ZHCSAB6E October   2012  – May 2018 BQ27545-G1

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化原理图
  4. 4 修订历史记录
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information
    5. 7.5  Electrical Characteristics: Supply Current
    6. 7.6  Electrical Characteristics: Digital Input and Output DC
    7. 7.7  Electrical Characteristics: Power-On Reset
    8. 7.8  Electrical Characteristics: 2.5-V LDO Regulator
    9. 7.9  Electrical Characteristics: Internal Clock Oscillators
    10. 7.10 Electrical Characteristics: Integrating ADC (Coulomb Counter) Characteristics
    11. 7.11 Electrical Characteristics: ADC (Temperature and Cell Voltage)
    12. 7.12 Electrical Characteristics: Data Flash Memory
    13. 7.13 HDQ Communication Timing Characteristics
    14. 7.14 I2C-Compatible Interface Timing Characteristics
    15. 7.15 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Fuel Gauging
      2. 8.3.2 Impedance Track Variables
        1. 8.3.2.1  Load Mode
        2. 8.3.2.2  Load Select
        3. 8.3.2.3  Reserve Cap-mAh
        4. 8.3.2.4  Reserve Energy
        5. 8.3.2.5  Design Energy Scale
        6. 8.3.2.6  Dsg Current Threshold
        7. 8.3.2.7  Chg Current Threshold
        8. 8.3.2.8  Quit Current, Dsg Relax Time, Chg Relax Time, and Quit Relax Time
        9. 8.3.2.9  Qmax
        10. 8.3.2.10 Update Status
        11. 8.3.2.11 Avg I Last Run
        12. 8.3.2.12 Avg P Last Run
        13. 8.3.2.13 Delta Voltage
        14. 8.3.2.14 Ra Tables and Ra Filtering Related Parameters
        15. 8.3.2.15 MaxScaleBackGrid
        16. 8.3.2.16 Max DeltaV, Min DeltaV
        17. 8.3.2.17 Qmax Max Delta %
        18. 8.3.2.18 Fast Resistance Scaling
        19. 8.3.2.19 StateOfCharge() Smoothing
        20. 8.3.2.20 DeltaV Max Delta
        21. 8.3.2.21 Lifetime Data Logging Parameters
    4. 8.4 Device Functional Modes
      1. 8.4.1  System Control Function
        1. 8.4.1.1 SHUTDOWN Mode
        2. 8.4.1.2 INTERRUPT Mode
        3. 8.4.1.3 Battery Level Indication
        4. 8.4.1.4 Internal Short Detection
        5. 8.4.1.5 Tab Disconnection Detection
      2. 8.4.2  Temperature Measurement and the TS Input
      3. 8.4.3  Over-Temperature Indication
        1. 8.4.3.1 Over-Temperature: Charge
        2. 8.4.3.2 Over-Temperature: Discharge
      4. 8.4.4  Charging and Charge Termination Indication
        1. 8.4.4.1 Detection Charge Termination
        2. 8.4.4.2 Charge Inhibit
      5. 8.4.5  Power Modes
        1. 8.4.5.1 NORMAL Mode
        2. 8.4.5.2 SLEEP Mode
        3. 8.4.5.3 FULLSLEEP Mode
        4. 8.4.5.4 HIBERNATE Mode
      6. 8.4.6  Power Control
        1. 8.4.6.1 Reset Functions
        2. 8.4.6.2 Wake-Up Comparator
        3. 8.4.6.3 Flash Updates
      7. 8.4.7  Autocalibration
      8. 8.4.8  Communications
        1. 8.4.8.1 Authentication
        2. 8.4.8.2 Key Programming (Data Flash Key)
        3. 8.4.8.3 Key Programming (Secure Memory Key)
        4. 8.4.8.4 Executing An Authentication Query
      9. 8.4.9  HDQ Single-Pin Serial Interface
      10. 8.4.10 HDQ Host Interruption Feature
        1. 8.4.10.1 Low Battery Capacity
        2. 8.4.10.2 Temperature
    5. 8.5 Programming
      1. 8.5.1 I2C Interface
        1. 8.5.1.1 I2C Time-Out
        2. 8.5.1.2 I2C Command Waiting Time
        3. 8.5.1.3 I2C Clock Stretching
      2. 8.5.2 Data Commands
        1. 8.5.2.1 Standard Data Commands
          1. 8.5.2.1.1  Control(): 0x00 and 0x01
            1. 8.5.2.1.1.1  CONTROL_STATUS: 0x0000
            2. 8.5.2.1.1.2  DEVICE_TYPE: 0x0001
            3. 8.5.2.1.1.3  FW_VERSION: 0x0002
            4. 8.5.2.1.1.4  HW_VERSION: 0x0003
            5. 8.5.2.1.1.5  RESET_DATA: 0x0005
            6. 8.5.2.1.1.6  PREV_MACWRITE: 0x0007
            7. 8.5.2.1.1.7  CHEM_ID: 0x0008
            8. 8.5.2.1.1.8  BOARD_OFFSET: 0x0009
            9. 8.5.2.1.1.9  CC_OFFSET: 0x000a
            10. 8.5.2.1.1.10 CC_OFFSET_SAVE: 0x000b
            11. 8.5.2.1.1.11 DF_VERSION: 0x000c
