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CD4050B: The Item of function test

Shinichi Inoue
Guru 21791 points
Part Number: CD4050B


Dear Specialists,

My customer is considering CD4050 and has questions about device function test.

I would be grateful if you could advise.

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We'd like to conduct a kind of stress test(thermal, shock and etc) and confirm deterioration of the device.

We perform a simple test of the device before and after the examination and confirm the difference.

I picked up specific items.
Are these items sufficient?

・IDD(Max) Quiescent device current

・IOL(Min) Output low (sink) current

・IOH(Min) Output high (source) current

・VOL(Max) Out voltage low level

・VOH(Min) Output voltage high level

・VIL(Max) Input low voltage

・VIH Input high voltage

・Propagation delay time Low to high

・Propagation delay time High to low

Could you please provide the test circuit your recommend.

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I appreciate your great help in advance.

Best regards,

Shinichi

  • 0
    TI__Genius 16735 points
    Hello Shinichi,

    www.ti.com/.../cd4050b.pdf
    You would need to test all the Electrical Characteristics listed in sections 6.5 and 6.6 from the datasheet to get a thorough report on the part.
    As regards to the test circuits, section 6.5 and 6.6 provide the test conditions for those tests and section 7.1 provides all the test circuits that can be used.

    If you have any questions relating to a particular test then please post an E2E question to ask.

    Thanks!
    -Karan