      1. 3.6.1 Description
      2. 3.6.2 Feature Enable/Disable
    7. 3.7 Instruction Flash (IF) Checksum Permanent Fail
    8. 3.8 Data Flash (DF) Permanent Fail
  6. 4 Advanced Charge Algorithm
    1. 4.1  Introduction
    2. 4.2  Charge Temperature Ranges
    3. 4.3  Voltage Range
    4. 4.4  Charging Current
    5. 4.5  Charging Voltage
    6. 4.6  Valid Charge Termination
    7. 4.7  Charge and Discharge Alarms
    8. 4.8  Terminate Charge and Discharge Alarms
    9. 4.9  Precharge
    10. 4.10 Maintenance Charge
    11. 4.11 BROADCAST Mode
    12. 4.12 Charge Disable and Discharge Disable
    13. 4.13 Charge Inhibit
    14. 4.14 Charge Suspend
  7. 5 Power Modes
    1. 5.1 Introduction
    2. 5.2 NORMAL Mode
    3. 5.3 SLEEP Mode
      1. 5.3.1 Device Sleep
      2. 5.3.2 IN SYSTEM SLEEP Mode
      3. 5.3.3 AltManufacturerAccess() MAC Sleep
      4. 5.3.4 Wake Function
    4. 5.4 SHUTDOWN Mode
      1. 5.4.1 Voltage Based Shutdown
      2. 5.4.2 AltManufacturerAccess() MAC Shutdown
      3. 5.4.3 Time Based Shutdown
      4. 5.4.4 Emergency FET Shutdown
        1. 5.4.4.1 Exiting Emergency FET Shutdown
  8. 6 Gauging
    1. 6.1 Introduction
    2. 6.2 Impedance Track Configuration
    3. 6.3 Gas Gauge Modes
    4. 6.4 QMax and Ra
      1. 6.4.1 QMax Initial Values
      2. 6.4.2 QMax Update Conditions
      3. 6.4.3 Fast QMax Update Conditions
      4. 6.4.4 QMax and Fast QMax Update Boundary Check
      5. 6.4.5 Ra Table Initial Values
      6. 6.4.6 Ra Table Update Conditions
    5. 6.5 FullChargeCapacity (FCC), RemainingCapacity (RemCap), and RelativeStateOfCharge (RSOC)
    6. 6.6 Impedance Track (IT) Configuration Options
    7. 6.7 State-of-Health (SOH)
    8. 6.8 Battery Trip Point (BTP)
  9. 7 Cell Balancing
    1. 7.1 Introduction
    2. 7.2 Cell Balancing Setup
    3. 7.3 Cell Balancing Operation
  10. 8 Lifetime Data Collection
    1. 8.1 Description
  11. 9 Device Security
    1. 9.1 Description
    2. 9.2 SHA-1 Description
    3. 9.3 HMAC Description
    4. 9.4 Authentication
    5. 9.5 Security Modes
      1. 9.5.1 SEALING and UNSEALING Data Flash
      2. 9.5.2 SEALED to UNSEALED
      3. 9.5.3 UNSEALED to FULL ACCESS
  12. 10Manufacture Production
    1. 10.1 Manufacture Testing
    2. 10.2 Calibration
  13. 11Calibration
    1. 11.1 Cell Voltage Calibration
    2. 11.2 VC2 (BAT) Voltage Calibration
    3. 11.3 PACK Voltage Calibration
    4. 11.4 Current Calibration
      1. 11.4.1 CC Offset Calibration
      2. 11.4.2 Board Offset Calibration
      3. 11.4.3 CC Gain/Capacity Gain Calibration
    5. 11.5 Temperature Calibration
      1. 11.5.1 Internal Temperature Sensor Calibration
      2. 11.5.2 TS1 Calibration
  14. 12I2C Commands
    1. 12.1 Standard Data Commands
      1. 12.1.1  0x00/01 ManufacturerAccess() Control
      2. 12.1.2  0x02/03 AtRate()
      3. 12.1.3  0x04/05 AtRateTimeToEmpty()
