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Help Identify this chip

Discussion in 'Datasheets, Manuals and Component Identification' started by Marius Muller, Apr 8, 2017.

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  1. Marius Muller

    Marius Muller

    8
    1
    Apr 8, 2017
    IMG_0275.JPG This chip in the Photo U4.8 pin letters AGR 1AJ and a small + above pin 1.It is connected to gate pins of low power Mosfets .I need the manufacturer so I can obtain the datasheets to set up a ATE testing program.Thankyou.
     
  2. davenn

    davenn Moderator

    13,668
    1,891
    Sep 5, 2009
    so what is the circuit board from ?
    that may help some on id the chip
     
  3. Marius Muller

    Marius Muller

    8
    1
    Apr 8, 2017
    A few of these chips are on a AC-DC / Switchmode PSU Pcboard.The board is part of a Medical Ultrasound Machine Model MINDRAY DC8
     
    davenn likes this.
  4. 73's de Edd

    73's de Edd

    2,935
    1,245
    Aug 21, 2015
    What I really think that what you may have found yourself there, is a MOSFET driver chip .
    Does it only have one MOSFET tied into it or are there being two, tied into it?
    But there are not a lot of them that are only using eight pins, but that may simplify the search.
    Check out the Linear tech . . . . .LTC1154 or the Fairchild FAN7842 to see if their output connection
    to components agree with your circuits by comparison .
    The cryptic little " shorthand " Alpha -numeric designations are totally useless, until you find its manufacturer data sheet and then look to see if they have assigned those designations to some of their microchips .

    73's de Edd
     
    Last edited: Apr 10, 2017
    davenn likes this.
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