ZHCSBD3D July   2013  – August 2019 TPS63050 , TPS63051

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化原理图 (WCSP)
      2.      效率与输出电流间的关系
  4. 4 修订历史记录
  5. 5 Device Comparison Table
  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 Switching Characteristics
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagrams
    3. 8.3 Feature Description
      1. 8.3.1 Power Good
      2. 8.3.2 Overvoltage Protection
      3. 8.3.3 Undervoltage Lockout (UVLO)
      4. 8.3.4 Thermal Shutdown
      5. 8.3.5 Soft Start
      6. 8.3.6 Short Circuit Protection
    4. 8.4 Device Functional Modes
      1. 8.4.1 Control Loop Description
      2. 8.4.2 Power Save Mode Operation
      3. 8.4.3 Adjustable Current Limit
      4. 8.4.4 Device Enable
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Custom Design With WEBENCH® Tools
        2. 9.2.2.2 Output Filter Design
        3. 9.2.2.3 Inductor Selection
        4. 9.2.2.4 Capacitor selection
          1. 9.2.2.4.1 Input Capacitor
          2. 9.2.2.4.2 Output Capacitor
        5. 9.2.2.5 Setting the Output Voltage
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example (WCSP)
    3. 11.3 Layout Example (HotRod)
    4. 11.4 Thermal Considerations
  12. 12器件和文档支持
    1. 12.1 使用 WEBENCH® 工具创建定制设计
    2. 12.2 器件支持
      1. 12.2.1 第三方产品免责声明
    3. 12.3 相关链接
    4. 12.4 接收文档更新通知
    5. 12.5 社区资源
    6. 12.6 商标
    7. 12.7 静电放电警告
    8. 12.8 Glossary
  13. 13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

8.3.1 Power Good

The TPS6305x devices have a PG output. The power good goes high impedance once the output is above 95% of the nominal voltage, and is driven low once the output voltage falls below typically 90% of the nominal voltage. The PG pin is an open drain output and is specified to sink up to 0.1 mA. The power good output requires a pullup resistor connecting to any voltage rail less than 5.5 V. The power good is valid as long as the converter is enabled and VIN is present. The power good goes low when the device is in undervoltage lockout, in thermal shutdown or in current limit.

If EN is pulled low and one of the pins ILIM0 or ILIM1 is high, then the PG pin is low. If both pins, ILIM0 and ILIM1 are low, the PG is open drain. In this case the PG pin, follows its pullup voltage. If this is not desired, one of the two pins ILIM0 or ILIM1, must be set high. Table 1 lists the PG pin functionality.

Table 1. Power Good Settings

EN ILIM1 ILIM0 PG
0 1 1 0
0 1 0 0
0 0 1 0
0 0 0 Open Drain