Help Identifying Mystery IC


Closed Thread
Results 1 to 6 of 6
  1. #1
    Join Date
    Feb 2003
    Location
    Salt Lake City, Utah USA
    Posts
    517

    Smile Help Identifying Mystery IC

    I am trying to tap into an existing board and drive some transistors using a PIC. Right now, the transistors are being driven from the 24 pin chip in the picture labeled:
    Si 0706
    HV9980WG
    E6129656 CB
    where the Si looks like a lightening bolt “S” followed by an “i”

    Can anyone tell me who makes this chip (who is Si) and/or tell me what this chip does?

    I thank you in advance for your help.

    Paul
    Attached Images Attached Images  
    Paul Borgmeier
    Salt Lake City, UT
    USA
    __________________

  2. #2
    Join Date
    May 2004
    Location
    NW France
    Posts
    3,611


    Did you find this post helpful? Yes | No

    Default

    Hi, Paul

    This chip seems to come from Supertex inc. ( HV 9980 xx )

    http://www.supertex.com/company.html

    package photo here :

    http://www.supertex.com/pdf/misc/SGS...2006_47518.pdf

    probably a supply controller ... but can't find any data.

    Alain
    Last edited by Acetronics2; - 26th May 2007 at 10:30.
    ************************************************** ***********************
    Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
    ************************************************** ***********************
    IF there is the word "Problem" in your question ...
    certainly the answer is " RTFM " or " RTFDataSheet " !!!
    *****************************************

  3. #3
    Join Date
    Feb 2003
    Location
    Salt Lake City, Utah USA
    Posts
    517


    Did you find this post helpful? Yes | No

    Smile

    Hi Alain,

    Thanks thanks thanks - I am a lot closer thanks to your post. I know believe it does complex PWM for multiplexed LED illumination.

    Paul
    Paul Borgmeier
    Salt Lake City, UT
    USA
    __________________

  4. #4
    Join Date
    Aug 2006
    Location
    Look, behind you.
    Posts
    2,818


    Did you find this post helpful? Yes | No

    Default

    Quote Originally Posted by paul borgmeier View Post
    Hi Alain,

    Thanks thanks thanks - I am a lot closer thanks to your post. I know believe it does complex PWM for multiplexed LED illumination.

    Paul
    Hi Paul,
    That chip is likely made specificly for that manufacturer. Here is a link to similar off the shelf chips by supertex.

    http://www.supertex.com/pdf/misc/led...s_selector.pdf
    If you do not believe in MAGIC, Consider how currency has value simply by printing it, and is then traded for real assets.
    .
    Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants - but debt is the money of slaves
    .
    There simply is no "Happy Spam" If you do it you will disappear from this forum.

  5. #5
    Join Date
    Feb 2003
    Location
    Salt Lake City, Utah USA
    Posts
    517


    Did you find this post helpful? Yes | No

    Default

    Joe,

    Thanks for the link - I stumbled across that after Alain posted the main supetex site. That is what led me to believe this 24 pin beast is PWMing stuff since most of the smaller packaged devices that are on the website are PWM units. I also confirmed this yesterday with my scope. I also have a (maybe not so good) lead that pelikon may be involved ...? time will tell and thanks again.

    Thanks,
    Paul Borgmeier
    Salt Lake City, UT
    USA
    __________________

  6. #6
    Join Date
    Sep 2004
    Location
    montreal, canada
    Posts
    6,898


    Did you find this post helpful? Yes | No

    Default

    Good, nice you found at least some info. Like Joe S, i think it's a custom made model. Specific information on THIS specific one seems impossible to find.

    Good luck Mr RabbitResearch... euh... sorry... Paul
    Steve

    It's not a bug, it's a random feature.
    There's no problem, only learning opportunities.

Similar Threads

  1. lambda probe interface IC - CJ125 from Bosch
    By almarto in forum Off Topic
    Replies: 16
    Last Post: - 29th March 2011, 19:36
  2. Colour TV Display IC
    By zadok in forum Off Topic
    Replies: 6
    Last Post: - 30th September 2009, 01:16
  3. Digital IC Tester
    By precision in forum mel PIC BASIC Pro
    Replies: 1
    Last Post: - 18th September 2006, 04:38
  4. Reading of DALLAS DS12C887 Timer IC
    By yavar in forum mel PIC BASIC Pro
    Replies: 0
    Last Post: - 21st August 2006, 10:18
  5. recording sound to an IC
    By saturnX in forum Off Topic
    Replies: 3
    Last Post: - 11th October 2005, 18:44

Members who have read this thread : 1

You do not have permission to view the list of names.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts