ZHCSDG5A February   2015  – March 2015 TPS92512 , TPS92512HV

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用范围
  3. 3 说明
  4. 4 简化电路原理图
  5. 5 修订历史记录
  6. 6 Pin Configuration and 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 Timing Requirements
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Undervoltage Lockout and Low Power Shutdown (UVLO Pin)
      2. 8.3.2 Adjustable Switching Frequency (RT/CLK Pin)
      3. 8.3.3 Synchronizing the Switching Frequency to an External Clock (RT/CLK Pin)
      4. 8.3.4 Adjustable LED Current (IADJ and ISENSE Pins)
      5. 8.3.5 PWM Dimming (PDIM Pin)
      6. 8.3.6 External Compensation (COMP Pin)
      7. 8.3.7 Overcurrent Protection
      8. 8.3.8 Overtemperature Protection
    4. 8.4 Device Functional Modes
      1. 8.4.1 Start-Up
      2. 8.4.2 Minimum Pulse Width and Limitations
      3. 8.4.3 Maximum Duty Cycle and Bootstrap Voltage (BOOT)
      4. 8.4.4 Thermal Shutdown and Thermal Limitations
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Inductor Selection
      2. 9.1.2 Input Capacitor Selection
      3. 9.1.3 Output Capacitor Selection
      4. 9.1.4 Rectifier Diode Selection
      5. 9.1.5 Output Protection Clamp (Optional)
    2. 9.2 Typical Application
    3. 9.3 Design Requirements
    4. 9.4 Detailed Design Procedure
      1. 9.4.1 Standard Component Selection
      2. 9.4.2 Calculate UVLO Resistor Values
      3. 9.4.3 Calculate the RT Resistor Value (RRT)
      4. 9.4.4 Calculate the ISENSE Resistor Value (R(ISENSE))
      5. 9.4.5 Calculate the Inductor Value and Operating Parameters (L)
      6. 9.4.6 Calculate the Minimum Input Capacitance and the Required RMS Current Rating (CIN)
      7. 9.4.7 Calculate the Output Capacitor Value (COUT)
      8. 9.4.8 Calculate the Diode Power Dissipation (D)
    5. 9.5 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 相关链接
    2. 12.2 商标
    3. 12.3 静电放电警告
    4. 12.4 术语表
  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

10 Power Supply Recommendations

Use any DC output power supply with a maximum voltage high enough for the application. The power supply should have a current limit of at least 3A.
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