1 Overview

This document contains information for LM5180, LM5180-Q1, LM25180, LM25180-Q1, LM5181, and LM5181-Q1 (WSON package) 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 their 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.

Figure 1-1 Functional Block Diagram

LM5180, LM5180-Q1, LM25180, LM25180-Q1, LM5181, and LM5181-Q1 were developed using a quality-managed development process, but were not developed in accordance with the IEC 61508 or ISO 26262 standards.