ZHCSL48 April   2020 LM5181-Q1

PRODUCTION DATA.  

1. 1 特性
2. 2 應用
3. 3 說明
   1.     Device Images
      1.      典型應用
      2.      典型效率 (VOUT = 5V)
4. 4 修訂歷史記錄
5. 5 說明 （續）
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 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  Integrated Power MOSFET
      2. 8.3.2  PSR Flyback Modes of Operation
      3. 8.3.3  Setting the Output Voltage
         1. 8.3.3.1 Diode Thermal Compensation
      4. 8.3.4  Control Loop Error Amplifier
      5. 8.3.5  Precision Enable
      6. 8.3.6  Configurable Soft Start
      7. 8.3.7  External Bias Supply
      8. 8.3.8  Minimum On-Time and Off-Time
      9. 8.3.9  Overcurrent Protection
      10. 8.3.10 Thermal Shutdown
   4. 8.4 Device Functional Modes
      1. 8.4.1 Shutdown Mode
      2. 8.4.2 Standby Mode
      3. 8.4.3 Active Mode
9. 9 Application and Implementation
   1. 9.1 Application Information
   2. 9.2 Typical Applications
      1. 9.2.1 Design 1: Wide VIN, Low IQ PSR Flyback Converter Rated at 5 V, 0.5 A
         1. 9.2.1.1 Design Requirements
         2. 9.2.1.2 Detailed Design Procedure
            1. 9.2.1.2.1  Custom Design With WEBENCH® Tools
            2. 9.2.1.2.2  Custom Design With Excel Quickstart Tool
            3. 9.2.1.2.3  Flyback Transformer – T1
            4. 9.2.1.2.4  Flyback Diode – DFLY
            5. 9.2.1.2.5  Zener Clamp Circuit – DF, DCLAMP
            6. 9.2.1.2.6  Output Capacitor – COUT
            7. 9.2.1.2.7  Input Capacitor – CIN
            8. 9.2.1.2.8  Feedback Resistor – RFB
            9. 9.2.1.2.9  Thermal Compensation Resistor – RTC
            10. 9.2.1.2.10 UVLO Resistors – RUV1, RUV2
            11. 9.2.1.2.11 Soft-Start Capacitor – CSS
      2. 9.2.2 Application Curves
10. 10Power Supply Recommendations
11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Examples
12. 12器件和文檔支持
    1. 12.1 器件支持
       1. 12.1.1 第三方產品免責聲明
       2. 12.1.2 開發支持
       3. 12.1.3 使用 WEBENCH® 工具創建定制設計方案
    2. 12.2 文檔支持
       1. 12.2.1 相關文檔
    3. 12.3 接收文檔更新通知
    4. 12.4 支持資源
    5. 12.5 商標
    6. 12.6 靜電放電警告
    7. 12.7 Glossary
13. 13機械、封裝和可訂購信息