ZHCSVP7J January   1989  – October 2024 TL2842 , TL2843 , TL2844 , TL2845 , TL3842 , TL3843 , TL3844 , TL3845

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Pulse-by-Pulse Current Limiting
      2. 6.3.2 Error Amplifier With Low Output Resistance
      3. 6.3.3 High-Current Totem-Pole Output
    4. 6.4 Device Functional Modes
      1. 6.4.1 Shutdown Technique
      2. 6.4.2 Slope Compensation
  8. 7 Application and Implementation
    1. 7.1 Typical Application
      1. 7.1.1 Design Requirements
      2. 7.1.2 Detailed Design Procedure
        1. 7.1.2.1 Current-Sense Circuit
        2. 7.1.2.2 Error-Amplifier Configuration
        3. 7.1.2.3 Oscillator Section
      3. 7.1.3 Application Curve
    2. 7.2 Power Supply Recommendations
    3. 7.3 Layout
      1. 7.3.1 Layout Guidelines
        1. 7.3.1.1 Feedback Traces
        2. 7.3.1.2 Input/Output Capacitors
        3. 7.3.1.3 Compensation Components
        4. 7.3.1.4 Traces and Ground Planes
      2. 7.3.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 接收文档更新通知
    2. 8.2 支持资源
    3. 8.3 Trademarks
    4. 8.4 静电放电警告
    5. 8.5 术语表
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

9 Revision History

Changes from Revision I (July 2016) to Revision J (October 2024)

  • 更新了整个文档中的表格、图和交叉参考的编号格式Go
  • Changed ESD ratings, CDM rating from ±3000V to ±2000V.Go
  • Changed thermal information for D-8, D-14, and P-8 packagesGo
  • Changed the OUTPUT SECTION: Rise and fall time, typical value from 50ns to 25ns in the Electrical Characteristics sectionGo
  • Changed the PWM: maximum duty cycle of TLx842/3B, minimum value from 95% to 92% in the Electrical Characteristics sectionGo
  • Changed the TOTAL STANDBY CURRENT, VCC Zener voltage, typical value from 34V to 39V in the Electrical Characteristics sectionGo
  • Updated the Typical Characteristics graphs for Idischarge vs Ta, Maximum Duty Cycle vs Rt, Deadtime vs Ct, Rt vs frequency, and Ivcc vs VCC Go

Changes from Revision H (January 2015) to Revision I (July 2016)

  • Updated pinout imagesGo
  • Changed TL984x to TL384x in Recommended Operating Conditions Go
  • Changed TLx842, TLx844 to TLx842, TLx843 and TLx843, TLx845 to TLx844, TLx845 in Pulse-Width-Modulator Section Go
  • Added Receiving Notification of Documentation Updates section and Community Resources sectionGo

Changes from Revision G (February 2008) to Revision H (January 2015)

  • 添加了应用、器件信息 表、引脚功能 表、ESD 等级 表、热性能信息 表、典型特性、特性说明 部分、器件功能模式、应用和实施 部分、电源相关建议 部分、布局 部分、器件和文档支持 部分以及机械、封装和可订购信息 部分Go
  • 删除了订购信息 表Go