ZHCSVT2A April   2022  – April 2024 BQ76922

PRODUCTION DATA  

1.   1
2. 1 特性
3. 2 應用
4. 3 說明
5. 4 Device Comparison Table
6. 5 Pin Configuration and Functions
7. 6 Specifications
   1. 6.1  Absolute Maximum Ratings
   2. 6.2  ESD Ratings
   3. 6.3  Recommended Operating Conditions
   4. 6.4  Thermal Information BQ76922
   5. 6.5  Supply Current
   6. 6.6  Digital I/O
   7. 6.7  LD Pin
   8. 6.8  Precharge (PCHG) and Predischarge (PDSG) FET Drive
   9. 6.9  FUSE Pin Functionality
   10. 6.10 REG18 LDO
   11. 6.11 REG0 Pre-regulator
   12. 6.12 REG1 LDO
   13. 6.13 Voltage References
   14. 6.14 Coulomb Counter
   15. 6.15 Coulomb Counter Digital Filter (CC1)
   16. 6.16 Current Measurement Digital Filter (CC2)
   17. 6.17 Current Wake Detector
   18. 6.18 Analog-to-Digital Converter
   19. 6.19 Cell Balancing
   20. 6.20 Cell Open Wire Detector
   21. 6.21 Internal Temperature Sensor
   22. 6.22 Thermistor Measurement
   23. 6.23 Internal Oscillators
   24. 6.24 High-side NFET Drivers
   25. 6.25 Comparator-Based Protection Subsystem
   26. 6.26 Timing Requirements – I2C Interface, 100kHz Mode
   27. 6.27 Timing Requirements – I2C Interface, 400kHz Mode
   28. 6.28 Timing Requirements – HDQ Interface
   29. 6.29 Interface Timing Diagrams
   30. 6.30 Typical Characteristics
8. 7 Detailed Description
   1. 7.1  Overview
   2. 7.2  Functional Block Diagram
   3. 7.3  Diagnostics
   4. 7.4  Device Configuration
      1. 7.4.1 Commands and Subcommands
      2. 7.4.2 Configuration Using OTP or Registers
      3. 7.4.3 Device Security
      4. 7.4.4 Scratchpad Memory
   5. 7.5  Measurement Subsystem
      1. 7.5.1  Voltage Measurement
         1. 7.5.1.1 Voltage Measurement Schedule
         2. 7.5.1.2 Using VC Pins for Cells Versus Interconnect
         3. 7.5.1.3 Cell 1 Voltage Validation During SLEEP Mode
      2. 7.5.2  General Purpose ADCIN Functionality
      3. 7.5.3  Coulomb Counter and Digital Filters
      4. 7.5.4  Synchronized Voltage and Current Measurement
      5. 7.5.5  Internal Temperature Measurement
      6. 7.5.6  Thermistor Temperature Measurement
      7. 7.5.7  Factory Trim of Voltage ADC
      8. 7.5.8  Voltage Calibration (ADC Measurements)
      9. 7.5.9  Voltage Calibration (COV and CUV Protections)
      10. 7.5.10 Current Calibration
      11. 7.5.11 Temperature Calibration
   6. 7.6  Primary and Secondary Protection Subsystems
      1. 7.6.1 Protections Overview
      2. 7.6.2 Primary Protections
      3. 7.6.3 Secondary Protections
      4. 7.6.4 High-Side NFET Drivers
      5. 7.6.5 Protection FETs Configuration and Control
         1. 7.6.5.1 FET Configuration
         2. 7.6.5.2 PRECHARGE and PREDISCHARGE Modes
      6. 7.6.6 Load Detect Functionality
   7. 7.7  Device Hardware Features
      1. 7.7.1  Voltage References
      2. 7.7.2  ADC Multiplexer
      3. 7.7.3  LDOs
         1. 7.7.3.1 Preregulator Control
         2. 7.7.3.2 REG1 LDO Control
      4. 7.7.4  Standalone Versus Host Interface
      5. 7.7.5  Multifunction Pin Controls
      6. 7.7.6  RST_SHUT Pin Operation
      7. 7.7.7  CFETOFF, DFETOFF, and BOTHOFF Pin Functionality
      8. 7.7.8  ALERT Pin Operation
      9. 7.7.9  Fuse Drive
      10. 7.7.10 Cell Open Wire
      11. 7.7.11 Low Frequency Oscillator
      12. 7.7.12 High Frequency Oscillator
   8. 7.8  Device Functional Modes
      1. 7.8.1 Overview
      2. 7.8.2 NORMAL Mode
      3. 7.8.3 SLEEP Mode
      4. 7.8.4 DEEPSLEEP Mode
      5. 7.8.5 SHUTDOWN Mode
      6. 7.8.6 CONFIG_UPDATE Mode
   9. 7.9  Serial Communications Interface
      1. 7.9.1 Serial Communications Overview
      2. 7.9.2 I2C Communications
      3. 7.9.3 HDQ Communications
   10. 7.10 Cell Balancing
       1. 7.10.1 Cell Balancing Overview
9. 8 Application and Implementation
   1. 8.1 Application Information
   2. 8.2 Typical Applications
      1. 8.2.1 Design Requirements (Example)
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Performance Plot
      4. 8.2.4 Calibration Process
   3. 8.3 Random Cell Connection Support
   4. 8.4 Startup Timing
   5. 8.5 FET Driver Turn-Off
   6. 8.6 Unused Pins
10. 9 Power Supply Requirements
11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
12. 11Device and Documentation Support
    1. 11.1 第三方產品免責聲明
    2. 11.2 Documentation Support
    3. 11.3 Trademarks
    4. 11.4 靜電放電警告
    5. 11.5 術語表
13. 12Revision History
14. 13Mechanical, Packaging, Orderable Information