• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 47 subscribers
  • Views 660 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

Sink/Source Current of TLV2460

Silas Smith
Prodigy 10 points
Other Parts Discussed in Thread: TLV2460

Hi, I am using a TLV2460 OpAmp as a voltage follower. 99% of the time (99% DC) there is a 2.65V difference in the non-inverting input and the output of the OpAmp. The non-inverting input sees 2.65V, while the output is at GND. The inverting input is connected to the output (voltage follower). My question is that since the output is connected to ground, and the IC is only rated for p/m 80mA, will this exceed the maximum ratings since it is trying to source 2.65V directly to GND? 

I have measured the current of entire circuit and doesn't go over 25mA which leads me to believe it is the proper range. 

Thank you. 

  • 0
    TI__Intellectual 2155 points

    Hello Silas,

    Just to confirm, you want to use the TLV2460 as a voltage follower, but with the output shorted to GND? Like in the circuit below?

    In this case the TLV2460 output will short to its positive rail (in this case 5V), since it is no longer able to equalize the voltage at the inverting and non-inverting terminals. And since the output is connected to GND, it will output it's short circuit output current that is 25mA.

    If you could provide me with a schematic of your design, I could give you a better answer. Why exactly are you shorting your output to GND?

    Best Regards,

    Mihir Gupta

    Field Applications Engineer,

    Texas Instruments