• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 62 subscribers
  • Views 571 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS2112: ask for TEST CONDITIONS of TPS2112 data sheet.

Ken Hashi
Intellectual 790 points
Part Number: TPS2112

Hello,

I want to ask　TEST CONDITIONS of TPS2112 data sheet.

TPS2112 works VI(VSNS)=0V and VI(IN2) > VI(IN1) is "IN1" is active at truth table.

but on the datasheet below is "IN2" is active.

Is it different from truth table.
Is it true?　or another meaning?

Best regards,

k-hashi.

  • 0
    TI__Genius 15740 points

    Hi k-hashi,

    Here is the sentence from the datasheet that describes the logic of the device:

    "The TPS2112/3 only supports the auto-switching mode. In this mode, OUT connects to IN1 if VI(VSNS) is greater than 0.8 V, otherwise OUT connects to the higher of IN1 and IN2."

    Based on this description, the truth table for the device is correct. However, this means that there is a typo in the datasheet for the electrical table. Under the conditions you highlighted (VI(SNS) = 0V, /EN = Low, VI(IN1) = 5.5V, VI(IN2) = 3.3V) input 1 would be active, so I would read the datasheet in this way. I will look into getting this corrected.

    Thanks,

    Alek Kaknevicius

  • 0 in reply to Aleksandras_Kaknevicius
    Intellectual 790 points
    Hi Alek-san

    Thank you for your reply.
    I understood your answer.

    Best regards,

    K.Hashi