ZHCS926C May   2012  – May 2021 BQ34Z100

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics: Power-On Reset
    6. 6.6  Electrical Characteristics: LDO Regulator
    7. 6.7  Electrical Characteristics: Internal Temperature Sensor Characteristics
    8. 6.8  Electrical Characteristics: Low-Frequency Oscillator
    9. 6.9  Electrical Characteristics: High-Frequency Oscillator
    10. 6.10 Electrical Characteristics: Integrating ADC (Coulomb Counter) Characteristics
    11. 6.11 Electrical Characteristics: ADC (Temperature and Cell Measurement) Characteristics
    12. 6.12 Electrical Characteristics: Data Flash Memory Characteristics
    13. 6.13 Timing Requirements: HDQ Communication
    14. 6.14 Timing Requirements: I2C-Compatible Interface
    15. 6.15 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Feature Description
      1. 7.2.1  Data Commands
        1. 7.2.1.1 Standard Data Commands
        2. 7.2.1.2 Control(): 0x00/0x01
          1. 7.2.1.2.1  CONTROL_STATUS: 0x0000
          2. 7.2.1.2.2  DEVICE TYPE: 0x0001
          3. 7.2.1.2.3  FW_VERSION: 0x0002
          4. 7.2.1.2.4  HW_VERSION: 0x0003
          5. 7.2.1.2.5  RESET_DATA: 0x0005
          6. 7.2.1.2.6  PREV_MACWRITE: 0x0007
          7. 7.2.1.2.7  CHEM ID: 0x0008
          8. 7.2.1.2.8  BOARD_OFFSET: 0x0009
          9. 7.2.1.2.9  CC_OFFSET: 0x000A
          10. 7.2.1.2.10 CC_OFFSET_SAVE: 0x000B
          11. 7.2.1.2.11 DF_VERSION: 0x000C
          12. 7.2.1.2.12 SET_FULLSLEEP: 0x0010
          13. 7.2.1.2.13 STATIC_CHEM_DF_CHKSUM: 0x0017
          14. 7.2.1.2.14 SEALED: 0x0020
          15. 7.2.1.2.15 IT ENABLE: 0x0021
          16. 7.2.1.2.16 RESET: 0x0041
          17. 7.2.1.2.17 EXIT_CAL: 0x0080
          18. 7.2.1.2.18 ENTER_CAL: 0x0081
          19. 7.2.1.2.19 OFFSET_CAL: 0x0082
        3. 7.2.1.3 StateOfCharge(): 0x02/0x03
        4. 7.2.1.4 RemainingCapacity(): 0x04/0x05
        5. 7.2.1.5 FullChargeCapacity(): 0x06/07
        6. 7.2.1.6 Voltage(): 0x08/0x09
        7. 7.2.1.7 AverageCurrent(): 0x0A/0x0B
        8. 7.2.1.8 Temperature(): 0x0C/0x0D
        9. 7.2.1.9 Flags(): 0x0E/0x0F
      2. 7.2.2  Extended Data Commands
        1. 7.2.2.1  AtRate(): 0X10/0x11
        2. 7.2.2.2  AtRateTimeToEmpty(): 0x12/0x13
        3. 7.2.2.3  Current(): 0x10/0x11
        4. 7.2.2.4  NominalAvailableCapacity(): 0x14/0x15
        5. 7.2.2.5  FullAvailableCapacity(): 0x16/0x17
        6. 7.2.2.6  TimeToEmpty(): 0x18/0x19
        7. 7.2.2.7  TimeToFull(): 0x1A/0x1B
        8. 7.2.2.8  StandbyCurrent(): 0x1C/0x1D
        9. 7.2.2.9  StandbyTimeToEmpty(): 0x1E/0x1F
        10. 7.2.2.10 MaxLoadCurrent(): 0x20/0x21
        11. 7.2.2.11 MaxLoadTimeToEmpty(): 0x22/0x23
        12. 7.2.2.12 AvailableEnergy(): 0x24/0x25
        13. 7.2.2.13 AveragePower(): 0x26/0x27
        14. 7.2.2.14 TimeToEmptyAtConstantPower(): 0x28/0x29
        15. 7.2.2.15 InternalTemp(): 0x2A/0x2B
        16. 7.2.2.16 CycleCount(): 0x2C/0x2D
        17. 7.2.2.17 StateOfHealth(): 0x2E/0x2F
        18. 7.2.2.18 ChargeVoltage(): 0x30/0x31
        19. 7.2.2.19 ChargeCurrent(): 0x32/0x33
        20. 7.2.2.20 PassedCharge(): 0x34/0x35
        21. 7.2.2.21 DOD0(): 0x36/0x37
        22. 7.2.2.22 SelfDischargeCurrent(): 0x38/0x39
        23. 7.2.2.23 PackConfiguration(): 0x3A/0x3B
        24. 7.2.2.24 DesignCapacity(): 0x3C/0x3D
        25. 7.2.2.25 DataFlashClass(): 0x3E
        26. 7.2.2.26 DataFlashBlock(): 0x3F
        27. 7.2.2.27 AuthenticateData/BlockData(): 0x40…0x53
        28. 7.2.2.28 AuthenticateChecksum/BlockData(): 0x54
        29. 7.2.2.29 BlockData(): 0x55…0x5F
        30. 7.2.2.30 BlockDataChecksum(): 0x60
        31. 7.2.2.31 BlockDataControl(): 0x61
        32. 7.2.2.32 DeviceNameLength(): 0x62
        33. 7.2.2.33 DeviceName(): 0x63…0x6A
      3. 7.2.3  Data Flash Interface
