SLVS817G May   2008  – June 2015 TPD4S009 , TPD4S010

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 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 ±8-kV IEC61000-4-2 Level 4 Contact ESD Protection
      2. 7.3.2 IEC61000-4-5 Surge Protection
      3. 7.3.3 I/O Capacitance
      4. 7.3.4 Low Leakage Current
      5. 7.3.5 Supports High-Speed Differential Data Rates
      6. 7.3.6 Ultra-low Matching Capacitance Between Differential Signal Pairs
      7. 7.3.7 Ioff Feature for the TPD4S009
      8. 7.3.8 Industrial Temperature Range
      9. 7.3.9 Easy Flow-Through Routing
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Signal Range on Pin 1, 2, 4, or 5
        2. 8.2.2.2 Bandwidth on Pin 1, 2, 4, or 5
      3. 8.2.3 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 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

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発注情報

8 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality.

8.1 Application Information

TPD4S009 and TPD4S010 are four-channel TVS diode arrays which are used to provide IEC 61000-4-2 system level ESD protection for a human interface connector. TPD4S009 and TPD4S010 provide a path to ground for dissipating ESD events on hi-speed signal lines between the human interface connector and the system. As the current from ESD passes through the TVS, only a small voltage drop is present across the diode. This is the voltage presented to the protected IC. The low RDYN of the triggered TVS holds this voltage, VCLAMP, to a safe level for the protected IC.

8.2 Typical Application

TPD4S009 TPD4S010 TPD4S009_Typ_App.gifFigure 8. Typical Application Schematic

8.2.1 Design Requirements

For this design example, two TPD4S010 devices, and one TPD5S116 are being used in an HDMI 1.4 application. This will provide a complete port protection scheme.

Given the HDMI 1.4 application, the following parameters are known.

DESIGN PARAMETER VALUE
Signal range on Pins 1, 2, 4, or 5 0 V to 3.6 V
Operating Frequency 1.7 GHz

8.2.2 Detailed Design Procedure

To begin the design process, some parameters must be decided upon; the designer needs to know the following:

  • Signal range on all the protected lines
  • Operating frequency

8.2.2.1 Signal Range on Pin 1, 2, 4, or 5

TPD4S010 has 4 identical protection channels for signal lines. The symmetry of the device provides flexibility when selecting which of the 4 I/O channels will protect which signal lines. Any I/O will support a signal range of 0 to 5.5 V. Therefore, this device will support the HDMI 1.4 signal swing.

8.2.2.2 Bandwidth on Pin 1, 2, 4, or 5

Each pin of the TPD4S010 has a typical –3 dB bandwidth of 4GHz. Therefore, this device can handle HDMI 1.4 data rate of 3.4 Gbps with operating frequency of 1.7 GHz.

8.2.3 Application Curves

Figure 9 and Figure 10 are HDMI eye diagram measurements for the TPD4S009. The same eye diagram performance is expected for the TPD4S010.

TPD4S009 TPD4S010 g_eyedgm_without_lvs817.gifFigure 9. Eye Diagram Without TPD4S009
TPD4S009 TPD4S010 g_eyedgm_with_lvs817.gifFigure 10. Eye Diagram With TPD4S009