Part Number:BQ79758-Q1
This AFE is ASILD integrity, when we do the 48V/12V BMS ASILC/ASILD function design for voltage/current/temperature sampling, Is it necessary to use redundant AFEs ? If the independent AFEs can ensure the redundant design and diagnosis of voltage/current/temperature sampling(compliance to ISO26262-5:2018 Appendix D table D.9)?

Taylor:
Hi,
We have received your post and the investigation will take some time. Thank you for your patience.
,
Taylor:
单个AFE方案符合ASILD要求,但针对48V/12V这种混合高压场景,可能有潜在共因失效风险,在成本允许时采用双AFE架构可能更保险。
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Yaqing SUN:
感谢答复,我想我需要再澄清问题描述, 是12V BMS ASILC 设计或者48V BMS ASILC 设计都各自使用单个AFE BQ79758, 不会12V和48V混合共用一个AFE;
汽车行业当前确实要考虑的产品成本,因此想得到确认;
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Taylor:
都各自使用单个AFE的话,就不会有问题了。
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