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SBOA386B March 2020 – October 2023 INA180-Q1 , INA181-Q1 , INA185-Q1 , INA2180-Q1 , INA2181-Q1 , INA4180-Q1 , INA4181-Q1

2.1 INA180-Q1, SOT-23-5 Package

This section provides Functional Safety Failure In Time (FIT) rates for the SOT-23-5 package of INA180-Q1 based on two different industry-wide used reliability standards:

Table 2-5 provides FIT rates based on IEC TR 62380 / ISO 26262 part 11
Table 2-6 provides FIT rates based on the Siemens Norm SN 29500-2

Table 2-1 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	4
Die FIT Rate	2
Package FIT Rate	2

The failure rate and mission profile information in Table 2-5 comes from the Reliability data handbook IEC TR 62380 / ISO 26262 part 11:

Mission Profile: Automotive Control
Power dissipation: 10 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

Table	Category	Reference FIT Rate	Reference Virtual T_J
4	BICMOS Op amp, comparators, voltage monitors	8 FIT	45°C

The Reference FIT Rate and Reference Virtual T_J (junction temperature) in Table 2-6 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.