ZHCSFQ9B November   2016  – June 2018 TPS54200 , TPS54201

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化电路原理图
      2.      ADIM 中的深度调光性能出色
  4. 4 修订历史记录
  5. 5 说明 （续）
  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 Timing Requirements
    7. 7.7 Switching Characteristics
    8. 7.8 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  Fixed-Frequency PWM Control
      2. 8.3.2  Error Amplifier
      3. 8.3.3  Slope Compensation and Output Current
      4. 8.3.4  Input Undervoltage Lockout
      5. 8.3.5  Voltage Reference
      6. 8.3.6  Setting LED Current
      7. 8.3.7  Internal Soft Start
      8. 8.3.8  Bootstrap Voltage (BOOT)
      9. 8.3.9  Overcurrent Protection
        1. 8.3.9.1 High-Side MOSFET Overcurrent Protection
        2. 8.3.9.2 Low-Side MOSFET Overcurrent Protection
        3. 8.3.9.3 Low-Side MOSFET Reverse Overcurrent Protection
      10. 8.3.10 Fault Protection
        1. 8.3.10.1 LED-Open Protection
        2. 8.3.10.2 LED Short Protection
        3. 8.3.10.3 Sense-Resistor Short Protection
        4. 8.3.10.4 Sense-Resistor Open Protection
        5. 8.3.10.5 Overvoltage Protection
        6. 8.3.10.6 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Enable and Disable Device
      2. 8.4.2 Mode Detection
      3. 8.4.3 Analog Dimming Mode Operation
      4. 8.4.4 PWM Dimming-Mode Operation
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 TPS5420x 12-V Input, 1.5-A, 3-Piece IR LED Driver With Analog Dimming
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Inductor Selection
          2. 9.2.1.2.2 Input Capacitor Selection
          3. 9.2.1.2.3 Output Capacitor Selection
          4. 9.2.1.2.4 FB Pin RC Filter Selection
          5. 9.2.1.2.5 Sense Resistor Selection
        3. 9.2.1.3 Application Curves
      2. 9.2.2 TPS5420x 24-V Input, 1-A, 4-Piece WLED Driver With PWM Dimming
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
          1. 9.2.2.2.1 Inductor Selection
          2. 9.2.2.2.2 Input Capacitor Selection
          3. 9.2.2.2.3 Output Capacitor Selection
          4. 9.2.2.2.4 FB Pin RC Filter Selection
          5. 9.2.2.2.5 Sense Resistor Selection
        3. 9.2.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 第三方产品免责声明
    2. 12.2 文档支持
      1. 12.2.1 相关链接
    3. 12.3 接收文档更新通知
    4. 12.4 社区资源
    5. 12.5 商标
    6. 12.6 静电放电警告
    7. 12.7 术语表
  13. 13机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

