datasheet TL4050 question

Discussion in 'General Electronics Chat' started by praondevou, Nov 29, 2013.

  1. praondevou

    Thread Starter AAC Fanatic!

    Jul 9, 2011
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    Hi ,

    http://www.ti.com/lit/ds/symlink/tl4050a10.pdf

    there is a parameter called:

    Long-term stability of reverse breakdown voltage. I understand how the data was obtained but I do not know what it means in practical terms.

    After 1000h the output voltage may have shifted 100ppm, ok. Does that mean after an additional it may have shifted another 100ppm? Or can it go back 200ppm? (100ppm in the other direction).

    Question is what is the maximum I can expect over a temperature range of -30C to +80C in the long run? The 15ppm at 1mA look good but the 100ppm after 1000h not so much.
     
  2. praondevou

    Thread Starter AAC Fanatic!

    Jul 9, 2011
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    Ok, let's forget this thread. I was confused. It's not 120ppm/°C, just 120ppm. In the end, 120ppm of 5V is not much.
     
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