      4. 12.1.4  0x06/07 Temperature()
      5. 12.1.5  0x08/09 Voltage()
      6. 12.1.6  0x0A/0B BatteryStatus()
      7. 12.1.7  0x0C/0D Current()
      8. 12.1.8  0x0E/0F MaxError()
      9. 12.1.9  0x10/11 RemainingCapacity()
      10. 12.1.10 0x12/13 FullChargeCapacity()
      11. 12.1.11 0x14/15 AverageCurrent()
      12. 12.1.12 0x16/17 AverageTimeToEmpty()
      13. 12.1.13 0x18/19 AverageTimeToFull()
      14. 12.1.14 0x1A/1B StandbyCurrent()
      15. 12.1.15 0x1C/1D StandbyTimeToEmpty()
      16. 12.1.16 0x1E/1F MaxLoadCurrent()
      17. 12.1.17 0x20/21 MaxLoadTimeToEmpty()
      18. 12.1.18 0x22/23 AveragePower()
      19. 12.1.19 0x24/25 BTPDischargeSet()
      20. 12.1.20 0x26/27 BTPChargeSet()
      21. 12.1.21 0x28/29 InternalTemperature()
      22. 12.1.22 0x2A/2B CycleCount()
      23. 12.1.23 0x2C/2D RelativeStateOfCharge()
      24. 12.1.24 0x2E/2F State-of-Health (SOH)
      25. 12.1.25 0x30/31 ChargingVoltage()
      26. 12.1.26 0x32/33 ChargingCurrent()
      27. 12.1.27 0x3C/3D DesignCapacity()
      28. 12.1.28 0x3E/3F AltManufacturerAccess()
      29. 12.1.29 0x40/0x5F MACData()
      30. 12.1.30 0x60 MACDataChecksum()
      31. 12.1.31 0x61 MACDataLength()
    2. 12.2 0x00, 0x01 AltManufacturerAccess() and 0x3E, 0x3F AltManufacturerAccess()
      1. 12.2.1  AltManufacturerAccess() 0x0001 Device Type
      2. 12.2.2  AltManufacturerAccess() 0x0002 Firmware Version
      3. 12.2.3  AltManufacturerAccess() 0x0003 Hardware Version
      4. 12.2.4  AltManufacturerAccess() 0x0004 Instruction Flash Signature
      5. 12.2.5  AltManufacturerAccess() 0x0005 Static DF Signature
      6. 12.2.6  AltManufacturerAccess() 0x0006 Chemical ID
      7. 12.2.7  AltManufacturerAccess() 0x0007 Pre_MACWrite
      8. 12.2.8  AltManufacturerAccess() 0x0008 Static Chem DF Signature
      9. 12.2.9  AltManufacturerAccess() 0x0009 All DF Signature
      10. 12.2.10 AltManufacturerAccess() 0x0010 SHUTDOWN Mode
      11. 12.2.11 AltManufacturerAccess() 0x0011 SLEEP Mode
      12. 12.2.12 AltManufacturerAccess() 0x0012 Device Reset
      13. 12.2.13 AltManufacturerAccess() 0x001F CHG FET
      14. 12.2.14 AltManufacturerAccess() 0x0020 DSG FET
      15. 12.2.15 AltManufacturerAccess() 0x0021 Gauging
      16. 12.2.16 AltManufacturerAccess() 0x0022 FET Control
      17. 12.2.17 AltManufacturerAccess() 0x0023 Lifetime Data Collection
      18. 12.2.18 AltManufacturerAccess() 0x0024 Permanent Failure
      19. 12.2.19 AltManufacturerAccess() 0x0028 Lifetime Data Reset
      20. 12.2.20 AltManufacturerAccess() 0x0029 Permanent Fail Data Reset
      21. 12.2.21 AltManufacturerAccess() 0x002D CALIBRATION Mode
      22. 12.2.22 AltManufacturerAccess() 0x0030 Seal Device
      23. 12.2.23 AltManufacturerAccess() 0x0035 Security Keys
      24. 12.2.24 AltManufacturerAccess() 0x0037 Authentication Key
      25. 12.2.25 AltManufacturerAccess() 0x0041 Device Reset
