ZHCSRB7A December   2022  – October 2023 BQ27427

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Supply Current
    6. 5.6  Digital Input and Output DC Characteristics
    7. 5.7  LDO Regulator, Wake-up, and Auto-Shutdown DC Characteristics
    8. 5.8  LDO Regulator, Wake-up, and Auto-Shutdown AC Characteristics
    9. 5.9  ADC (Temperature and Cell Measurement) Characteristics
    10. 5.10 Integrating ADC (Coulomb Counter) Characteristics
    11. 5.11 Integrated Sense Resistor Characteristics, –40°C to 85 °C
    12. 5.12 I2C-Compatible Interface Communication Timing Characteristics
    13. 5.13 SHUTDOWN and WAKE-UP Timing
    14. 5.14 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Communications
        1. 6.3.1.1 I2C Interface
        2. 6.3.1.2 I2C Time Out
        3. 6.3.1.3 I2C Command Waiting Time
        4. 6.3.1.4 I2C Clock Stretching
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Applications
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 BAT Voltage Sense Input
        2. 7.2.2.2 Integrated LDO Capacitor
      3. 7.2.3 External Thermistor Support
      4. 7.2.4 Application Curves
  9. 8 Power Supply Recommendation
    1. 8.1 Power Supply Decoupling
  10. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 第三方米6体育平台手机版_好二三四免责声明
      2. 10.1.2 Related Documentation
    2. 10.2 Trademarks
    3. 10.3 静电放电警告
    4. 10.4 术语表
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

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订购信息

5.11 Integrated Sense Resistor Characteristics, –40°C to 85 °C

TA = –40°C to 85°C; typical values at TA = 30°C and VREGIN = 3.6 V (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SRXRES(2) Resistance of Integrated Sense Resistor from SRX to VSS TA = 30°C 7 mΩ
ISRX(1) Recommended sense resistor input current. Long term RMS, average device utilization
 2000 mA
Peak RMS current, 10% device utilization, –40°C to 70°C(3) 3500
Peak RMS current, 10% device utilization, –40°C to 85°C(3) 2500 mA
Peak pulsed current, 250 ms max, 1% device utilization, –40°C to 70°C(3) 4500
Peak pulsed current, 250 ms max, 1% device utilization, –40°C to 85°C(3) 3500 mA
(1) Specified by design; not tested in production.
(2) Firmware compensation applied for temperature coefficient of resistor.
(3) Device utilization is the longterm usage profile at a specific condition compared to the average condition.
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