SLVSD66 September   2015 TPS65233-1

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 Requirements
    7. 6.7 Switching Characteristics
    8. 6.8 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 Charge Pump
      4. 7.3.4 Slew Rate Control
      5. 7.3.5 Short Circuit Protection, Hiccup, and Overtemperature Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Tone Generation
      2. 7.4.2 Serial Interface
    5. 7.5 Programming
      1. 7.5.1 I2C Update Sequence
    6. 7.6 Register Map
      1. 7.6.1 Control Register 1 - Address: 0x00H
      2. 7.6.2 Control Register 2 - Address: 0x01H
      3. 7.6.3 Status Register 1 - Address: 0x02H
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Detailed Design Procedure
        1. 8.2.1.1 Capacitor Selection
      2. 8.2.2 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 Community Resources
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Complete Integration Solution for LNB and I2C
  • DiSEqC 1.x Compatible
  • Supports 9-V and 12-V Power Bus
  • Up to 1000-mA Accurate Output Current Limit Adjustable by External Resistor and I2C
  • Boost Converter With Low Rdson Internal Power Switch
  • Dedicated Enable Pin for Non-I2C Application
  • Low Noise, Low Drop Output With Push-Pull Output Stage
  • Built-In Accurate 22-kHz Tone Generator or External Pin
  • Adjustable Soft-Start and 13-V/18-V Voltage Transition Time
  • Compliant With Main Satellite Receiver Systems Specifications
  • LNB Short Circuit Dynamic Protection
  • Diagnostics for Output Voltage Level, Input Supply UVLO, and DiSEqC Tone Output
  • Cable Disconnect Diagnostic
  • Available in a 16-Pin WQFN 3.00-mm × 3.00-mm (RTE) Package

2 Applications

  • Set-Top Box Satellite Receiver
  • TV Satellite Receiver
  • PC Card Satellite Receiver

3 Description

Designed for analog and digital satellite receivers, the TPS65233-1 is a monolithic voltage regulator with I2C interface, specifically to provide the 13-V/18-V power supply and the 22-kHz tone signaling to the LNB down-converter in the antenna dish or to the multi-switch box. It offers a complete solution with very low component count, low power dissipation together with simple design and I2C standard interfacing.

TPS65233-1 features high power efficiency. The boost converter integrates a 120-mΩ power MOSFET running at 1-MHz switching frequency. Drop out voltage at the linear regulator is 0.8 V to minimize power loss. TPS65233-1 provides multiple ways to generate the 22-kHz signal. Integrated linear regulator with push-pull output stage generates clean 22-kHz tone signal superimposed at the output even at zero loading. Current limit of linear regulator can be programmed by external resistor with ±10% accuracy. Full range of diagnostic read by I2C is available for system monitoring.

The part is available in a 16-pin WQFN 3.00-mm × 3.00-mm (RTE) package.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS65233-1 WQFN (16) 3.00 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

TPS65233-1 typ_app_LVSD66.gif