ZHCSDT4D June   2015  – September 2020 BQ29209-Q1

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Device Options
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Recommended Cell Balancing Configurations
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
      1. 8.1.1 Voltage Protection
      2. 8.1.2 Cell Balancing
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Protection (OUT) Timing
      2. 8.3.2 Cell Voltage > VPROTECT
      3. 8.3.3 Cell Connection Sequence
      4. 8.3.4 Cell Balance Enable Control
      5. 8.3.5 Cell Balance Configuration
      6. 8.3.6 Cell Imbalance Auto-Detection (Via Cell Voltage)
      7. 8.3.7 Customer Test Mode
      8. 8.3.8 Test Conditions
    4. 8.4 Device Functional Modes
      1. 8.4.1 NORMAL Mode
      2. 8.4.2 PROTECTION Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Battery Connection
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curve
    3. 9.3 System Example
      1. 9.3.1 External Cell Balancing
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
    2. 12.2 接收文档更新通知
    3. 12.3 支持资源
    4. 12.4 Trademarks
    5. 12.5 静电放电警告
    6. 12.6 术语表
  13. 13Mechanical, Packaging, and Orderable Information

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • DRB|8
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.3.5 Cell Balance Configuration

The following cell balancing details relate to Figure 8-2.

Figure 8-2 Simplified Schematic for Cell Balancing Description

The cell balancing current may be calculated as follows:

For Cell 1 balancing current, ICB1:

Equation 1.

For Cell 2 balancing current, ICB2:

Equation 2.

Where:

RCBext = resistor connected between the top of Cell 1 and the VC1_CB pin

RIN1 = resistor connected between the top of Cell 1 and the VC1 pin

RIN2 = resistor connected between the top of Cell 2 and the VC2 pin

RVDD = resistor connected between the top of Cell 2 and the VDD pin