This document is a functional safety manual for the Texas Instruments TCAN1167-Q1 component. The specific orderable part numbers supported by this functional safety manual are as follows:

• [TCAN1167-Q1] (Orderable Part #: TCAN1167DMTRQ1)

This functional safety manual provides information needed by system developers to help in the creation of a functional safety system using a TCAN1167-Q1 component. This document includes:

• An overview of the component architecture
• An overview of the development process used to decrease the probability of systematic failures
• An overview of the functional safety architecture for management of random failures
• The details of architecture partitions and implemented functional safety mechanisms

The following information is documented in the [Functional Safety Analysis Report] and is not repeated in this document:

• Summary of failure rates (FIT) of the component
• Summary of functional safety metrics of the hardware component for targeted standards (for example IEC 61508, ISO 26262, and so forth)
• Quantitative functional safety analysis (also known as FMEDA, Failure Modes, Effects, and Diagnostics Analysis) with detail of the different parts of the component, allowing for customized application of functional safety mechanisms
• Assumptions used in the calculation of functional safety metrics

The following information is documented in the [Functional Safety Report], 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 TCAN1167-Q1 component. For more information, refer to the data sheet. This document is intended to be used in conjunction with the pertinent data sheets, technical reference manuals, and other component documentation.

For information that is beyond the scope of the listed deliverables, contact your TI sales representative or go to http://www.ti.com/technologies/functional-safety/overview.html.

This section summarizes the component functional safety capability.

This hardware component:

• Was not developed according to the requirements of any functional safety standard.
• FIT rates and failure mode distributions are provided as part of the Functional Safety Analysis Report for custromers to calculate random fault integrity metrics.
• Recommendations are provided in this Functional Safety Manual for external safety mechanisms that may provide coverage for component failure modes.
• TI recommends that this component is integrated into the system through the strategy of "evaluation of hardware element" (ISO 26262-8:2018 clause 13).

For functional safety development, it is necessary to manage both systematic and random faults. Texas Instruments follows a new-product development process for all of its components which helps to decrease the probability of systematic failures. This new-product development process is described in Section 3.1.

Texas Instruments has been developing components for automotive and industrial markets since 1996. Automotive markets have strong requirements regarding quality management and product reliability. The TI new-product development process features many elements necessary to manage systematic faults. Additionally, the documentation and reports for these components can be used to assist with compliance to a wide range of standards for customer’s end applications including automotive and industrial systems (e.g., ISO 26262-4, IEC 61508-2).

This component was developed using TI’s new product development process which has been certified as compliant to ISO 9001 / IATF 16949 as assessed by Bureau Veritas (BV).

The standard development process breaks development into phases:

• Assess
• Plan
• Create
• Validate

Figure 3-1 shows the standard process.

Figure 3-1 TI New-Product Development Process