SFFS043 September 2022 UCC28C40 , UCC28C41 , UCC28C42 , UCC28C43 , UCC28C44 , UCC28C45 , UCC38C40 , UCC38C41 , UCC38C42 , UCC38C43 , UCC38C44 , UCC38C45
This section provides Functional Safety Failure In Time (FIT) rates for PDIP (8) package of UCCx8C4x based on two different industry-wide used reliability standards:
| FIT IEC TR 62380 / ISO 26262 | FIT (Failures Per 109 Hours) |
|---|---|
| Total Component FIT Rate (71.6 mW, 150 mW, 300 mW) | 22, 22, 25 |
| Die FIT Rate (71.6 mW, 150 mW, 300 mW) | 3, 3, 5 |
| Package FIT Rate (71.6 mW, 150 mW, 300 mW) | 19, 19, 20 |
The failure rate and mission profile information in Table 2-1 comes from the Reliability data handbook IEC TR 62380 / ISO 26262 part 11:
| Table | Category | Reference FIT Rate | Reference Virtual TJ |
|---|---|---|---|
| 5 | CMOS,
BICMOS Digital, analog / mixed | 20 FIT | 55°C |
The Reference FIT Rate and Reference Virtual TJ (junction temperature) in Table 2-2 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.