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RoadTest Forum Seeking Your Feedback on RoadTesting an e-Fuse IC Eval Kit
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Forum Thread Details
  • Replies 14 replies
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  • roadtest survey
Related

Seeking Your Feedback on RoadTesting an e-Fuse IC Eval Kit

rscasny
rscasny 10 months ago

imageWhen I was first approached about roadtesting an e-Fuse Eval kit, I had the following thought bubble up from deep in my mind: Why would we roadtest a fuse?

Then, I went to dear Google and asked it about the growth of e-Fuses. I'm not going to quote any particular study, but the use of e-Fuses is growing considerably.

So, I agreed to the roadtest because e-Fuses have a lot of tech in them for their size and I feel the community should explore them. Perhaps even compare them to ye old fashioned trip-wire fuse. It's perhaps something a new member, first time roadtester, or the curious-at-heart would be interested in spending some "quality" time with.

In any event, I wanted to get your thoughts on roadtesting e-Fuses.

Here's some facts about the product:

EVB-TCKE805NA is a TCKE805NAe-Fuse IC evaluation board (EVB). It is an evaluation board for supporting TCKE8xx series-design. The passive components required to operate IC are mounted, enabling easy operation check and characterization. The evaluation board features:
• Input voltage range from 4.4V to 18V
• Output limit current range from 0.5A to 5.0A adjustable
• Adjustable slew rate
• Active high enable control
• Auto retry function
• Auto discharge
• Available in 3x3mm WSON10B package

Here's the schematic

image

Here's the documentation:

Instruction Manual

Here's my poll:

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Top Replies

  • robogary
    robogary 10 months ago +2
    I'm too tempted to try it out as as an SUP or MOV replacement :-) I wonder how it performs on short circuit current at the output with a big 30A DC supply feeding it :-) Wheres the AC version ? :-…
  • robogary
    robogary 10 months ago in reply to Jan Cumps +2
    MOVs are used for voltage transients. The transients are fast, heat usually doesnt get chance to dissipate to the enviroment. The heat is localized and often the end result is the MOV itself shorts and…
  • Jan Cumps
    Jan Cumps 10 months ago +1
    The board is supplied without reverse protection FET. The datasheet suggests Toshiba SSM6K513NU . Less than a $. Maybe the vendor could provide one of those?
  • Jan Cumps
    Jan Cumps 10 months ago

    The board is supplied without reverse protection FET. The datasheet suggests Toshiba SSM6K513NU . Less than a $. Maybe the vendor could provide one of those? 

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  • battlecoder
    battlecoder 10 months ago

    What a fascinating device. I have to admit I wasn't quite thrilled with a "fuse" but your short description of how sophisticated these devices actually are, definitely caught my attention. The fact that even the slew rate can be configured is kinda mind blowing.


    Now, I was already thinking of applying to a different Road test, and I don't think applying to two different RTs would be a good idea (although admittedly testing this one shouldn't take a lot of time, and sounds like lots of fun)

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  • aswinvenu
    aswinvenu 10 months ago
    rscasny said:
    hy would we roadtest a fuse?

    Very interesting! But just wondering if these devices can be used as a replacement for regular fuses in all use-cases. I was working on an Intrinsically safe device for an Atex Zone 0 device. Can these fuses used in such designs?

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  • dougw
    dougw 10 months ago

    A great way to get familiar with this cool technology.

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  • rsc
    rsc 10 months ago

    I could see adding one of these to a raspberry pi project for both the fuse and on/off functions.

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  • robogary
    robogary 10 months ago

    image

    I'm too tempted to try it out as as an SUP or MOV replacement  :-) 

    I wonder how it performs on short circuit current at the output with a big 30A DC supply feeding it   :-)  

    Wheres the AC version ?  :-) 

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  • Jan Cumps
    Jan Cumps 10 months ago in reply to robogary

    I wonder if this type of device could be a MOV replacement. MOVs are for inrush current, and need decent real estate to avoid that they evaporate.

    We can't avoid that an amount of heat needs to be generated, and survived, to make a MOV do its MOV work. Would a device of this size be able to pass that heat on to the environment?

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  • robogary
    robogary 10 months ago in reply to Jan Cumps

    MOVs are used for voltage transients. The transients are fast, heat usually doesnt get chance to dissipate to the enviroment. The heat is localized and often the end result is the MOV itself shorts and then vaporizes. I was being tongue in cheek about SUP. 

    The e Fuse spec doesn't list the transient spec, I would expect it to be applied like a category 1 where transients are "known and controlled" .  

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  • Jan Cumps
    Jan Cumps 10 months ago in reply to robogary

    I missed the pun :).

    robogary said:
    I would expect it to be applied like a category 1 where transients are "known and controlled" .  

    Yes. That's how I read the specs too.

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  • DAB
    DAB 10 months ago

    This unit could be fun to play with.

    I would be very interested in someone really putting this type of device through its paces.

    How about a design challenge?

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