JAJSDT4C May   2017  – September 2021 BQ25606

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 概要 (続き)
  6. 6 Device Comparison Table
  7. 7 Pin Configuration and Functions
  8. 8 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
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Device Power Up from Battery without Input Source
      2. 9.3.2 Power Up from Input Source
        1. 9.3.2.1 Power Up REGN Regulation
        2. 9.3.2.2 Poor Source Qualification
        3. 9.3.2.3 Input Source Type Detection
          1. 9.3.2.3.1 D+/D– Detection Sets Input Current Limit in BQ25606
        4. 9.3.2.4 Input Voltage Limit Threshold Setting (VINDPM Threshold)
        5. 9.3.2.5 Converter Power Up
      3. 9.3.3 Boost Mode Operation From Battery
      4. 9.3.4 Power Path Management
        1. 9.3.4.1 Narrow VDC Architecture
        2. 9.3.4.2 Dynamic Power Management
        3. 9.3.4.3 Supplement Mode
      5. 9.3.5 Battery Charging Management
        1. 9.3.5.1 Autonomous Charging Cycle
        2. 9.3.5.2 Charging Termination
        3. 9.3.5.3 Thermistor Qualification
        4. 9.3.5.4 JEITA Guideline Compliance During Charging Mode
        5. 9.3.5.5 Boost Mode Thermistor Monitor during Battery Discharge Mode
        6. 9.3.5.6 Charging Safety Timer
      6. 9.3.6 Status Outputs ( PG, STAT)
        1. 9.3.6.1 Power Good Indicator (PG Pin)
        2. 9.3.6.2 Charging Status Indicator (STAT)
      7. 9.3.7 Protections
        1. 9.3.7.1 Input Current Limit
        2. 9.3.7.2 Voltage and Current Monitoring in Converter Operation
          1. 9.3.7.2.1 Voltage and Current Monitoring in Buck Mode
            1. 9.3.7.2.1.1 Input Overvoltage (ACOV)
            2. 9.3.7.2.1.2 System Overvoltage Protection (SYSOVP)
        3. 9.3.7.3 Voltage and Current Monitoring in Boost Mode
          1. 9.3.7.3.1 VBUS Soft Start
          2. 9.3.7.3.2 VBUS Output Protection
          3. 9.3.7.3.3 Boost Mode Overvoltage Protection
        4. 9.3.7.4 Thermal Regulation and Thermal Shutdown
          1. 9.3.7.4.1 Thermal Protection in Buck Mode
          2. 9.3.7.4.2 Thermal Protection in Boost Mode
        5. 9.3.7.5 Battery Protection
          1. 9.3.7.5.1 Battery Overvoltage Protection (BATOVP)
          2. 9.3.7.5.2 Battery Overdischarge Protection
          3. 9.3.7.5.3 System Overcurrent Protection
  10. 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 Inductor Selection
        2. 10.2.2.2 Input Capacitor
        3. 10.2.2.3 Output Capacitor
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Device Support
      1. 13.1.1 Third-Party Products Disclaimer
    2. 13.2 Receiving Notification of Documentation Updates
    3. 13.3 サポート・リソース
    4. 13.4 Trademarks
    5. 13.5 Electrostatic Discharge Caution
    6. 13.6 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

9.3.1 Device Power Up from Battery without Input Source

If only battery is present and the voltage is above depletion threshold (VBAT_DPL_RISE), the BATFET turns on and connects battery to system. The REGN stays off to minimize the quiescent current. The low RDSON of BATFET and the low quiescent current on BAT minimize the conduction loss and maximize the battery run time.

The device always monitors the discharge current through BATFET (Supplement Mode). When the system is overloaded or shorted (IBAT > IBATFET_OCP), the device turns off BATFET immediately until the input source plugs in again.