        1. 7.2.3.1 Accessing Data Flash
        2. 7.2.3.2 Manufacturer Information Block
        3. 7.2.3.3 Access Modes
        4. 7.2.3.4 Sealing/Unsealing Data Flash Access
      4. 7.2.4  Data Flash Summary
      5. 7.2.5  Fuel Gauging
      6. 7.2.6  Impedance Track Variables
        1. 7.2.6.1  Load Mode
        2. 7.2.6.2  Load Select
        3. 7.2.6.3  Reserve Cap-mAh
        4. 7.2.6.4  Reserve Cap-mWh/cWh
        5. 7.2.6.5  Design Energy Scale
        6. 7.2.6.6  Dsg Current Threshold
        7. 7.2.6.7  Chg Current Threshold
        8. 7.2.6.8  Quit Current, Dsg Relax Time, Chg Relax Time, and Quit Relax Time
        9. 7.2.6.9  Qmax
        10. 7.2.6.10 Update Status
        11. 7.2.6.11 Avg I Last Run
        12. 7.2.6.12 Avg P Last Run
        13. 7.2.6.13 Delta Voltage
        14. 7.2.6.14 Ra Tables
        15. 7.2.6.15 Pack Configuration Register
          1. 7.2.6.15.1 Pack Configuration B Register
          2. 7.2.6.15.2 Pack Configuration C Register
      7. 7.2.7  Voltage Division and Calibration
        1. 7.2.7.1 1S Example
        2. 7.2.7.2 7S Example
        3. 7.2.7.3 Autocalibration
      8. 7.2.8  Temperature Measurement
      9. 7.2.9  Overtemperature Indication
        1. 7.2.9.1 Overtemperature: Charge
        2. 7.2.9.2 Overtemperature: Discharge
      10. 7.2.10 Charging and Charge Termination Indication
      11. 7.2.11 X10 Mode
      12. 7.2.12 Remaining State of Charge LED Indication
      13. 7.2.13 Alert Signal
      14. 7.2.14 Communications
        1. 7.2.14.1 Authentication
        2. 7.2.14.2 Key Programming
        3. 7.2.14.3 Executing an Authentication Query
        4. 7.2.14.4 HDQ Single-Pin Serial Interface
        5. 7.2.14.5 I2C Interface
      15. 7.2.15 Power Control
        1. 7.2.15.1 Reset Functions
        2. 7.2.15.2 Wake-Up Comparator
        3. 7.2.15.3 Flash Updates
    3. 7.3 Device Functional Modes
      1. 7.3.1 NORMAL Mode
      2. 7.3.2 SLEEP Mode
      3. 7.3.3 FULL SLEEP Mode
  8. 8 Application and Implementation
    1. 8.1 Typical Applications
      1. 8.1.1 Design Requirements
      2. 8.1.2 Detailed Design Procedure
        1. 8.1.2.1 Step-by-Step Design Procedure
          1. 8.1.2.1.1 STEP 1: Review and Modify the Data Flash Configuration Data.
          2. 8.1.2.1.2 STEP 2: Review and Modify the Data Flash Configuration Registers.
          3. 8.1.2.1.3 STEP 3: Design and Configure the Voltage Divider.
          4. 8.1.2.1.4 STEP 4: Determine the Sense Resistor Value.
          5. 8.1.2.1.5 STEP 5: Review and Modify the Data Flash Gas Gauging Configuration, Data, and State.
          6. 8.1.2.1.6 STEP 6: Determine and Program the Chemical ID.
          7. 8.1.2.1.7 STEP 7: Calibrate.
          8. 8.1.2.1.8 STEP 8: Run an Optimization Cycle.
      3. 8.1.3 Battery Chemistry Configuration
        1. 8.1.3.1 Battery Chemistry Charge Termination
      4. 8.1.4 Replaceable Battery Systems
      5. 8.1.5 Digital Interface Options
      6. 8.1.6 Display Options
      7. 8.1.7 Application Curves
      8. 8.1.8 Special Applications
        1. 8.1.8.1 Operation Configuration B Register
        2. 8.1.8.2 Operation Configuration C Register
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Introduction
      2. 10.1.2 Power Supply Decoupling Capacitor
      3. 10.1.3 Capacitors
      4. 10.1.4 Communication Line Protection Components
    2. 10.2 Layout Example
      1. 10.2.1 Ground System
      2. 10.2.2 Kelvin Connections
      3. 10.2.3 Board Offset Considerations
      4. 10.2.4 ESD Spark Gap
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 接收文档更新通知
    3. 11.3 支持资源
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 术语表
  12. 12Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.1.4 Replaceable Battery Systems

