ZHCSJD3C july   2018  – april 2023 BQ25150

PRODUCTION DATA  

  1.   1
  2. 特性
  3. 应用
  4. 说明
  5. Revision History
  6. 说明(续)
  7. Device Key Default Settings
  8. Pin Configuration and Functions
  9. Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics
    6. 8.6 Timing Requirements
    7. 8.7 Typical Characteristics
  10. Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  Linear Charger and Power Path
        1. 9.3.1.1 Battery Charging Process
          1. 9.3.1.1.1 Pre-Charge
          2. 9.3.1.1.2 Fast Charge
          3. 9.3.1.1.3 Pre-Charge to Fast Charge Transitions and Charge Current Ramping
          4. 9.3.1.1.4 Termination
        2. 9.3.1.2 JEITA and Battery Temperature Dependent Charging
        3. 9.3.1.3 Input Voltage Based Dynamic Power Management (VINDPM) and Dynamic Power Path Management (DPPM)
        4. 9.3.1.4 Battery Supplement Mode
      2. 9.3.2  Protection Mechanisms
        1. 9.3.2.1 Input Over-Voltage Protection
        2. 9.3.2.2 Safety Timer and I2C Watchdog Timer
        3. 9.3.2.3 Thermal Protection and Thermal Charge Current Foldback
        4. 9.3.2.4 Battery Short and Over Current Protection
        5. 9.3.2.5 PMID Short Circuit
        6. 9.3.2.6 Maximum Allowable Charging Current (IMAX)
      3. 9.3.3  ADC
        1. 9.3.3.1 ADC Operation in Active Battery Mode and Low Power Mode
        2. 9.3.3.2 ADC Operation When VIN Present
        3. 9.3.3.3 ADC Measurements
        4. 9.3.3.4 ADC Programmable Comparators
      4. 9.3.4  VDD LDO
      5. 9.3.5  Load Switch / LDO Output and Control
      6. 9.3.6  PMID Power Control
      7. 9.3.7  MR Wake and Reset Input
        1. 9.3.7.1 MR Wake or Short Button Press Functions
        2. 9.3.7.2 MR Reset or Long Button Press Functions
      8. 9.3.8  14-Second Watchdog for HW Reset
      9. 9.3.9  Faults Conditions and Interrupts ( INT)
        1. 9.3.9.1 Flags and Fault Condition Response
      10. 9.3.10 Power Good ( PG) Pin
      11. 9.3.11 External NTC Monitoring (TS)
        1. 9.3.11.1 TS Thresholds
      12. 9.3.12 External NTC Monitoring (ADCIN)
      13. 9.3.13 I2C Interface
        1. 9.3.13.1 F/S Mode Protocol
    4. 9.4 Device Functional Modes
      1. 9.4.1 Ship Mode
      2. 9.4.2 Low Power
      3. 9.4.3 Active Battery
      4. 9.4.4 Charger/Adapter Mode
      5. 9.4.5 Power-Up/Down Sequencing
    5. 9.5 Register Map
      1. 9.5.1 I2C Registers
  11. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Input (IN/PMID) Capacitors
        2. 10.2.2.2 VDD, LDO Input and Output Capacitors
        3. 10.2.2.3 TS
        4. 10.2.2.4 IMAX Selection
        5. 10.2.2.5 Recommended Passive Components
      3. 10.2.3 Application Curves
  12. 11Power Supply Recommendations
  13. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  14. 13Device and Documentation Support
    1. 13.1 Device Support
      1. 13.1.1 第三方米6体育平台手机版_好二三四免责声明
    2. 13.2 Documentation Support
      1. 13.2.1 Related Documentation
    3. 13.3 接收文档更新通知
    4. 13.4 支持资源
    5. 13.5 Trademarks
    6. 13.6 静电放电警告
    7. 13.7 术语表
  15. 14Mechanical, Packaging, and Orderable Information

说明(续)

BQ25150 IC 集成了可以对小型电池进行快速准确充电的线性充电器。该器件支持高达 500 mA 的充电电流并支持低至 0.5 mA 的终止电流,从而实现最充分的充电。该器件采用标准锂离子充电曲线分三个阶段对电池进行充电:预充电、恒流和恒压调节。

该器件集成了高级电源路径管理和控制,使该器件可以为系统提供电源,同时甚至能够使用很差的适配器为电池充电。主机还可以通过 I2C 控制电源路径,允许它断开输入适配器和/或电池,而无需实际移除它们。单按钮输入无需单独的按钮控制器 IC,从而减少了整体解决方案占用空间。按钮输入可用于唤醒功能或重置系统。12 位有效 ADC 可实现精确的电池电压监控,并可用于实现低 Iq 监测,以监控电池运行状况。它还可用于使用连接到 TS 引脚的热敏电阻以及外部系统信号(通过 ADCIN 引脚)来测量电池温度。运行和关断期间的低静态电流有助于延长电池寿命。可通过 I2C 接口对输入电流限制、充电电流、LDO 输出电压和其他参数进行编程,从而使 BQ25150 成为非常灵活的充电解决方案。该器件包含一个基于电压的 JEITA 兼容(或标准热/冷)电池组热敏电阻监控输入 (TS),可监控电池温度并自动更改充电参数,从而防止电池在超出其安全温度范围的温度下充电。还可以通过 I2C 对温度阈值进行编程,从而使主机能够自定义热负荷曲线。该充电器针对 5V USB 输入进行了优化,具有 20V 的绝对最大容差,可承受线路瞬变。该器件还集成了一个用于为无线电或处理器提供静态轨的线性稳压器,可以通过 I2C 独立地为其提供电源并对其进行控制。