1 Overview

This document contains information for the DRV81602-Q1 (24-pin HTSSOP (PWP) package) and variants DRV81242-Q1, DRV81620-Q1, and DRV81080-Q1 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)

The following figures show the device functional block diagrams for reference, where VM or VM_xx are the supply pins from the battery and the VDD is the digital logic supply. The VM pins also have voltage monitoring on the supply function referenced as VM in this document.

Figure 1-1 DRV81602-Q1 Functional Block Diagram

Figure 1-2 DRV81242-Q1 Functional Block Diagram

Figure 1-3 DRV81620-Q1 Functional Block Diagram

Figure 1-4 DRV81080-Q1 Functional Block Diagram

DRV81602-Q1 and variants DRV81242-Q1, DRV81620-Q1, and DRV81080-Q1 were developed using a quality-managed development process, but were not developed in accordance with the IEC 61508 or ISO 26262 standards.