finding equivalent Ic

Discussion in 'General Electronics Chat' started by goheer, Sep 23, 2011.

  1. goheer

    Thread Starter New Member

    Sep 23, 2011
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    Please help me with an equivalent Ic to LM3909 SN75374N
    thanks
     
  2. #12

    Expert

    Nov 30, 2010
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    First, we start with what exactly those chips are. Datasheets attached.

    Then we go to "Projects", second page, where I asked for exactly the same thing (for two different chips) 3 days ago, and got nothing for an answer. Apparently the answer is, "Not Frankly Likely", but you never know. There are some pretty smart denizens on this site.
     
    Last edited: Sep 23, 2011
  3. SgtWookie

    Expert

    Jul 17, 2007
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    SN75374 is an active part; TI's making them.
    http://www.ti.com/product/sn75374
    Arrow Electronics has them in stock:
    http://components.arrow.com/part/detail/966500S7305525N7713
    Mouser: http://www.mouser.com/ProductDetail...=sGAEpiMZZMvbYnN5EaJWBGMSBcrQTnKjT6fEbhBixck=
    Avnet: http://avnetexpress.avnet.com/store...=500201&langId=-1&storeId=500201&listIndex=-1

    Futurlec apparently has some LM3909's in stock:
    http://www.futurlec.com
    but their customer service is terrible, they charge your credit card right away, and your shipment might not arrive for months. Futurlec is not an authorized distributor for National, so I have sincere doubts if they are the "real thing".

    The LM3909 was discontinued years ago.
    Here is a discrete equivalent of an LM3909:
    http://home.cogeco.ca/~rpaisley4/LM3909.html

    Although you'd be better off to just use something like a CMOS 555 timer.
     
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  4. t06afre

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  5. SgtWookie

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  6. t06afre

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  7. SgtWookie

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    Jul 17, 2007
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    From the other thread that you started:
    This will be hard for us to do. We have no idea what might be available in Pakistan. Besides this, I do not know of another MOSFET gate driver that has the same exact function.

    Can you order parts from Singapore or India?
    Mouser in Singapore has SN75374N ICs available:
    http://sg.mouser.com/ProductDetail/...=sGAEpiMZZMvbYnN5EaJWBGMSBcrQTnKjT6fEbhBixck=
     
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  8. t06afre

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    You have to get this part at the supplier who has it. Or dig it out from some other equipment I am afraid.
     
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