• State
  • Locked Locked
  • Replies 2 replies
  • Subscribers 46 subscribers
  • Views 374 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.

XTR111 Increased Output Current

abhimanyu chowdhury
Other Parts Discussed in Thread: XTR111, XTR110

To Ian,

Hi, this is abhimanyu.I want to use XTR111 for high current applications, i.e i would be needing a Voltage to current driver in the range of 0-40 mA. My load resistance will be around 400 ohms. Can you kindly assist me whether this functionality can be achieved by connecting two XTRs in parallel. Alternatively can you also tell me that whether continuous operation around 36 mA with single XTR will pose some problem?Waiting for your early reply.

Regards,

Abhimanyu

  • 0
    TI__Guru 64125 points

    Hi Abhimanyu,

    So this post will be easier to find for others in the community, I'm going to make this into a new thread and will answer it there.

    Regards,
    Collin Wells
    Precision Linear Applications

  • 0 in reply to Collin Wells
    TI__Guru 64125 points

    Hello Abhimanyu,

    You will not be able to connect two XTR devices in parallel to increase output current, this method will not work.

    As specified in the XTR111 datasheet, it will work with derated performance from 0.1mA - 36mA.  Therefore to answer one of your questions as long as the device is rated for your desired output current then it will function without issues assuming the maximum device temperature ratings are observed.

    My recommendation for your 0-40mA application will be the XTR110.  It is specified for derated performance from 0 - 40mA without any external circutiry or changes.  If you are interested in greater output current ranges then I would suggest you look at the "Extended Span" section of the datasheet and corresponding image in Figure 10.

    Let us know if you have any additional questions.

    Regards,
    Collin Wells
    Precision Linear Applications