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

PRODUCTION DATA  

  1.   1
  2. 特性
  3. 应用
  4. 说明
  5. Pin Configuration and Functions
  6. 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. 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. 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. 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. Revision History
  11. 10Mechanical, Packaging, and Orderable Information

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • D|8
  • D|14
  • P|8
散热焊盘机械数据 (封装 | 引脚)
订购信息

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Go