SLUS525A March   2007  – September 2015 TPS61050 , TPS61052

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  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
    6. 6.6 I2C Interface Timing Characteristics
    7. 6.7 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 Efficiency
      2. 7.3.2 Soft-Start
      3. 7.3.3 Shutdown
      4. 7.3.4 LED Failure Modes
      5. 7.3.5 Undervoltage Lockout
      6. 7.3.6 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operating Modes: Torch and Flash
      2. 7.4.2 Mode of Operation: Flash Blanking (TPS61050)
      3. 7.4.3 Hardware Voltage Mode Selection (TPS61052)
      4. 7.4.4 Low Light Dimming Mode
    5. 7.5 Programming
      1. 7.5.1 3-Bit ADC
      2. 7.5.2 Serial Interface Description
      3. 7.5.3 F/S-Mode Protocol
      4. 7.5.4 TPS6105X I2C Update Sequence
    6. 7.6 Register Maps
      1. 7.6.1 Register Description
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Typical Application Schematic
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Inductor Selecton
          2. 8.2.1.2.2 Capacitor Selection
            1. 8.2.1.2.2.1 Input Capacitor
            2. 8.2.1.2.2.2 Output Capacitor
          3. 8.2.1.2.3 Checking Loop Stability
        3. 8.2.1.3 Application Curves
      2. 8.2.2 High-Power White LED Solution Featuring Privacy Indicator
      3. 8.2.3 High-Power White LED Solution Featuring No-Latency Turn-Down Through PA TX Signal
      4. 8.2.4 High-Power White LED Flash Driver And AF/Zoom Motor Drive Supply
      5. 8.2.5 White LED Flash Driver and Audio Amplifier Power Supply Exclusive Operation
      6. 8.2.6 White LED Flash Driver and Audio Amplifier Power Supply Operating Simultaneously
      7. 8.2.7 White LED Flash Driver and Auxiliary Lighting Zone Power Supply
      8. 8.2.8 2 × 300 mA Dual LED Camera Flash
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Thermal Considerations
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
    2. 11.2 Related Links
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information
    1. 12.1 Package Summary

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

9 Power Supply Recommendations

The device is designed to operate from an input voltage supply range from 2.5 V to 6 V. This input supply must be well regulated. If the input supply is located more than a few inches from the converter, additional bulk capacitance may be required in addition to the ceramic bypass capacitors. A typical choice is an electrolytic or tantalum capacitor with a value of 47 μF.