Other Parts Discussed in Thread: LM5022, LM5156H
Dear Texas Instruments Support,
I hope this message finds you well. I am currently working on a design project with the specific goal of achieving a power supply average lifespan of 15 years.
I noticed in the datasheet for the LM51561H that it is designed to meet or exceed AEC-Q100 grade 1 specifications. However, in the best-case scenario with JUNCTION TEMPERATURE = 101°C, the POH Breakdown is 11,000 Hours, which falls far short of my target of 132,000 hours.
I must admit that I am still navigating this topic and would greatly appreciate any guidance or resources you can provide to help me better understand the relationship between POH, average lifespan, and how to ensure long-term reliability in my designs.
Do you happen to have a simple calculator or tool that allows me to input the conditions relevant to my application and obtain a more realistic average lifespan estimate?
I also read in the datasheet that there is additional information regarding extended reliability for the LM5156x. This information would be very helpful in my evaluation.
Maybe I do not choose correcly the right chip, and I must to explore an alternative solutions, such as the legendary LM5022, and I trust your experience and guidance to steer me in the right direction. Your input on suitable components for my application would be invaluable.
Thank you for your assistance, and I look forward to your response.
Best regards,
JAMS
