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ATL432LI: ATL431LI continuous cathode range smaller then AS431

Rock Shao
Expert 2895 points
Part Number: ATL432LI
Other Parts Discussed in Thread: ATL431LI, ATL431, TL431LI

Hi,

My customer would check the IKA between TI ATL431LI and diode AS431

There have differences between ATL431 and AS431 IKA, you can see in the following table.

Will it cause poor performance because of the small data?
What are the advantages of Atl431LI compared with AZ431?
Is there anything that needs to be paid attention to in the application of the small IKA?
Why is the range of ALT431LI IKa so narrow?
 

TI TL431LI

Diodes AS431

https://www.diodes.com/assets/Datasheets/AS431.pdf 

  • 0
    TI__Intellectual 1735 points

    Hi Rock,

    The ATL431LI has a lower minimum cathode current for regulation as well as lower reference current. Depending on what matters to the customer, those can be substantial. These are the tradeoffs made to allow for a lower power part in the ATL431LI. Oneconsideration when using a part with lower IKA is to not go above the max value - the part was not designed to operate in that region.

    -Tony