SFFS292 October   2021 LMR54406 , LMR54410

 

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

Failure Mode Distribution (FMD)

The failure mode distribution estimation for LMR54410 and LMR54406 in Table 2-1 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 are 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 2-1 Die Failure Modes and Distribution
Die Failure ModesFailure Mode Distribution (%)
SW Output50%
SW output not in specification -- voltage or timing45%
SW driver FET suck on5%