SFFSB41 May   2026

 

  1.   1
  2.   Trademarks
  3. 1Overview
  4. 2Functional Safety Failure In Time (FIT) Rates
    1. 2.1 DW-16 Wide-SOIC Package
    2. 2.2 DFP-16 Wide-SSOP Package
    3. 2.3 DBQ-16 SSOP Package
  5. 3Failure Mode Distribution (FMD)
  6. 4Pin Failure Mode Analysis (Pin FMA)
    1. 4.1 DW-16 Wide-SOIC, DFP-16 Wide-SSOP, and DBQ-16 SSOP Packages
  7. 5Revision History

1 Overview

This document contains information for the ISO6431 and ISO6431-Q1 (DW-16 Wide-SOIC, DFP-16 Wide-SSOP, and DBQ-16 SSOP packages) to aid in a functional safety system design. Information provided are:

  • Functional safety failure in time (FIT) rates of the semiconductor component estimated by the application of industry reliability standards
  • Component failure modes and distribution (FMD) based on the primary function of the device
  • Pin failure mode analysis (pin FMA)

Figure 1-1 shows the device functional block diagram for reference.

ISO6431 ISO6431-Q1 Functional Block Diagram Figure 1-1 Functional Block Diagram

The ISO6431 and ISO6431-Q1 was developed using a quality-managed development process, but was not developed in accordance with the IEC 61508 or ISO 26262 standards.