            12. 8.5.2.1.1.12 SET_FULLSLEEP: 0x0010
            13. 8.5.2.1.1.13 SET_HIBERNATE: 0x0011
            14. 8.5.2.1.1.14 CLEAR_HIBERNATE: 0x0012
            15. 8.5.2.1.1.15 SET_SHUTDOWN: 0x0013
            16. 8.5.2.1.1.16 CLEAR_SHUTDOWN: 0x0014
            17. 8.5.2.1.1.17 SET_HDQINTEN: 0x0015
            18. 8.5.2.1.1.18 CLEAR_HDQINTEN: 0x0016
            19. 8.5.2.1.1.19 STATIC_CHEM_DF_CHKSUM: 0x0017
            20. 8.5.2.1.1.20 SEALED: 0x0020
            21. 8.5.2.1.1.21 IT ENABLE: 0x0021
            22. 8.5.2.1.1.22 RESET: 0x0041
            23. 8.5.2.1.1.23 EXIT_CAL: 0x0080
            24. 8.5.2.1.1.24 Enter_cal: 0x0081
            25. 8.5.2.1.1.25 OFFSET_CAL: 0x0082
          2. 8.5.2.1.2  AtRate(): 0x02 and 0x03
          3. 8.5.2.1.3  UnfilteredSOC(): 0x04 And 0x05
          4. 8.5.2.1.4  Temperature(): 0x06 And 0x07
          5. 8.5.2.1.5  Voltage(): 0x08 And 0x09
          6. 8.5.2.1.6  Flags(): 0x0a And 0x0b
          7. 8.5.2.1.7  NominalAvailableCapacity(): 0x0c and 0x0d
          8. 8.5.2.1.8  FullAvailableCapacity(): 0x0e and 0x0f
          9. 8.5.2.1.9  RemainingCapacity(): 0x10 and 0x11
          10. 8.5.2.1.10 FullChargeCapacity(): 0x12 and 0x13
          11. 8.5.2.1.11 AverageCurrent(): 0x14 and 0x15
          12. 8.5.2.1.12 TimeToEmpty(): 0x16 And 0x17
          13. 8.5.2.1.13 FilteredFCC(): 0x18 And 0x19
          14. 8.5.2.1.14 StandbyCurrent(): 0x1a And 0x1b
          15. 8.5.2.1.15 UnfilteredFCC(): 0x1c And 0x1d
          16. 8.5.2.1.16 MaxLoadCurrent(): 0x1e And 0x1f
          17. 8.5.2.1.17 UnfilteredRM(): 0x20 And 0x21
          18. 8.5.2.1.18 FilteredRM(): 0x22 And 0x23
          19. 8.5.2.1.19 AveragePower(): 0x24 And 0x25
          20. 8.5.2.1.20 InternalTemperature(): 0x28 And 0x29
          21. 8.5.2.1.21 CycleCount(): 0x2a And 0x2b
          22. 8.5.2.1.22 StateOfCharge(): 0x2c And 0x2d
          23. 8.5.2.1.23 StateOfHealth(): 0x2e And 0x2f
          24. 8.5.2.1.24 PassedCharge(): 0x34 And 0x35
          25. 8.5.2.1.25 Dod0(): 0x36 And 0x37
          26. 8.5.2.1.26 SelfDischargeCurrent(): 0x38 And 0x39
      3. 8.5.3 Extended Data Commands
        1. 8.5.3.1  PackConfig(): 0x3a and 0x3b
        2. 8.5.3.2  DesignCapacity(): 0x3c And 0x3d
        3. 8.5.3.3  DataFlashClass(): 0x3e
        4. 8.5.3.4  DataFlashBlock(): 0x3f
        5. 8.5.3.5  BlockData(): 0x40 Through 0x5f
        6. 8.5.3.6  BlockDataChecksum(): 0x60
        7. 8.5.3.7  BlockDataControl(): 0x61
        8. 8.5.3.8  DeviceNameLength(): 0x62
        9. 8.5.3.9  DeviceName(): 0x63 Through 0x6c
        10. 8.5.3.10 Reserved: 0x6a Through 0x7f
      4. 8.5.4 Data Flash Interface
        1. 8.5.4.1 Accessing the Data Flash
        2. 8.5.4.2 Manufacturer Information Blocks
      5. 8.5.5 Access Modes
      6. 8.5.6 Sealing and Unsealing Data Flash
      7. 8.5.7 Data Flash Summary
    6. 8.6 Register Maps
      1. 8.6.1 Pack Configuration Register
        1. Table 1. Pack Configuration Bit Definition
      2. 8.6.2 Pack Configuration B Register
        1. Table 2. Pack Configuration B Bit Definition
      3. 8.6.3 Pack Configuration C Register
        1. Table 3. Pack Configuration C Bit Definition
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 BAT Voltage Sense Input
        2. 9.2.2.2 SRP and SRN Current Sense Inputs
        3. 9.2.2.3 Sense Resistor Selection
        4. 9.2.2.4 TS Temperature Sense Input
        5. 9.2.2.5 Thermistor Selection
        6. 9.2.2.6 REGIN Power Supply Input Filtering
        7. 9.2.2.7 VCC LDO Output Filtering
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Power Supply Decoupling
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Sense Resistor Connections
      2. 11.1.2 Thermistor Connections
      3. 11.1.3 High-Current and Low-Current Path Separation
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 文档支持
      1. 12.1.1 相关文档
    2. 12.2 社区资源
    3. 12.3 商标
    4. 12.4 静电放电警告
    5. 12.5 术语表
  13. 13机械、封装和可订购信息

