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

Typical Characteristics

TL2842 TL2843 TL2844 TL2845   TL3842 TL3843 TL3844 TL3845 Oscillator Discharge Current vs Temperature for VIN = 15 V and
                            VOSC = 2VFigure 5-1 Oscillator Discharge Current vs Temperature for VIN = 15 V and VOSC = 2V
TL2842 TL2843 TL2844 TL2845   TL3842 TL3843 TL3844 TL3845 Error
                        Amplifier Open-Loop Gain and Phase vs Frequency VCC = 15 V,
                            RL = 100 kΩ, and TA = 25 °CFigure 5-3 Error Amplifier Open-Loop Gain and Phase vs Frequency VCC = 15 V, RL = 100 kΩ, and TA = 25 °C
TL2842 TL2843 TL2844 TL2845   TL3842 TL3843 TL3844 TL3845 Output Saturation Voltage vs Load Current for VCC = 15 V with
                        5-ms Input PulsesFigure 5-5 Output Saturation Voltage vs Load Current for VCC = 15 V with 5-ms Input Pulses
TL2842 TL2843 TL2844 TL2845   TL3842 TL3843 TL3844 TL3845 Reference Voltage vs Source CurrentFigure 5-7 Reference Voltage vs Source Current
TL2842 TL2843 TL2844 TL2845   TL3842 TL3843 TL3844 TL3845 Dead
                        Time vs Timing CapacitanceFigure 5-9 Dead Time vs Timing Capacitance
TL2842 TL2843 TL2844 TL2845   TL3842 TL3843 TL3844 TL3845 Current Sense Input Threshold vs Error Amplifier Output Voltage for
                            VIN = 15 VFigure 5-2 Current Sense Input Threshold vs Error Amplifier Output Voltage for VIN = 15 V
TL2842 TL2843 TL2844 TL2845   TL3842 TL3843 TL3844 TL3845 Max
                        Output Duty Cycle vs Timing Resistor for VCC = 15, CT
                        = 3.3 nF, TA = 25 °CFigure 5-4 Max Output Duty Cycle vs Timing Resistor for VCC = 15, CT = 3.3 nF, TA = 25 °C
TL2842 TL2843 TL2844 TL2845   TL3842 TL3843 TL3844 TL3845 Reference Short Circuit Current vs Temperature for VIN = 15
                        VFigure 5-6 Reference Short Circuit Current vs Temperature for VIN = 15 V
TL2842 TL2843 TL2844 TL2845   TL3842 TL3843 TL3844 TL3845 Reference Voltage vs TemperatureFigure 5-8 Reference Voltage vs Temperature
TL2842 TL2843 TL2844 TL2845   TL3842 TL3843 TL3844 TL3845 Timing Resistance vs FrequencyFigure 5-10 Timing Resistance vs Frequency