General functional safety (ISO26262) power supply solution from TI

Sheldon He

Hi expert,

My customer would like to seek help from TI to do a 12V to 5V step down solution in automotive. Do we have ready solution, IC or material to help them?

Thanks

Sheldon

over 5 years ago

0 JohnTucker over 5 years ago

TI__Guru**** 191445 points

Sheldon,

What is the required maximum current/ What is the full input voltage range, including transients?

0 Sheldon He over 5 years ago in reply to JohnTucker

TI__Expert 8585 points

Hi John,

Thanks for your reply, but my point is not detailed specs for this power supply, my point lies on how we or if we can support customer designing ASIL-C and ASIL-D power supply.

Thanks

Sheldon

0 JohnTucker over 5 years ago in reply to Sheldon He

TI__Guru**** 191445 points

Sheldon,

I will assign this thread to our functional safety champion.

0 Sheldon He over 5 years ago in reply to JohnTucker

TI__Expert 8585 points

Hi John,

Thanks for that!

Sheldon

0 Steve Schnier over 5 years ago in reply to Sheldon He

TI__Expert 4645 points

John,

We have begun publishing FIT and FMD information for some of our Q1 devices to aid in the calculations our customers must do to create an ASIL end product.

The failure mode distribution estimation 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 rates listed reflect random failure events and do not include failures due to misuse or over stress.

All of our TPS6213x-Q1, TPS6215x-Q1, TPS6216x-Q1, and TPS6217x-Q1 are catalog product and not compliant to ISO-26262 standards by themselves.

You can get the FIT and FMD data on the product page under "Technical Documentation".

An example is here: .

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General functional safety (ISO26262) power supply solution from TI