The BQ34Z100 is also capable of being used as a system-side gauge where the actual battery can be removed and replaced from the system. However, there are limitations to this feature. The replacing battery should be of the same chemistry and close to the original design capacity of the one to be replaced, as this ensures that the other configuration options of the device are still valid.

The BQ34Z100 is enabled to have the option to learn new Impedance Track data in larger steps through the following configuration registers:

Table 8-5 Learning Configuration Registers for Replaceable Battery Packs (Host Side Gauge)
Class NameSubclass nameParameter NameDefault ValueUnits
Gas GaugingIT CfgMax Res Factor50n/a
Gas GaugingIT CfgMin Res Factor1n/a
Gas GaugingIT CfgMax Res Scale32000n/a
Gas GaugingIT CfgMin Res Scale1n/a
Gas GaugingIT CfgMax QMAX Change100n/a

If the BQ34Z100 and the battery are not designed to be separated, it is recommended to make the following changes. This helps to prevent erroneous measurements from causing the Impedance Track data to be updated to extreme values.

Table 8-6 Learning Configuration Registers for Non-Removable Battery Packs
Class NameSubclass nameParameter NameValueUnits
Gas GaugingIT CfgMax Res Factor15n/a
Gas GaugingIT CfgMin Res Factor3n/a
Gas GaugingIT CfgMax Res Scale5000n/a
Gas GaugingIT CfgMin Res Scale200n/a
Gas GaugingIT CfgMax QMAX Change30n/a
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