      26. 12.2.26 AltManufacturerAccess() 0x0050 SafetyAlert
      27. 12.2.27 AltManufacturerAccess() 0x0051 SafetyStatus
      28. 12.2.28 AltManufacturerAccess() 0x0052 PFAlert
      29. 12.2.29 AltManufacturerAccess() 0x0053 PFStatus
      30. 12.2.30 AltManufacturerAccess() 0x0054 OperationStatus
      31. 12.2.31 AltManufacturerAccess() 0x0055 ChargingStatus
      32. 12.2.32 AltManufacturerAccess() 0x0056 GaugingStatus
      33. 12.2.33 AltManufacturerAccess() 0x0057 ManufacturingStatus
      34. 12.2.34 AltManufacturerAccess() 0x0058 AFE Register
      35. 12.2.35 AltManufacturerAccess() 0x0060 Lifetime Data Block 1
      36. 12.2.36 AltManufacturerAccess() 0x0070 ManufacturerInfo
      37. 12.2.37 AltManufacturerAccess() 0x0071 DAStatus1
      38. 12.2.38 AltManufacturerAccess() 0x0072 DAStatus2
      39. 12.2.39 AltManufacturerAccess() 0x0073 ITStatus1
      40. 12.2.40 AltManufacturerAccess() 0x0074 ITStatus2
      41. 12.2.41 AltManufacturerAccess() 0x0075 ITStatus3
      42. 12.2.42 AltManufacturerAccess() 0x0076 CB Status
      43. 12.2.43 AltManufacturerAccess() 0x0077 State-of-Health
      44. 12.2.44 AltManufacturerAccess() 0x0F00 ROM Mode
      45. 12.2.45 Data Flash Access() 0x4000–0x5FFF
      46. 12.2.46 AltManufacturerAccess() 0xF080 Exit Calibration Output Mode
      47. 12.2.47 AltManufacturerAccess() 0xF081 Output CC and ADC for Calibration
      48. 12.2.48 AltManufacturerAccess() 0xF082 Output Shorted CC and ADC for Calibration
  15. 13Data Flash Values
    1. 13.1  Data Formats
      1. 13.1.1 Unsigned Integer
      2. 13.1.2 Integer
      3. 13.1.3 Floating Point
      4. 13.1.4 Hex
      5. 13.1.5 String
    2. 13.2  Calibration
      1. 13.2.1 Voltage
      2. 13.2.2 Current
      3. 13.2.3 Current Offset
      4. 13.2.4 Current Deadband
      5. 13.2.5 Temperature
      6. 13.2.6 Internal Temp Model
      7. 13.2.7 Cell Temp Model
    3. 13.3  Settings
      1. 13.3.1 Configuration
      2. 13.3.2 Charger
      3. 13.3.3 Protection
      4. 13.3.4 Permanent Failure
      5. 13.3.5 AFE
      6. 13.3.6 Manufacturing
    4. 13.4  Advanced Charging Algorithms
      1. 13.4.1  Temperature Ranges
      2. 13.4.2  Low Temp Charging
      3. 13.4.3  Standard Temp Charging
      4. 13.4.4  High Temp Charging
      5. 13.4.5  Rec Temp Charging
      6. 13.4.6  Pre-Charging
      7. 13.4.7  Maintenance Charging
      8. 13.4.8  Voltage Range
      9. 13.4.9  Termination Config
      10. 13.4.10 Cell Balancing Config
    5. 13.5  Power
      1. 13.5.1 Power
      2. 13.5.2 Shutdown
      3. 13.5.3 Sleep
      4. 13.5.4 Ship
    6. 13.6  Gas Gauging
      1. 13.6.1  Standby
      2. 13.6.2  Max Load
      3. 13.6.3  Current Thresholds
      4. 13.6.4  Design
      5. 13.6.5  Cycle
      6. 13.6.6  FD
      7. 13.6.7  FC
      8. 13.6.8  TDA
      9. 13.6.9  TCA
      10. 13.6.10 State
      11. 13.6.11 IT Config
      12. 13.6.12 Condition Flag
