ZHCSHZ8B april   2018  – february 2023 TPS62147 , TPS62148

PRODUCTION DATA  

1. 1 特性
2. 2 应用
3. 3 说明
4. 4 Revision History
5. 5 Device Comparison Table
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 Typical Characteristics
8. 8 Parameter Measurement Information
   1. 8.1 Schematic
9. 9 Detailed Description
   1. 9.1 Overview
   2. 9.2 Functional Block Diagram
   3. 9.3 Feature Description
      1. 9.3.1 Precise Enable
      2. 9.3.2 Power Good (PG)
      3. 9.3.3 MODE
      4. 9.3.4 Undervoltage Lockout (UVLO)
      5. 9.3.5 Thermal Shutdown
   4. 9.4 Device Functional Modes
      1. 9.4.1 Pulse Width Modulation (PWM) Operation
      2. 9.4.2 Power Save Mode Operation (PWM/PFM)
      3. 9.4.3 100% Duty-Cycle Operation
      4. 9.4.4 Current Limit And Short Circuit Protection (for TPS62148)
      5. 9.4.5 HICCUP Current Limit And Short Circuit Protection (for TPS62147)
      6. 9.4.6 Soft Start / Tracking (SS/TR)
      7. 9.4.7 Output Discharge Function (TPS62148 only)
      8. 9.4.8 Starting into a Pre-Biased Load
10. 10Application and Implementation
    1. 10.1 Application Information
       1. 10.1.1 Programming the Output Voltage
       2. 10.1.2 External Component Selection
       3. 10.1.3 Inductor Selection
       4. 10.1.4 Capacitor Selection
          1. 10.1.4.1 Output Capacitor
          2. 10.1.4.2 Input Capacitor
          3. 10.1.4.3 Soft-Start Capacitor
       5. 10.1.5 Tracking Function
       6. 10.1.6 Output Filter and Loop Stability
    2. 10.2 Typical Applications
       1. 10.2.1 Typical Application with Adjustable Output Voltage
          1. 10.2.1.1 Design Requirements
          2. 10.2.1.2 Detailed Design Procedure
          3. 10.2.1.3 Application Curves
    3. 10.3 System Examples
       1. 10.3.1 LED Power Supply
       2. 10.3.2 Powering Multiple Loads
       3. 10.3.3 Voltage Tracking
       4. 10.3.4 Precise Soft-Start Timing
    4. 10.4 Power Supply Recommendations
    5. 10.5 Layout
       1. 10.5.1 Layout Guidelines
       2. 10.5.2 Layout Example
       3. 10.5.3 Thermal Considerations
11. 11Device and Documentation Support
    1. 11.1 Device Support
       1. 11.1.1 第三方产品免责声明
    2. 11.2 接收文档更新通知
    3. 11.3 支持资源
    4. 11.4 Trademarks
    5. 11.5 静电放电警告
    6. 11.6 术语表
12. 12Mechanical, Packaging, and Orderable Information