SFFS542 October   2022 ISO1640-Q1

 

  1.   Trademarks
  2. 1Overview
  3. 2Functional Safety Failure In Time (FIT) Rates
    1. 2.1 8-D Package
    2. 2.2 16-DW Package
  4. 3Failure Mode Distribution (FMD)
  5. 4Pin Failure Mode Analysis (Pin FMA)
    1. 4.1 ISO1640-Q1 in 8-D Package
    2. 4.2 ISO1640-Q1 in 16-DW Package

2.1 8-D Package

This section provides Functional Safety Failure In Time (FIT) rates for 8-D package of ISO1640-Q1 based on two different industry-wide used reliability standards:

Table 2-1 Component Failure Rates per IEC TR 62380 / ISO 26262 Part 11
FIT IEC TR 62380 / ISO 26262FIT (Failures Per 109 Hours)
Total Component FIT Rate10
Die FIT Rate3
Package FIT Rate7

The failure rate and mission profile information in #GUID-0A7ED846-7EA2-4D7D-8818-0A099F3DA239/GUID-95CB0699-DF24-41B7-9A98-5A8A8866984D comes from the Reliability data handbook IEC TR 62380 / ISO 26262 part 11:

  • Mission Profile: Motor Control from Table 11
  • Power dissipation: 96 mW
  • Climate type: World-wide Table 8
  • Package factor (lambda 3): Table 17b
  • Substrate Material: FR4
  • EOS FIT rate assumed: 0 FIT
Table 2-2 Component Failure Rates per Siemens Norm SN 29500-2
TableCategoryReference FIT RateReference Virtual TJ
5

CMOS, BICMOS

Digital, analog / mixed

 25 FIT 55 °C

The Reference FIT Rate and Reference Virtual TJ (junction temperature) in #GUID-0A7ED846-7EA2-4D7D-8818-0A099F3DA239/GUID-91546D77-12B6-4FD3-B7F6-EAB5D6BC5C52 come from the Siemens Norm SN 29500-2 tables 1 through 5. Failure rates under operating conditions are calculated from the reference failure rate and virtual junction temperature using conversion information in SN 29500-2 section 4.