      13. 13.6.13 SOH
      14. 13.6.14 Max Error
    7. 13.7  System Data
      1. 13.7.1 Manufacturer Data
      2. 13.7.2 Integrity
    8. 13.8  Configuration
      1. 13.8.1 Data
    9. 13.9  Lifetimes
      1. 13.9.1 Voltage
      2. 13.9.2 Current
      3. 13.9.3 Temperature
    10. 13.10 Protections
      1. 13.10.1  CUV—Cell Undervoltage
      2. 13.10.2  COV—Cell Overvoltage
      3. 13.10.3  OCC—Overcurrent In Charge
      4. 13.10.4  OCD—Overcurrent In Discharge
      5. 13.10.5  AOLD—AFE Over Load In Discharge
      6. 13.10.6  ASCC—AFE Short Circuit in Charge
      7. 13.10.7  ASCD—AFE Short Circuit in Discharge
      8. 13.10.8  OTC—Overtemperature in Charge
      9. 13.10.9  OTD—Overtemperature in Discharge
      10. 13.10.10 UTC—Under Temperature in Charge
      11. 13.10.11 UTD—Under Temperature in Discharge
      12. 13.10.12 PTO—PRECHARGE Mode Time Out
      13. 13.10.13 CTO—FAST CHARGE Mode Time Out
    11. 13.11 Permanent Fail
      1. 13.11.1 SOV—Safety Cell Overvoltage
      2. 13.11.2 VIMR—Voltage Imbalance at Rest
      3. 13.11.3 VIMA—Voltage Imbalance Active
    12. 13.12 PF Status
      1. 13.12.1 Device Status
      2. 13.12.2 275
      3. 13.12.3 Device Voltage Data
      4. 13.12.4 Device Current Data
      5. 13.12.5 Device Temperature Data
      6. 13.12.6 Device Gauging Data
      7. 13.12.7 AFE Registers
    13. 13.13 RA Table
      1. 13.13.1 R_a0
      2. 13.13.2 R_a1
      3. 13.13.3 R_a0x
      4. 13.13.4 R_a1x
  16. 14Data Flash Summary
    1. 14.1 Data Flash Table
  17.   A AFE Threshold and Delay Settings
    1.     A.1 Overload in Discharge Protection (AOLD)
    2.     A.2 Short Circuit in Charge (ASCC)
    3.     A.3 Short Circuit in Discharge (ASCD1 and ASCD2)
  18.   B Revision History

13.3.1 Configuration

ClassSubclassNameTypeMinMaxDefaultDescription
Settings Configuration FET Options H1 0x00 0xFF 0x20 Bit 0: Reserved
Bit 1: Reserved
Bit 2: OTFET—FET action in OVERTEMPERATURE mode
0 = No FET action for overtemperature condition (default)
1 = CHG and DSG FETs will be turned off for overtemperature conditions.
Bit 3: CHGSU—FET action in CHARGE SUSPEND mode
0 = FET active (default)
1 = Charging or precharging disabled, FET off
Bit 4: CHGIN—FET action in CHARGE INHIBIT mode
0 = FET active (default)
1 = Charging or precharging disabled, FET off
Bit 5: CHGFET—FET action on valid charge termination
0 = FET active (default)
1 = Charging or precharging disabled, FET off
Bit 6: SLEEPCHG—CHG FET enabled during sleep
0 = CHG FET off during sleep (default)
1 = CHG FET remains on during sleep.
Bit 7: Reserved
Settings Configuration I2C Gauging Configuration H1 0x00 0x0F 0x04 Bit 0: RSOCL—RelativeStateOfCharge() and RemainingCapacity() behavior at end of charge
0 = Actual value shown (default)
1 = Held at 99% until valid charge termination. On entering valid charge termination, updates to 100%.
