ZHCSHD3L October   2017  – March 2025 BQ2980 , BQ2982

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 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 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
      1. 7.1.1 Device Configurability
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Overvoltage (OV) Status
      2. 7.3.2 Undervoltage (UV) Status
      3. 7.3.3 Overcurrent in Charge (OCC) Status
      4. 7.3.4 Overcurrent in Discharge (OCD) and Short Circuit in Discharge (SCD) Status
      5. 7.3.5 Overtemperature (OT) Status
      6. 7.3.6 Charge and Discharge Driver
      7. 7.3.7 CTR for FET Override and Device Shutdown
      8. 7.3.8 CTR for PTC Connection
      9. 7.3.9 ZVCHG (0V Charging)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power Modes
        1. 7.4.1.1 Power-On-Reset (POR)
        2. 7.4.1.2 NORMAL Mode
        3. 7.4.1.3 FAULT Mode
        4. 7.4.1.4 SHUTDOWN Mode
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Test Circuits for Device Evaluation
      2. 8.1.2 Test Circuit Diagrams
      3. 8.1.3 Using CTR as FET Driver On/Off Control
    2. 8.2 Typical Applications
      1. 8.2.1 BQ298xx Configuration 1: System-Controlled Reset/Shutdown Function
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Selection of Power FET
        4. 8.2.1.4 Application Curves
      2. 8.2.2 BQ298xx Configuration 2: CTR Function Disabled
      3. 8.2.3 BQ298xx Configuration 3: PTC Thermistor Protection
  10. 9 Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 第三方产品免责声明
    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 静电放电警告
    6. 11.6 术语表
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information

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5 Pin Configuration and Functions

BQ2980 BQ2982 RUG Package8-Pin X2QFNTop View Figure 5-1 RUG Package8-Pin X2QFNTop View
Table 5-1 Pin Functions
NUMBER NAME TYPE DESCRIPTION
1 BAT I(1) BAT voltage sensing input (connected to the battery side)
2 VDD P Supply voltage
3 VSS — Device ground
4 CS I Current sensing input (connect to PACK– side of the sense resistor)
5 CTR I Active high control pin to open FET drivers and shut down the device. It can be configured to enable an internal pull-up and connect the CTR pin to an external PTC for OT protection.
6 PACK I Pack voltage sensing pin (connected to the charger side, typically referred to as PACK+ and PACK–)
7 DSG O DSG FET driver
8 CHG O CHG FET driver
(1) I = input, O = output, P = power