SFFS006B November   2020  – March 2024 LMR33610 , LMR33620 , LMR33630 , LMR33640

 

  1.   1
  2.   Trademarks
  3. 1Overview
  4. 2Functional Safety Failure In Time (FIT) Rates
    1. 2.1 LMR33610, LMR33620 Functional Safety Failure in Time (FIT) Rates
    2. 2.2 LMR33630 Functional Safety Failure In Time (FIT) Rates
    3. 2.3 LMR33640 Functional Safety Failure In Time (FIT) Rates
  5. 3Failure Mode Distribution (FMD)
  6. 4Pin Failure Mode Analysis (Pin FMA)
    1. 4.1 VQFN Package
    2. 4.2 HSOIC Package
  7. 5Revision History

2.2 LMR33630 Functional Safety Failure In Time (FIT) Rates

This section provides Functional Safety Failure In Time (FIT) rates for the LMR33630 based on the following industry-wide used reliability standards:

  • Table 2-2 provides FIT rates based on IEC TR 62380 / ISO 26262 part 11
Table 2-2 Component Failure Rates per IEC TR 62380 / ISO 26262 Part 11
FIT IEC TR 62380 / ISO 26262 FIT (Failures Per 109 Hours)
Total Component FIT Rate 13
Die FIT Rate 8
Package FIT Rate 5

The failure rate and mission profile information in Table 2-2 comes from the Reliability data handbook IEC TR 62380 / ISO 26262 part 11:

  • Mission Profile: Motor Control from Table 11
  • Power dissipation: 555 mW
  • Climate type: World-wide Table 8
  • Package factor (lambda 3): Table 17b
  • Substrate Material: FR4
  • EOS FIT rate assumed: 0 FIT
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