ZHCSEP1D January   2016  – May 2021 TPS61194

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics (1) (1)
    6. 6.6  Internal LDO Electrical Characteristics
    7. 6.7  Protection Electrical Characteristics
    8. 6.8  Current Sinks Electrical Characteristics
    9. 6.9  PWM Brightness Control Electrical Characteristics
    10. 6.10 Boost and SEPIC Converter Characteristics
    11. 6.11 Logic Interface Characteristics
    12. 6.12 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Integrated DC-DC Converter
      2. 7.3.2 Internal LDO
      3. 7.3.3 LED Current Sinks
        1. 7.3.3.1 Output Configuration
        2. 7.3.3.2 Current Setting
        3. 7.3.3.3 Brightness Control
      4. 7.3.4 Protection and Fault Detections
        1. 7.3.4.1 Adaptive DC-DC Voltage Control and Functionality of LED Fault Comparators
        2. 7.3.4.2 Overview of the Fault/Protection Schemes
    4. 7.4 Device Functional Modes
      1. 7.4.1 Device States
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Typical Application for 4 LED Strings
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Inductor Selection
          2. 8.2.1.2.2 Output Capacitor Selection
          3. 8.2.1.2.3 Input Capacitor Selection
          4. 8.2.1.2.4 LDO Output Capacitor
          5. 8.2.1.2.5 Diode
        3. 8.2.1.3 Application Curves
      2. 8.2.2 SEPIC Mode Application
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
          1. 8.2.2.2.1 Inductor
          2. 8.2.2.2.2 Diode
          3. 8.2.2.2.3 Capacitor C1
        3. 8.2.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 接收文档更新通知
    4. 11.4 支持资源
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

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 Revision History

Changes from Revision C (June 2017) to Revision D (May 2021)

Changes from Revision B (September 2016) to Revision C (June 2017)

  • Enhanced pin descriptions for pins 3, 10 and 16 in Pin Functions Go
  • Deleted "IOUT = 100 mA" from tON/OFF row of Table 7.9Go
  • Changed "0.5" from MAX to TYP column in tON/OFF row of Table 7.9 Go
  • Added table note 1 for Tables 7.9 and 7.10Go
  • Deleted "Initial DC-DC voltage is about 88% of VMAX BOOST." from Integrated DC-DC Converter; change wording in last sentence before equation 1.Go
  • Changed eq. 1; added "K" eq definitions for eq. 1 and paragraph after Fig. 9 Go
  • Added new paragraph before Internal LDO Go
  • Deleted "Dimming ratio is calculated as ratio between the input PWM period and minimum on/off time (0.5 µs). " from Section 7.3.3.3 Go

Changes from Revision A (January 2016) to Revision B (September 2016)

  • 删除了特性 中若干项的措辞Go
  • 将“输出电流”更改为“LED 灯串电流”，将“在 200Hz 时具有 10000:1 的高调光比”更改为“在 100Hz 时具有 10000:1 的高调光比”Go
  • 删除了说明 的第一段中的最后一句 - 将其移至最后一段的最后一句Go
  • 将“200Hz 下 10000:1 的 PWM 亮度调节比率”更改为“100Hz 下 10000:1 的 PWM 亮度调节比率”Go
  • Added footnotes to ESD Ratings Go
  • Added 2 new LED Current graphsGo