SLVSD80D November   2015  – May 2021 TPS65235

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 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 Support Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.2.3 Application Curves

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

GUID-93B68F05-185A-4EDB-8E8A-1F2480FCE7B6-low.png
VLNB = 13.4 V
Figure 8-2 Soft Start, Delay from EN High to LNB Output High
GUID-CCB11A0A-64B9-421A-8F4A-3819FFCF244C-low.png
VLNB = 18.2 V
Figure 8-4 Soft Start,Delay from EN High to LNB Output High
GUID-7532B8E6-E33E-4A42-B9D4-E5F5888F481A-low.png
EN = 0VLNB = 13.4 V
Figure 8-6 Soft Start, Delay From I2C Enable (I2C_CON=1) to LNB Output High
GUID-5E542367-1A9E-4561-AF66-B57A97E7B4DE-low.png
VLNB = 13.4 V
Figure 8-8 No Load, 22 kHz Tone Output
GUID-3379AC49-11E3-45AB-AF7F-DBA7C8A64E98-low.png
VLNB = 18.2 V
Figure 8-10 No Load, 22 kHz Tone Output
GUID-E3AD734D-B9B9-48F1-AAE2-7239FB336AB5-low.pngFigure 8-12 No load, 22 kHz Tone Delay from EXTM 22 kHz Input Turns High To Output Tone On
GUID-8E167C9E-1433-4AFA-8A1A-C7544BDE9683-low.pngFigure 8-14 No Load, 22 kHz Tone Delay From EXTM Tone Envelop Input Turns High To Output Tone On
GUID-7D9AF23D-39D8-4478-8C53-6BE89E384113-low.pngFigure 8-16 No Load, 44 kHz Tone Delay From EXTM 22 kHz Input Turns High To Output Tone On
GUID-AF85CCAB-7791-491F-AAAA-02B8506CDB11-low.png
VLNB = 13.4 V
Figure 8-3 Disabled, Delay From EN Low to LNB Output Low
GUID-55C440FE-E554-4F37-8B5B-696721840401-low.png
VLNB = 18.2 V
Figure 8-5 Disabled, Delay From EN Low to LNB Output Low
GUID-55497A9F-349B-45FC-96DF-8881799364BF-low.png
EN = 0VLNB = 13.4 V
Figure 8-7 Delay From I2C Disable (I2C_CON=0) to LNB Output Low
GUID-24B09EBB-48E3-479A-9709-6E0E2A2A941B-low.png
VLNB = 13.4 V
Figure 8-9 950 mA Load, 22 kHz Tone Output
GUID-44C51882-FC29-4D59-834F-EFED753D23C1-low.png
VLNB = 18.2 V
Figure 8-11 950 mA Load, 22 kHz Tone Output
GUID-709FC9AE-27C3-4E62-AA42-AFEB3E348BC7-low.pngFigure 8-13 No load, 22 kHz Tone Delay from EXTM 22 kHz Input Turns Low To Output Tone Off
GUID-992F605C-560B-4A45-9A80-46DD7049B707-low.pngFigure 8-15 No Load, 22 kHz Tone Delay From EXTM Tone Envelop Input Turns Low To Output Tone Off
GUID-B1916F90-761E-4B7B-B776-86745E5B26E4-low.pngFigure 8-17 No Load, 44 kHz Tone Delay From EXTM 22 kHz Input Turns Low To Output Tone Off