Bit 1: RSOC_HOLD—Prevents RSOC from increasing during discharge
0 = RSOC not limited
1 = RSOC not allowed to increase during discharge
Bit 2: LOCK0—Keeps RemainingCapacity() and RelativeStateOfCharge() from jumping back during relaxation after 0 was reached during discharge.
0 = Disabled (default)
1 = Enabled
Bit 7:3: Reserved
Settings Configuration I2C Configuration H1 0x00 0xFF 0x01 Bit 0: BCAST—Enables the charging broadcast from device to smart charger
0 = Disabled
1 = Enabled (default)
Bit 1: Reserved
Bit 2: Reserved
Bit 3: XL—Enables 400-kHz COM mode
0 = Normal bus speed (default)
1 = 400-kHz bus speed (slave mode)
Bit 5:4: Reserved
Bit 6: TO_STRETCH_EN—Enables bus timeouts (15-ms clock high and 25ms clock low)
0 = Disabled (default)
1 = Enabled
Bit 7: FLASH_BUSY_WAIT—Enables clock stretching during a flash program or erase operation
0 = Disabled (default)
1 = Enabled
Settings Configuration Power Config H1 0x00 0x01 0x00 Bit 0: AUTO_SHIP_EN—Automatically shut down for shipment
0 = Disables the auto shutdown feature (default)
1 = Enables auto shutdown after the device is in SLEEP mode without communication for a set period of time.
Bit 3: 1: Reserved
Bit 4: SLP_ACCUM—Enables sleep charge accumulation
1 = Enables sleep charge accumulation
0 = Disables sleep charge accumulation (default)
Bit 5: SLEEPWKCHG—Enables sleep wake charge feature
1 = Enables the sleep wake charge feature
0 = Disables sleep wake charge feature (default)
Bit 7: 6: Reserved
Settings Configuration I/O Config H1 0x00 0x03 0x00 Bit 0: BTP_EN—Enables assertion of BTP terminal
0 = Disables assertion of the BTP terminal when BTP is triggered (default).
1 = Enables assertion of BTP terminal when BTP is triggered
Bit 1: BTP_POL—Control polarity of BTP terminal
0 = BTP terminal is asserted low when BTP is triggered (default).
1 = BTP terminal is asserted high when BTP is triggered.
Bit 7:2: Reserved
Settings Configuration SOC Flag Config A H2 0x0000 0xFFFF 0x0C8C Bit 0: TDSETV—Enables the TD flag set by the cell voltage threshold
0 = Disabled (default)
1 = Enabled
Bit 1: TDCLEARV—Enables the TD flag clear by cell voltage threshold
0 = Disabled (default)
1 = Enabled
Bit 2: TDSETRSOC—Enables the TD flag set by RSOC threshold
0 = Disabled
1 = Enabled (default)
Bit 3: TDCLEARRSOC—Enables the TD flag cleared by the RSOC threshold
0 = Disabled
1 = Enabled (default)
Bit 4: TCSETV—Enables the TC flag set by cell voltage threshold
0 = Disabled (default)
1 = Enabled
Bit 5: TCCLEARV—Enables the TC flag clear by cell voltage threshold
0 = Disabled (default)
1 = Enabled
Bit 6: TCSETRSOC—Enables the TC flag set by the RSOC threshold
0 = Disabled (default)
1 = Enabled
Bit 7: TCCLEARRSOC—Enables the TC flag cleared by the RSOC threshold
0 = Disabled
1 = Enabled (default)
Bit 8: Reserved
Bit 9: Reserved
Bit 10: FCSETVCT—Enables the FC flag set by primary charge termination
0 = Disabled
1 = Enabled (default)
Bit 11: TCSETVCT—Enables the TC flag set by primary charge termination
0 = Disabled
1 = Enabled (default)
Bit 15: 12: Reserved
