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ULN2003A: Difference between ULN2003A and ULN2003AI.

Guru 10745 points
Part Number: ULN2003A

Hi team,

I'd like to know about the difference between ULN2003A and ULN2003AI for VOH.

Why is there a difference between Vs-50mV and Vs-20mV?
Does the internal structure make a difference?

BR,
Kengo.

  • Hi Kengo-san,

    The difference between the two is ambient operating temperature - ULN2003A is rated for -40 to 70C whereas ULN2003AI is rated for -40 to 105C. The difference in VOH spec is due to the ULN2003AI's wider temperature range.

    Thanks,

    Patrick

  • Hi Patrick-san,

    Exactly, I understood that temperature ranges are different.
    But, according to the datasheet, VOH is different under the same conditions as TA=25.
    I'd like to know why this spec is different.

    BR,
    Kengo.

  • Hi Kengo-san,

    Since this is an old device, we haven't recently defined the specifications. However, I believe that the same value for 25C and across full temp was used for extra security - I don't think the internal structure makes a difference.

    Thanks,

    Patrick