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High density drivers?

Discussion in 'Electronic Design' started by dave94024, Feb 17, 2007.

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  1. dave94024

    dave94024 Guest

    I have an application that requires Totem pole type drivers to deliver
    ~1A for <1us. I need a lot of these setup in essentially a long chain
    of H bridges into non-inductive loads. There is nearly no duty cycle
    to speak of, each driver energized every few seconds or less (only
    while in use).

    I can of course do this with discretes but I have to make it as small
    as practicable. I'll be driving these drivers with 5v logic from a
    microcontroller. I need nearly a 100 of these high/low drivers and
    have looked at various solutions. This is not for a long-term product
    and I'm willing to exceed the rating of the parts in question (as long
    as they'll survive for a few months of sporadic use, figure 1000
    activations tops (for each driver)).

    Any thoughts or suggestions?

    Thanks,
    Dave.
     
  2. John  Larkin

    John Larkin Guest

    How much output voltage? There are some SO-8 (or dip8) dual mosfet
    gate drivers that might work.

    What's the application?

    John
     
  3. dave94024

    dave94024 Guest

    How much output voltage? There are some SO-8 (or dip8) dual mosfet
    The loads are 5-6 ohms each and there's one set of drivers on either
    side, so we need whatever voltage is required to drive a little over 1
    amp through the load (accounting for the RdsOn of the gates or the
    diode drops of transistors (if we're using them)).

    I was using some dual Mosfets up till now without any problems (in an
    even smaller package actually), but I'm looking for something denser
    if possible.

    Dave.
     
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