SFFS175A September 2021 – February 2023 TCAN1044A-Q1 , TCAN1044AEV-Q1
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This document contains information for TCAN1044A-Q1, TCAN1044AV-Q1, and TCAN1044AEV-Q1. These are Controller Area Network (CAN) transceivers. The TCAN1044A-Q1 and TCAN1044AV-Q1 come in the SOIC (D), VSON (DRB), and SOT (DDF) packages to aid in a functional safety system design. The TCAN1044AEV-Q1 comes in the SOIC (D) and SOT (DDF) packages to aid in functional safety system design. Information provided are:
#GUID-E488EBD4-511E-41B0-B770-91A9719CA4DD shows the device functional block diagram for reference. TCAN1044AV-Q1 and TCAN1044AEV-Q1 have the VIO input at pin 5, while TCAN1044A-Q1 has a no connect (NC) at pin 5.
This section provides Functional Safety Failure In Time (FIT) rates for TCAN1044A-Q1, TCAN1044AV-Q1, and TCAN1044AEV-Q1 based on two different industry-wide used reliability standards:
FIT IEC TR 62380 / ISO 26262 | FIT (Failures Per 109 Hours) 8-pin SOIC (D) | FIT (Failures Per 109 Hours) 8-pin VSON (DRB) | FIT (Failures Per 109 Hours) 8-pin SOT (DDF) |
---|---|---|---|
Total Component FIT Rate | 10 | 7 | 5 |
Die FIT Rate | 3 | 3 | 3 |
Package FIT Rate | 7 | 4 | 2 |
The failure rate and mission profile information in #GUID-E0AE5370-5A0E-4343-9E17-61DD7474D016/GUID-D2F32BF7-F0F2-45BD-945E-5E9A117DF52F comes from the reliability data handbook IEC TR 62380 / ISO 26262 part 11:
Table | Category | Reference FIT Rate | Reference Virtual TJ |
---|---|---|---|
5 | CMOS/BICMOS ASICs Analog & Mixed =<50V supply | 20 FIT | 55C |
The Reference FIT Rate and Reference Virtual TJ (junction temperature) in #GUID-E0AE5370-5A0E-4343-9E17-61DD7474D016/GUID-F6448F76-6F1A-4872-8629-AFB15459B793 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.