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  • TCAN4550-Q1Functional Safety Analysis Report Summary

    • SFFS246 August   2022 TCAN4550-Q1

       

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  • TCAN4550-Q1Functional Safety Analysis Report Summary
  1.   Trademarks
  2. 1Introduction
  3. 2Hardware Component Failure Modes Effects and Diagnostics Analysis (FMEDA)
    1. 2.1 Random Fault Estimation
      1. 2.1.1 Fault Rate Estimation Theory for Packaging
      2. 2.1.2 Fault Estimation Theory for Silicon Permanent Faults
      3. 2.1.3 Fault Estimation Theory for Silicon Transient Faults
      4. 2.1.4 The Classification of Failure Categories and Calculation
    2. 2.2 Using the FMEDA Spreadsheet Tool
      1. 2.2.1 Mission Profile Tailoring Tab
        1. 2.2.1.1 Geographical Location
        2. 2.2.1.2 Life Cycle
        3. 2.2.1.3 Use Case Thermal Management Control (Theta-Ja) and Use Case Power
        4. 2.2.1.4 Safe vs Non-Safe (Safe Fail Fraction) for Each Component Type
        5. 2.2.1.5 Analog FIT Distribution Method
        6. 2.2.1.6 Operational Profile
      2. 2.2.2 Pin Level Tailoring Tab
      3. 2.2.3 Function and Diag Tailoring Tab
      4. 2.2.4 Diagnostic Coverage Tab
      5. 2.2.5 Customer Defined Diagnostics Tab
      6. 2.2.6 Totals - ISO26262 Tab
      7. 2.2.7 Details - ISO26262 Tab
    3. 2.3 Example Calculation of Metrics
      1. 2.3.1 Assumptions of Use for Calculation of Safety Metrics
      2. 2.3.2 Summary of ISO 26262 Safety Metrics at Device Level
  4. IMPORTANT NOTICE
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FMEDA

TCAN4550-Q1Functional Safety Analysis Report Summary

Trademarks

All trademarks are the property of their respective owners.

1 Introduction

This document is a Safety Analysis Report for the Texas Instruments TCAN4550-Q1. Device numbers covered by this Safety Analysis Report include the following products:

  • TCAN4550-Q1

The following information is documented in the Device Safety Manual, and is not repeated in this document. This document isreferred to as the Safety Manual through the remainder of this document.

  • An overview of the super set product architecture
  • An overview of the development process used to reduce systematic failures
  • An overview of the safety architecture for management of random failures
  • The details of architecture partitions and implemented safety mechanisms

The following information is documented in the Safety Report (or certificate), and is not repeated in this document:

  • Results of assessments of compliance to targeted standards

The user of this document should have a general familiarity with the TCAN4550-Q1. This document is intended to be used in conjunction with the pertinent data sheets, technical reference manuals, and other documentation for the products under development.

The following functional safety analysis are described in this document:

  • Hardware component FMEDA (Failure Modes Effects and Diagnostics Analysis) - The complete FMEDA will be provided in a separate Excel document. The assumptions made in the FMEDA and the settings for tailoring the FMEDA to a specific application are described in this document.

2 Hardware Component Failure Modes Effects and Diagnostics Analysis (FMEDA)

This section describes the device FMEDA, the assumptions made within, the options for tailoring, and provides an example calculation of device functional safety metrics.

 
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