SFFS534 October   2022 TPSM365R3 , TPSM365R6

 

  1.   Trademarks
  2. 1Overview
  3. 2Functional Safety Failure In Time (FIT) Rates
    1. 2.1 TPSM365R6
    2. 2.2 TPSM365R3
  4. 3Failure Mode Distribution (FMD)
  5. 4Pin Failure Mode Analysis (Pin FMA)

3 Failure Mode Distribution (FMD)

The failure mode distribution estimation for TPSM365R6 and TPSM365R3 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 due to misuse or overstress.

Table 3-1 Die Failure Modes and Distribution
Die Failure ModesFailure Mode Distribution (%)
No Output Voltage

60%

Output not in specification - voltage or timing

30%

Power Good - False Trip or Failure to Trip

5%

Short Circuit any two pins

5%