ZHCSQ82 September   2022 BQ25176M

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Device Power Up from Input Source
        1. 7.3.1.1 ISET Pin Detection
        2. 7.3.1.2 VSET Pin Detection
        3. 7.3.1.3 Charger Power Up
      2. 7.3.2 Battery Charging Features
        1. 7.3.2.1 Lithium-Ion Battery Charging Profile
        2. 7.3.2.2 Input Voltage Based Dynamic Power Management (VINDPM)
        3. 7.3.2.3 Charge Termination and Battery Recharge
      3. 7.3.3 Status Outputs ( PG, STAT)
        1. 7.3.3.1 Power Good Indicator (PG Pin)
        2. 7.3.3.2 Charging Status Indicator (STAT)
      4. 7.3.4 Protection Features
        1. 7.3.4.1 Input Overvoltage Protection (VIN_OV)
        2. 7.3.4.2 Output Overvoltage Protection (VOUT_OVP)
        3. 7.3.4.3 Output Overcurrent Protection (IOUT_OCP)
        4. 7.3.4.4 Thermal Regulation and Thermal Shutdown (TREG and TSHUT)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown or Undervoltage Lockout (UVLO)
      2. 7.4.2 Sleep Mode
      3. 7.4.3 Active Mode
        1. 7.4.3.1 Standby Mode
      4. 7.4.4 Fault Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Li-Ion Charger Design Example
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 LiFePO4 Charger Design Example
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 第三方米6体育平台手机版_好二三四免责声明
    2. 11.2 接收文档更新通知
    3. 11.3 支持资源
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 术语表
  12. 12Mechanical, Packaging, and Orderable Information

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8.1 Application Information

A typical application consists of the device configured as a standalone battery charger for single-cell Lithium-Ion, Li-Polymer, or LiFePO4 chemistries. The charge voltage is configured using a pull-down resistor on the VSET pin. The charge current is configured using a pull-down resistor on the ISET pin. Pulling the BIAS pin below VBIAS_ENZ disables the charging function. The charger and input supply status is reported via the STAT and PG pins.
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