ZHCSBQ3B October   2013  – July 2014 TPS92411

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 修订历史记录
  5. 5 Pin Configuration and 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 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Overvoltage Protection (OVP)
      2. 7.3.2 Input Undervoltage Lockout (UVLO)
      3. 7.3.3 LED Capacitor
      4. 7.3.4 Blocking Diode
    4. 7.4 Device Functional Modes
      1. 7.4.1 Input UVLO
      2. 7.4.2 Operating with Internal Switch ON
      3. 7.4.3 Operating with Internal Switch OFF
      4. 7.4.4 Overvoltage Operation (TPS92411P)
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 120-VAC, Phase Dimmable 11.5-W Input with Discrete Linear Regulator
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Setting the Switching Thresholds (RSNS, RSET)
        3. 8.2.1.3 Application Curve
      2. 8.2.2 230-VAC, Phase Dimmable 16-W Input with Discrete Linear Regulator
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 相关链接
    2. 11.2 商标
    3. 11.3 静电放电警告
    4. 11.4 术语表
  12. 12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 Layout

10.1 Layout Guidelines

The TPS92411 allows for a simple layout, however some considerations should be taken. The RSET resistor should be connected directly between the RSET pin and VIN pin as close to the device as possible. The trace between the resistor and the RSET pin should be as short as possible. The trace from the RSNS pin to the RSNS resistor should also be as short as possible to minimize parasitic capacitances. The blocking diode should be placed between the DRAIN pin and the VIN pin and also located close to the device. Placement of the LED capacitor may depend on the physical design of the application, however it should be placed as close to the TPS92411 as the design allows to minimize parasitic inductances.

10.2 Layout Example

layoutex411DBV.gifFigure 16. Recommended Component Placement (DBV)
layoutex411DDA.gifFigure 17. Recommended Component Placement (DDA)