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LM3880 : distribution diagram of VEN

Satoshi
Guru 19645 points

If there distribution diagram of VEN typ value(1.25V @25℃), please let me know.

(Dispersion of 25℃ condition)

Best regards,

Satoshi

  • 0
    TI__Genius 12630 points

    Hi Satoshi,

    The distribution doesn't vary much from the typical value of 1.25V at 25℃. I took 2 samples in the lab and tested. These were the results:

    Sample #1 at 25℃

    At Vin = 2.7V, Ven = 1.25V

    At Vin = 3.3V, Ven = 1.25V

    At Vin = 5.5V, Ven = 1.26V

    Sample #2 at 25℃

    At Vin = 2.7V, Ven = 1.22V

    At Vin = 3.3V, Ven = 1.22V

    At Vin = 5.5V, Ven = 1.24V

    As you can see, the Ven is right around 1.25V and should always be within the MIN and MAX values found in the datasheet of 1V to 1.4V