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

2.3 TSSOP-14 and VQFN-14 Package

This section provides Functional Safety Failure In Time (FIT) rates for TSSOP-14 andVQFN-14 package of TXU0304-Q1 based on industry-wide used reliability standards:

  • Table 2-3 provides FIT rates based on IEC TR 62380 / ISO 26262 part 11
Table 2-3 Component Failure Rates per Siemens Norm SN 29500-2
Table Category Reference FIT Rate Reference Virtual TJ
5 CMOS Analog switch, Bus Interface 5 FIT 55°C

The Reference FIT Rate and Reference Virtual TJ (junction temperature) in Table 2-3 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.