Need smart switch/intelligent switch type of current limit IC

Discussion in 'Electronic Design' started by Yzordderrex, Oct 16, 2008.

  1. Yzordderrex

    Yzordderrex Guest

    Greetings,

    I need to add current limit to a buck converter. The buck converter
    is good for about 1.5A -2A (TPS62110) while I would like to limit the
    current to about 0.2 amps. The reason I am using such a large
    converter is that I already have 2 on the board and it has a lot of
    other functions that I need) The converter is selectable 5v or 8v
    output. I am considering a resettable fuse kind of a thing but I
    suspect if the output is shorted I will get large narrow pulses that
    the resettable fuse will not respond to. I am not sure what my
    inductor will do with these large narrow pulses. Assuming the wire
    can handle the rms current, will the ferrite core have a problem with
    the large 2.5A pulses. Inductor is rated for 1.5A before Isat.

    I would like something like a Fairchild FPF2164 except it has to go to
    8v, or else something like a STmicro L6377 except it has to go down to
    5v. Unitrode/TI makes a part that might work, but it is a bit of a
    dinosaur (UC37131).

    I will be going to all the vendors today, but if anybody knows of
    somethingoff the top of head then please speak up.

    Regards,
    Bob
    N9NEO
    Just say NEO
     
    Yzordderrex, Oct 16, 2008
    #1
    1. Advertisements

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Similar Threads
  1. bonzo
    Replies:
    3
    Views:
    1,124
    Rich Grise
    Apr 24, 2004
  2. Mr.Magoo

    Smart meters aint so smart..

    Mr.Magoo, Nov 29, 2010, in forum: Hobby Electronics
    Replies:
    7
    Views:
    1,295
    Swanny
    Dec 1, 2010
  3. Mrjojo

    Limit Switch instead of Bumper Switch?

    Mrjojo, Jun 7, 2011, in forum: Microcontrollers and Programming
    Replies:
    6
    Views:
    1,346
    Mrjojo
    Jun 7, 2011
  4. micky

    What is smart about a smart DVD player?

    micky, Dec 14, 2013, in forum: Electronic Repair
    Replies:
    9
    Views:
    1,018
    William Sommerwerck
    Dec 16, 2013
  5. ron2k_1

    Need help with placement of 3 prong switch

    ron2k_1, Jul 24, 2016, in forum: Circuit Help
    Replies:
    3
    Views:
    352
    Bluejets
    Jul 24, 2016
  6. BillGunn

    What type of switch is this and how does it work?

    BillGunn, Aug 17, 2016, in forum: General Electronics Chat
    Replies:
    8
    Views:
    423
    Bluejets
    Aug 17, 2016
  7. wade7575
    Replies:
    10
    Views:
    1,225
    (*steve*)
    May 26, 2017
  8. seanspotatobusiness

    Ampacity of brass/thickness of brass wire needed

    seanspotatobusiness, Oct 1, 2016, in forum: General Electronics Chat
    Replies:
    6
    Views:
    532
    seanspotatobusiness
    Oct 25, 2016
Loading...