SFFS162 July   2021 TPS37

 

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3 Failure Mode Distribution (FMD)

The failure mode distribution estimation for TPS37 in Table 3-1 comes from the combination of common failure modes listed in standards such as IEC 61508 and ISO 26262, the ratio of sub-circuit function size and complexity and from best engineering judgment.

The failure modes listed in this section reflect random failure events and do not include failures due to misuse or overstress.

Table 3-1 Die Failure Modes and Distribution
DIE FAILURE MODESFAILURE MODE DISTRIBUTION (%)
RESET1_XXXX / fails to trip8%
RESET1_XXXX / false trip8%
RESET1_XXXX / trip outside specification (voltage or time)31%
RESET1_XXXX / delay outside specification3%
RESET2_XXOD / fails to trip8%
RESET2_XXOD / false trip8%
RESET2_XXOD / trip outside specification (voltage or time)31%
RESET2_XXOD / delay outside specification3%