ZHCSKH8C December   2009  – December 2019 BQ24072T , BQ24075T , BQ24079T

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     简化电路
  4. 4 修订历史记录
  5. 5 说明 （续）
  6. 6 Device Options
  7. 7 Pin Configuration and Functions
    1.     Pin 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 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  Undervoltage Lockout (UVLO)
      2. 9.3.2  Overvoltage Protection (OVP)
      3. 9.3.3  Dynamic Power-Path Management
      4. 9.3.4  Battery Charging
      5. 9.3.5  Charge Current Translator
      6. 9.3.6  Battery Detection and Recharge
      7. 9.3.7  Termination Disable (TD Input, BQ24072T)
      8. 9.3.8  Battery Disconnect (SYSOFF Input)
      9. 9.3.9  Dynamic Charge Timers (TMR Input)
      10. 9.3.10 Status Indicators (PGOOD, CHG)
      11. 9.3.11 Thermal Regulation and Thermal Shutdown
      12. 9.3.12 Battery Pack Temperature Monitoring
    4. 9.4 Device Functional Modes
      1. 9.4.1 Input Source Connected (Adapter or USB)
        1. 9.4.1.1 Input DPM Mode (VIN-DPM)
        2. 9.4.1.2 DPPM Mode
        3. 9.4.1.3 Battery Supplement Mode
      2. 9.4.2 Input Source Not Connected
  10. 10Applications and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 Using the BQ24075T, BQ24079T to Disconnect the Battery from the System
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
          1. 10.2.1.2.1 Program the Fast Charge Current (ISET):
          2. 10.2.1.2.2 Program the Input Current Limit (ILIM):
          3. 10.2.1.2.3 Program 6.25-hour Fast-Charge Safety Timer (TMR):
          4. 10.2.1.2.4 TS Function:
          5. 10.2.1.2.5 CHG and PGOOD LED Status:
          6. 10.2.1.2.6 Processor Monitoring Status:
          7. 10.2.1.2.7 System ON/OFF (SYSOFF):
          8. 10.2.1.2.8 Selecting IN, OUT and BAT Capacitors
        3. 10.2.1.3 Application Curves
      2. 10.2.2 BQ24072T in a Host Controlled Charger Application
        1. 10.2.2.1 Design Requirements
        2. 10.2.2.2 Detailed Design Procedures
          1. 10.2.2.2.1 Termination Disable:
        3. 10.2.2.3 Application Curves
  11. 11Power Supply Recommendations
    1. 11.1 Power On
      1. 11.1.1 Half-Wave Adapters
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
    3. 12.3 Thermal Package
  13. 13器件和文档支持
    1. 13.1 器件支持
      1. 13.1.1 第三方产品免责声明
    2. 13.2 相关链接
    3. 13.3 接收文档更新通知
    4. 13.4 支持资源
    5. 13.5 商标
    6. 13.6 静电放电警告
    7. 13.7 Glossary
  14. 14机械、封装和可订购信息

封装选项

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

8.6 Typical Characteristics

VIN = 6 V, EN1 = 1, EN2 = 0, TA = 25°C, unless otherwise noted.
BQ24072T BQ24075T BQ24079T ibat_v_temp_lus810.gif
Figure 1. Thermal Regulation
BQ24072T BQ24075T BQ24079T do2_tj_lus810.gif
Figure 3. Dropout Voltage vs Temperature
BQ24072T BQ24075T BQ24079T vo_tj_lus810.gif
Figure 5. BQ24072T Output Regulation Voltage vs Temperature
BQ24072T BQ24075T BQ24079T vbat_tj_lus810.gif
Figure 7. BQ24075T BAT Regulation Voltage vs Temperature
BQ24072T BQ24075T BQ24079T ovp2_tj_lus810.gif
Figure 9. Overvoltage ProtectionThreshold vs Temperature
BQ24072T BQ24075T BQ24079T ibat_vbat_lus810.gif
Figure 11. Fastcharge Current vs Battery Voltage
BQ24072T BQ24075T BQ24079T ibat3_vbat_lus810.gif
Figure 13. Fastcharge Current vs Battery Voltage
BQ24072T BQ24075T BQ24079T do_tj_lus810.gif
Figure 2. Dropout Voltage vs Temperature
BQ24072T BQ24075T BQ24079T vo_vbat_lus810.gif
Figure 4. BQ24072T Output Regulation Voltage vs Battery Voltage
BQ24072T BQ24075T BQ24079T vo3_tj_lus810.gif
Figure 6. Output Regulation Voltage vs Temperature
BQ24072T BQ24075T BQ24079T bat_tj079t_lus937.gif
Figure 8. BQ24079T Battery Regulation Voltage vs Temperature
BQ24072T BQ24075T BQ24079T il_vi_lus810.gif
Figure 10. Input Current Limit vs Input Voltage
BQ24072T BQ24075T BQ24079T ibat2_vbat_lus810.gif
Figure 12. Fastcharge Current vs Battery Voltage
BQ24072T BQ24075T BQ24079T ibat4_vbat_lus810.gif
Figure 14. Precharge Current vs Battery Voltage