ZHCS247C May   2011  – April 2018 TPS61260 , TPS61261

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 Handling Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Schematic and List of Components
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagrams
    3. 8.3 Feature Description
      1. 8.3.1 Controller Circuit
      2. 8.3.2 Synchronous Boost Operation
      3. 8.3.3 Power Save Mode
      4. 8.3.4 Device Enable
      5. 8.3.5 Softstart and Short Circuit Protection
    4. 8.4 Device Functional Modes
      1. 8.4.1 Undervoltage Lockout
      2. 8.4.2 Output Overvoltage Protection
    5. 8.5 Programming
      1. 8.5.1 Programming the Output Voltage
      2. 8.5.2 Programming the Output Current
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 TPS61260 3.3-V Output Application
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Inductor Selection
          2. 9.2.1.2.2 Capacitor Selection
            1. 9.2.1.2.2.1 Input Capacitor
            2. 9.2.1.2.2.2 Output Capacitor
        3. 9.2.1.3 TPS61260 3.3-V Output Application Performance Plots
      2. 9.2.2 TPS61261 Application as LED Driver
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 TPS61261 Application as LED Driver Performance Plots
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations
  12. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 文档支持
      1. 12.2.1 相关文档
    3. 12.3 相关链接
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 术语表
  13. 13机械、封装和可订购信息

8.4.1 Undervoltage Lockout

An undervoltage lockout function prevents device startup if the supply voltage on VIN is lower than the undervoltage lockout threshold defined in the Electrical Characteristics. When in operation, the device automatically shuts down the power stage if the voltage on VIN drops below the undervoltage lockout threshold. The device automatically restarts if the input voltage recovers to the minimum operating input voltage.

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