Settings Configuration SOC Flag Config B H1 0x0000 0x00FF 0x008C Bit 0: FDSETV—Enables the FD flag set by cell voltage threshold
0 = Disabled (default)
1 = Enabled
Bit 1: FDCLEARV—Enables the FD flag clear by cell voltage threshold
0 = Disabled (default)
1 = Enabled
Bit 2: FDSETRSOC—Enables the FD flag set by RSOC threshold
0 = Disabled
1 = Enabled (default)
Bit 3: FDCLEARRSOC—Enables the FD flag clear by RSOC threshold
0 = Disabled
1 = Enabled (default)
Bit 4: FCSETV—Enables the FC flag set by cell voltage threshold
0 = Disabled (default)
1 = Enabled
Bit 5: FCCLEARV—Enables the FC flag clear by cell voltage threshold
0 = Disabled (default)
1 = Enabled
Bit 6: FCSETRSOC—Enables the FC flag set by RSOC threshold
0 = Disabled (default)
1 = Enabled
Bit 7: FCCLEARRSOC—Enables the FC flag clear by RSOC threshold
0 = Disabled
1 = Enabled (default)
Settings Configuration Charging Configuration H1 0x00 0x3F 0x00 Bit 0: CRATE—ChargeCurrent rate
0 = No adjustment to ChargingCurrent() (default)
1 = ChargingCurrent() adjusted based on FullChargeCapacity()/DesignCapacity()
Bit 7:1: Reserved
Settings Configuration Temperature Enable H1 0x00 0x03 0x03 Bit 0: internal TS— Enables internal TS
0 = Disables internal TS (default)
1 = Enables internal TS
Bit 1: TS1—Enables TS1
0 = Disables TS1
1 = Enables TS1 (default)
Bit 7:2: Reserved
Settings Configuration DA Configuration H1 0x00 0xFF 0x11 Bit 0: CC0—Cell Count
0 = 1 cell
1 = 2 cell
Bit 1: Reserved
Bit 2: Reserved
Bit 3: IN_SYSTEM_SLEEP—In-system SLEEP mode
0 = Disables (default)
1 = Enables
Bit 4: SLEEP—SLEEP Mode
0 = Disables SLEEP mode
1 = Enables SLEEP mode (default)
Bit 5: Reserved
Bit 6: CTEMP—Cell Temperature protection source
0 = MAX (default)
1 = Average
Bit 7: Reserved
Settings Configuration IT Gauging Configuration H2 0x0000 0xFFFF 0xD4DE Bit 0: CCT—Cycle count threshold
0 = Use CC % of DesignCapacity() (default)
1 = Use CC % of FullChargeCapacity()
Bit 1: CSYNC—Sync RemainingCapacity() with FullChargeCapacity() at valid charge termination
0 = Not synchronized
1 = Synchronized (default)
Bit 2: RFACTSTEP—Allow Ra update to limit before disqualifying further updates
0 = If (new Ra)/(old Ra) > 3, Ra update is not completed, and Ra updates are disabled.
1 = If (new Ra)/(old Ra) > 3, one Ra update is completed limited to factor of 3, and further Ra updates are disabled.
Bit 3: OCVFR—Open Circuit Voltage Flat Region
0 = Disabled
1 = Enabled (default)
Bit 4: Reserved
Bit 5: Reserved
Bit 6: RSOC_CONV—See Section 6.6.
Bit 7: FAST_QMax_LRN—See Section 6.6.
Bit 8: FAST_Qmax_FLD—See Section 6.6.
Bit 9: CELL_TERM—See Section 6.6.
Bit 10: FF_NEAR_EDV—See Section 6.6.
Bit 11: RELAX_JUMP_OK—See Section 6.6.
Bit 12: SMOOTH—See Section 6.6.
Bit 13: Reserved
Bit 14: Reserved
Bit 15: Reserved
Settings Configuration Balancing Configuration H1 0x00 0xFF 0x01 Bit 0: CB—Cell balancing
0 = Cell balancing disabled
1 = Cell balancing enabled (default)
Bit 1: Reserved
Bit 2: CBR—Cell balancing at rest
0 = Cell balancing at rest is disabled (default).
1 = Cell balancing at rest is enabled.
Bit 7:3: Reserved