SFFS657 august   2023 AMC1035-Q1

 

  1.   1
  2.   Trademarks
  3. 1Overview
  4. 2Functional Safety Failure In Time (FIT) Rates
  5. 3Failure Mode Distribution (FMD)
  6. 4Pin Failure Mode Analysis (Pin FMA)

3 Failure Mode Distribution (FMD)

The failure mode distribution estimation for the AMC1035-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 ModesFailure Mode Distribution (%)
DOUT stuck high or low30%
Bitstream output out of specification (equivalent to gain error) 20%
Device behavior undetermined 20%
Bitstream output out of specification (equivalent to offset error) 15%
Reference output out of specification(1) 10%
Bitstream output out of specification (increased noise)5%
(1) This failure mode also causes gain error failures.