JAJSFS2D November   2015  – May 2021 TPS65235

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  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 Timing Requirements
    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  Boost Converter
      2. 7.3.2  Linear Regulator and Current Limit
      3. 7.3.3  Boost Converter Current Limit
      4. 7.3.4  Charge Pump
      5. 7.3.5  Slew Rate Control
      6. 7.3.6  Short Circuit Protection, Hiccup and Overtemperature Protection
      7. 7.3.7  Tone Generation
      8. 7.3.8  Tone Detection
      9. 7.3.9  Disable and Enable
      10. 7.3.10 Component Selection
        1. 7.3.10.1 Boost Inductor
        2. 7.3.10.2 Capacitor Selection
        3. 7.3.10.3 Surge Components
        4. 7.3.10.4 Consideration for Boost Filtering and LNB Noise
    4. 7.4 Device Functional Modes
    5. 7.5 Programming
      1. 7.5.1 Serial Interface Description
      2. 7.5.2 TPS65235 I2C Update Sequence
    6. 7.6 Register Maps
      1. 7.6.1 Control Register 1 (address = 0x00H) [reset = 00010000]
      2. 7.6.2 Control Register 2 (address = 0x01H) [reset = 0000101]
      3. 7.6.3 Status Register (address = 0x02H) [reset = x0100000]
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application for DiSEqc1.x Support
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
      4. 8.2.4 Typical Application for DiSEqc2.x Support
        1. 8.2.4.1 Design Requirements
        2. 8.2.4.2 Detailed Design Procedure
        3. 8.2.4.3 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 Receiving Notification of Documentation Updates
    2. 11.2 サポート・リソース
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

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

6.7 Typical Characteristics

TA = 25°C, VIN = 12 V, fSW = 1 MHz, CBoost = 2 x 22 µF/35 V (unless otherwise noted)

GUID-F8B0637C-707E-4836-96C2-3055FBFEEEB1-low.gif
L = 4.7 µH
Figure 6-1 Power Efficiency
GUID-182FFD13-29C2-4654-A849-1ACD1C93F80D-low.gif
V(LNB) = 18.2 V
Figure 6-3 Load Regulation
GUID-6DB76BBD-F3D4-4B8B-8ACA-8F0280E17CBC-low.gifFigure 6-5 Shutdown Current vs Junction Temperature
GUID-89C3BF30-32B6-47BB-809E-BFF0E98831ED-low.gif
V(LNB) = 13.4 V
Figure 6-2 Load Regulation
GUID-B6A7ABFF-BF7E-4CFC-B3AA-B51D8D134393-low.gifFigure 6-4 Input Supply Quiescent Current vs Junction Temperature
GUID-AFDC12E7-7805-4AFC-9055-9764F70F7D13-low.gif
ILOAD = 650 mA
Figure 6-6 LNB Current Limit vs Junction Temperature