JAJSLE2 September   2021 TPSM560R6H

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 説明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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 (VIN = 12 V)
    7. 6.7 Typical Characteristics (VIN = 24 V)
    8. 6.8 Typical Characteristics (VIN = 48 V)
    9. 6.9 Typical Characteristics (VIN = 60 V)
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Adjustable Output Voltage (FB)
      2. 7.3.2 Minimum Input Capacitance
      3. 7.3.3 Minimum Output Capacitance
      4. 7.3.4 Precision Enable (EN), Undervoltage Lockout (UVLO), and Hysteresis (HYS)
      5. 7.3.5 Power Good (PGOOD)
      6. 7.3.6 Overcurrent Protection (OCP)
      7. 7.3.7 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Active Mode
      2. 7.4.2 Standby Mode
      3. 7.4.3 Shutdown Mode
  8. 8 Applications and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Custom Design With WEBENCH® Tools
        2. 8.2.2.2 Output Voltage Setpoint
        3. 8.2.2.3 Input Capacitor Selection
        4. 8.2.2.4 Output Capacitor Selection
        5. 8.2.2.5 Power-Good Signal
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
      1. 10.2.1 Theta JA Versus PCB Area
      2. 10.2.2 Package Specifications
      3. 10.2.3 EMI
        1. 10.2.3.1 EMI Plots
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Development Support
        1. 11.1.2.1 Custom Design With WEBENCH® Tools
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 サポート・リソース
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

10.2.1 Theta JA Versus PCB Area

The amount of PCB copper as well as airflow affects the thermal performance of the device. Figure 10-5 shows the effects of copper area and airflow on the junction-to-ambient thermal resistance (RθJA) of the TPSM560R6H. The junction-to-ambient thermal resistance versus PCB area is plotted for a 4-layer PCB.

To determine the required copper area for an application:

  1. Determine the maximum power dissipation of the device in the application by referencing the power dissipation graphs in the Typical Characteristics.
  2. Calculate the maximum θJA using Equation 3 and the maximum ambient temperature of the application.
    Equation 3. GUID-4DA1B26C-8EC9-458F-B3A9-D67AFA106E76-low.gif
  3. Reference Figure 10-5 to determine the minimum required PCB area for the application conditions.

GUID-34D66ED3-558B-429E-B254-5D8852D0EDD2-low.gifFigure 10-5 θJA Versus PCB Area