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SN65HVD3082E: Driver Rise and Fall Time versus Temperature graph

Kazuya Nakai59
Guru 20785 points
Part Number: SN65HVD3082E
Other Parts Discussed in Thread: SN65HVD3088E

Hello guys,

One of my customers is evaluating SN65HVD3082E on their own board for new products.

The device datasheet has "SN65HVD3088E Driver Rise and Fall Time versus Temperature" graph on page 10.
They measured 3082E driver rise/fall time on their board. The trend of rise/fall time vs temp was opposite from 3088E graph.

At this moment, they have the following questions. Could you please tell me your reply?

Q1. Do you have "SN65HVD3082E Driver Rise and Fall Time versus Temperature" graph?

Q2. Should SN65HVD3082E Driver Rise and Fall Time versus Temperature graph be same as SN65HVD3088E one?

Your reply would be much appreciated.

Best regards,

Kazuya.

  • 0
    TI__Mastermind 46777 points

    Hi Kazuya,

    1. No - the graphs in the datasheet are the ones we have.

    2. The general trend line should be similar - however the 82E is much slower than the 88E so the 82E will be slower - but it should get slower with temperature increases - not faster (silicon becomes more resistive with increased temperature - creating longer time constants within the circuit leading to slower switching performance. 

    How are they measuring this? What does their test setup look like? How many units have been tested? 

    Please let me know!

    Best,

    Parker Dodson

  • 0 in reply to Parker Dodson
    Guru 20785 points

    Hi Parker,

    Thank you very much for your reply.

    The customer sent me their waveforms. But they don't want to disclosed on this E2E.
    So I will send you a friendship request because I'd like to show you the waveforms on the friendship site.

    Could you please approve my request?

    Thank you again and best regards,

    Kazuya

  • 0 in reply to Kazuya Nakai59
    TI__Mastermind 46777 points

    Hi Kazuya,

    Yes I will approve the friend request - and I will just send you my email address there and we can continue the discussion offline as I understand your customer not wanting to share the information on a public forum. I will close the thread on here now. 

    Best,

    Parker Dodson