SFFS866 May   2024 ALM2402-Q1

 

  1.   1
  2.   Trademarks
  3. 1Overview
  4. 2Functional Safety Failure In Time (FIT) Rates
    1. 2.1 HTSSOP Package
    2. 2.2 WSON Package
  5. 3Failure Mode Distribution (FMD)
  6. 4Pin Failure Mode Analysis (Pin FMA)
    1. 4.1 HTSSOP Package
    2. 4.2 WSON Package

3 Failure Mode Distribution (FMD)

The failure mode distribution estimation for the ALM2402-Q1 in Table 3-1 comes from the combination of common failure modes listed in standards such as IEC 61508 and ISO 26262, the ratio of sub-circuit function size and complexity, and from best engineering judgment.

The failure modes listed in this section reflect random failure events and do not include failures resulting from misuse or overstress.

Table 3-1 Die Failure Modes and Distribution
Die Failure Modes Failure Mode Distribution (%)
Output open (Hi-Z) 20%
Output saturated high 25%
Output saturated low 25%
Output functional, out of specification voltage or timing 30%