4 修订历史记录

Changes from A Revision (March 2017) to B Revision

  • 已在“特性”部分和整个产品说明书内将“断续模式”更改为“自动重试模式”Go
  • 已更改封装 说明Go
  • 已更改 “应用”部分Go
  • 已在“说明”部分的第一句中将“WLED”更改为“单色或 IR LED”Go
  • 已在器件信息表Go
  • Changed pinout diagram and associated textGo
  • Changed "PWM duty input" to "PWM input duty cycle" in the Pin Functions tableGo
  • Changed "free-air" to "ambient" in the Absolute Maximum Ratings condition statementGo
  • Changed "free-air" to "ambient" in the Recommended Operating Conditions condition statementGo
  • Changed the package description in the Thermal Information table headerGo
  • Changed "Rising" and "Falling" to "Rising VPWM" and "Falling VPWM" for the VADIM, VPDIM, and VPWMElectrical Characteristics table entriesGo
  • Changed "SW" to "VSW" in the Test Conditions column for the RHSD entry in the Electrical Characteristics tableGo
  • Changed "dim mode" to "dimming mode" in the Test Conditions column for the ILIM_HS1 entry in the Electrical Characteristics tableGo
  • Changed the symbol for switching frequency from FSW to fSWGo
  • Changed VIN to VVIN in the Typical Characteristics condition statementGo
  • Changed "hiccup up mode" to "auto-retry mode" Go
  • Changed "duty" to "duty cycle" in multiple locations throughout the data sheetGo
  • Changed "PWM duty" to "PWM duty cycle" in the Figure 16 imageGo
  • Changed "floating driver" to "boot regulator" in the Bootstrap Voltage (BOOT) section Go
  • Changed VIN to VVIN in multiple locations throughout the data sheetGo
  • Changed various wording in the High-Side MOSFET Overcurrent Protection section for clarity, and changed "512 switching cycles " to "tSHUTDOWN_DELAY" Go
  • Changed "hiccup up" to "auto-retry mode" in the Fault Protection sectionGo
  • Changed "hiccup" to "auto-retry" or "shuddown -and-restart," and deleted "programmed for XXX switching cycles" textGo
  • Changed "will be clamped by low" to "is clamped at the low-"Go
  • Changed "hiccup" to "auto-retry" or "shuddown -and-restart," and deleted "programmed for XXX switching cycles" textGo
  • Changed "hiccup" to "auto-retry" or "shuddown -and-restart," and deleted "programmed for XXX switching cycles" textGo
  • Changed "hiccup" to "auto-retry" or "shuddown -and-restart," and deleted "programmed for XXX switching cycles" textGo
  • Changed "Recycle VIN can reset" to "Cycling VIN resets"Go
  • Changed "once the device shuts down, it starts" to "a device shutdown starts"Go
  • Changed "hiccup" to "auto-retry" or "shuddown -and-restart," and deleted "programmed for XXX switching cycles" textGo
  • Changed "hiccup" to "auto-retry" or "shuddown -and-restart," and deleted "programmed for XXX switching cycles" textGo
  • Changed "Vin at" to "VVIN"Go
  • Changed "VADIM" to "VADIM" and "VPDIM" to "VPDIM"Go
  • Changed "it's" to "the output is"Go
  • Changed "VIN" to "VIN" and "recycled" to "cycled" at the end of the Mode DetectionGo
  • Changed "a little big" to "excessive" in the Analog Dimming Mode Operation sectionGo
  • Changed "PWM duty cycle" to "PWM state"Go
  • Changed "12-VIN" to "12-V VVIN"Go
  • Changed "FSW" to "fSW" and "VIN(max)" to "VVIN(max)" in Equation 3 from F to fGo
  • Changed "FSW" to "fSW" and "VIN(ripple)" to "VVIN(ripple)" in Equation 8 from F to fGo
  • Changed the symbol for frequency in Equation 11 from F to fGo
  • Changed "RF" to "RF" and "CF" to "CF"Go
  • Changed "VOUT" to "VOUT" in the conditions of multiple application curvesGo
  • Changed the wording of the second and third paragraphs of the Inductor Selection section for clarityGo
  • Changed the symbol for frequency in Equation 14 from F to fGo
  • Changed "wide areas advantages" to "added width also"Go
  • Changed "reduce the possibility" to "minimize"Go
  • 已添加器件支持和文档支持部分Go

Changes from * Revision (November 2016) to A Revision

  • Added TPS54201 器件的初始发行版。Go
  • 已将 说明 更改为包含保护模式。Go
  • Changed ILIM_HS1 and ILIM_HS2 CURRENT LIMIT.Go
  • Changed the low-side source-current limit from (2.4/3.4/4.4) to (2.3/3.3/4.4), Go
  • Added TPS54201 tHIC_THERMAL, tHIC_OV and tHIC_WAIT Timing Requirements.Go
  • Added TPS54201 LED Short Protection image.Go
  • Added TPS54201 LED Open Protection image. Go
  • Added TPS54201 Sense Resistor Short Protection image. Go