SLVAFR4 February   2024 TPS25762-Q1 , TPS25772-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Vendor Information File (VIF) Setting
    1. 2.1 Automatic VIF Generation
    2. 2.2 Generate VIF Manually
  6. 3Power Delivery Compliance Test
    1. 3.1 Basic Software for Compliance Test and Results Analysis
  7. 4Power Delivery Source Power Requirements Test
    1. 4.1 SPT.1 Load Test and SPT.2 Capabilities Test
    2. 4.2 SPT.3 Hard Reset Test
    3. 4.3 SPT.5 Over Current Test
    4. 4.4 SPT.6 PPS Voltage Step Test
    5. 4.5 SPT.7 PPS Current Limit Test
  8. 5Analysis of Some Failure Examples
  9. 6Summary
  10. 7References

3.1 Basic Software for Compliance Test and Results Analysis

GUID-20240104-SS0I-73NP-BWDZ-WHJVDPDR7FHW-low.jpgFigure 3-1 GRL C2 PD Compliance Test Tool

GRL-USB-PD-C2-EPR (C2-EPR) provides and automates USB Power Delivery compliance testing at up to 240W at the push of a button. A comprehensive API portfolio enables users to run sample scripts, or program them in C# and Python. And the Power Suite Pro Application takes users beyond traditional compliance. For PD3.1, the basic test items include Physical layer, Protocol layer and Power Supply tests.

Please download GRL-C2 USB Power Delivery and USB Type-C Test software on GRL official website. One basic function of this software is used for PD compliance test results analysis.

GUID-20240104-SS0I-QSCX-K2MM-MLJTDQH1NGSD-low.pngFigure 3-2 GRL-C2 Results Analyzer

Click Results panel and choose .grltrace file that you want to check or failure analysis. The file includes PD message data communication log and areas for waveforms display which is very convenient for results check. It also imbeds toolbars useful to view results. Please find help files for more details.

GUID-20240104-SS0I-KHKK-3BNG-0CGMRGS0VK5K-low.jpgFigure 3-3 LeCroy: M310

The Voyager M310e is used for validating USB designs with the USB-IF compliance test specifications. the Voyager M310e fully supports USB PD 3.1 functionality. The exerciser port of the Voyager M310e is also enhanced to capture side band use (SBU) and auxiliary (AUX) messages for USB Type-C devices that support USB4 or DisplayPort Alternate modes. The instrument can fully validate PD3.1 compliance spec includes Physical layer, Protocol layer and Power Supply and so on.

Please download Teledyne LeCroy USB Protocol Suite on LeCroy official website. The suite is able to analyze USB4, USB3.2, USB2.0 and PD results. Open data log file with the extension of .usb. Similar with GRL-C2, the log also mainly includes two sections. Data log trace view is for protocol data analysis. Power tracker section consists of VBUS power tracker, CC power tracker and VCONN power tracker. waveform details are shown as below.

GUID-20240104-SS0I-FQZL-8NLR-70B84L4N9NWR-low.pngFigure 3-4 M310 Data Log Analyzer

Also there are other two solutions for PD compliance test, MQP and Ellisys. Please search their official website for more information.