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 第三方产品免责声明
      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

封装选项

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订购信息

5.7 LDO Regulator, Wake-up, and Auto-Shutdown DC Characteristics

TA = –40°C to 85°C, typical values at TA = 30°C and VREGIN = 3.6 V (unless otherwise noted)
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
VBATBAT pin regulator input2.454.5V
VDDRegulator output voltage1.85V
UVLOIT+VBAT undervoltage lock-out
LDO wake-up rising threshold		2V
UVLOIT–VBAT undervoltage lock-out
LDO auto-shutdown falling threshold		1.95V
VWU+(1)GPOUT (input) LDO Wake-up rising edge threshold(2)LDO Wake-up from SHUTDOWN mode1.2V
(1) Specified by design. Not production tested.
(2) If the device is commanded to SHUTDOWN via I2C with VBAT > UVLOIT+, a wake-up rising edge trigger is required on GPOUT.