SLVAEK2A December   2019  – December 2020 TPS2H160-Q1


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

Failure Mode Distribution (FMD)

The failure mode distribution estimation for TPS2H160-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 due to misuse or overstress.

Table 3-1 Die Failure Modes and Distribution
Die Failure Modes Failure Mode Distribution (%)
OUT1,2 open (HiZ) 20%
OUT1,2 stuck on (VS) 10%
OUT1,2 not in specification voltage or timing 45%
Diagnostics not in specification 10%
Protect functions fails to trip 5%
Pin to Pin short any two pins 5%