SFFS785 January   2024 TXU0304-Q1

 

  1.   1
  2.   Trademarks
  3. 1Overview
  4. 2Functional Safety Failure In Time (FIT) Rates
    1. 2.1 TSSOP-14 Package
    2. 2.2 VQFN-14 Package
    3. 2.3 TSSOP-14 and VQFN-14 Package
  5. 3Failure Mode Distribution (FMD)
  6. 4Pin Failure Mode Analysis (Pin FMA)
    1. 4.1 TSSOP-14 and VQFN-14 Packages

2.2 VQFN-14 Package

This section provides Functional Safety Failure In Time (FIT) rates for the VQFN-14 package of TXU0304-Q1 based on 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 26262FIT (Failures Per 109 Hours)
Total Component FIT Rate9
Die FIT Rate2
Package FIT Rate7

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: 30 mW
  • Climate type: World-wide Table 8
  • Package factor (lambda 3): Table 17b
  • Substrate Material: FR4
  • EOS FIT rate assumed: 0 FIT