SFFS177 October   2021 TCAN1046A-Q1 , TCAN1046AV-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)
  6. 5Revision History

Failure Mode Distribution (FMD)

The failure mode distribution estimation for TCAN1046A-Q1 and TCAN1046AV-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 ModesFailure Mode Distribution (%)
Receiver Fail45%
Transmitter Fail45%
CANH or CANL driver stuck dominant5%
Short circuit any two pins5%