Other Parts Discussed in Thread: BQ79606-Q1
Dear Mr. Mrs.
In the related question, you have almost resolved my questions.
But there are still some related questions need your help.
1. David Ray said: This SN29500 version FMEDA calculation tool will be generated and should be available by the end of this week (3/29). And the FMEDA calculation tool for SG3 and SG4 will be available at April 5th.
So After you have generated SN29500 version FMEDA calculation tool and new version for SG3 & SG4, can you send it to my E-mail(zizhen.yu@preh.cn) or add it into my TI account(zizhen.yu@preh.cn).
2. David Ray said: DVSS and CVSS are considered safety related and have GND open checks (SM24 and SM34). They are connected to AVSS so the loss of pin connections for the 2 AVSS pins are not considered safety related.
If we only use SM34 DVSS open check, but not use SM24 CVSS open check, is it OK and enough for VSS open check? because we only use one pcs BQ79606 in ECU, and use UART to communication, so the CVSS related SMs have been tailored.
3. Because we only use one pcs BQ79606 in ECU, and use UART to communication, so some not related SMs have been tailored.
I am hoping you could help determine if these failure modes are not safety-related or can be covered by other SMs and how to deal with these situation
- Sub-circuit block: A4_IREF, Failure mode: LDO_VLDO ref current offset......Because we only use one pcs BQ79606 in ECU, and use UART to communication. So this failure mode is not safety-related, OK?
- Sub-circuit block: A4_IREF, Failure mode: VIF ref current offset.....Same with "1". So this failure mode is not safety-related, OK?
- Sub-circuit block: H11_CLK_CTRL, Failure mode: HFO frequency div for digital core fault / Reset digital core fails to trip / UART clock output fault.......These failure modes are covered by SM500&SM502&SM508&SM509~SM513. But SM509~SM513 have been tailored due to the means of communication. So these failure mode can be covered by other SMs?
- Sub-circuit block: K1_OSC_32M, Failure mode: Drift of output frequency / Incorrect frequency fast>10% / Incorrect frequency slow>10%......These failure modes are covered by SM500&SM502&SM508&SM509~SM513&SM720. But SM509~SM513 have been tailored due to the means of communication. So these failure mode can be covered by other SMs? such as SM721?