3 说明

bq27545-G1 锂离子电池电量计是一款微控制器外设，此外设能够提供针对单节锂离子电池组的电量计量。此器件只需开发较少的系统微控制器固件即可实现精确的电池电量计量。bq27545-G1 安装于电池组内或者带有一个嵌入式电池（不可拆卸）的系统主板上。

bq27545-G1 使用已经获得专利的 Impedance Track™ 算法来进行电量计量，并提供诸如剩余电量 (mAh)、充电状态 (%)、续航时间（最小值）、电池电压 (mV) 和温度 (°C) 等信息。该器件还提供针对内部短路或电池端子断开事件的检测功能。

bq27545-G1 还 具有 针对安全电池组认证（使用 SHA-1/HMAC 认证算法）的集成支持功能。

该器件还采用 15 焊球 Nano-Free™ DSBGA 封装 (2.61 mm × 1.96 mm)，非常适合空间受限的 至关重要。

器件信息(1)

器件型号 封装 封装尺寸（标称值）
bq27545-G1 YZF (15) 2.61 mm × 1.96 mm
  1. 如需了解所有可用封装，请参阅米6体育平台手机版_好二三四说明书末尾的可订购米6体育平台手机版_好二三四附录。
千亿体育app官网登录(中国)官方网站IOS/安卓通用版/手机APP | 米乐app下载官网（中国）|ios|Android/通用版APP最新版 | 米乐|米乐·M6（中国大陆）官方网站 | 千亿体育登陆地址 | 华体会体育（中国）HTH·官方网站 | 千赢qy国际_全站最新版千赢qy国际V6.2.14安卓/IOS下载 | 18新利网v1.2.5|中国官方网站 | bob电竞真人（中国官网）安卓/ios苹果/电脑版【1.97.95版下载】 | 千亿体育app官方下载(中国)官方网站IOS/安卓/手机APP下载安装 |