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ESD321: Please explain how the V–I characteristics change as temperature increases.

Yasuo Suzuki
Prodigy 20 points

Part Number: ESD321

(1)To investigate the temperature characteristic of the EDS321DYAR,please provide the following room-temperature factors: (a)VCL, (b)VBR, (c)Ipp, (d)RDYN

(2) Using (a)-(d), please explain how the V–I characteristics of the attached TVS diode change under high-temperature conditions. 

(3) Could you provide an explanation that the temperature characteristics of the ESD321DYARE are equal to or better than those of the PESD5V0U1UB (Nexperia)? 

 

V–I characteristics.png

  • 0
    TI__Expert 5980 points

    Hi Yasuo,

    You can see our electrical characteristics at room temperature in our datasheet.

    For IPP across temperature, please consider the following plot:

    For VBR at room temp, you can see in our datasheet, 4.5V min and 7.5V max. Across temp the limits ate 4.0V min and 8.5V max.

    Unfortunately we do not have VCLAMP or RDYN across temperature. Typically RDyn decreases with higher temperature which is directly proportional to VClamp indicating that it would also decrease.

    Regarding Nexperia device, I do not know their characteristics across temperature so I would not be able to answer the last question. Regardless, our VBR values are better than Nexperia's device and I would expect this to be the same across temperature since all diodes tend to behave the same way across temperature. Our IEC 61000-4-2 Rating is better and capacitance is much better as well.

    Best,

    Bryan