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RoadTest Forum Can you safely review this Digital Isolator?
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Forum Thread Details
  • Replies 15 replies
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  • RoadTest
  • digital isolator
  • toshiba
Related

Can you safely review this Digital Isolator?

OwainM
OwainM 13 days ago

Hey everyone,

I'm trying to work out how suitable the Toshiba DCM340L01  is for a RoadTest and would appreciate your input.

Reading through the datasheet it seems quite interesting, but due to the voltage it claims to be able to insulate from (5000Vrms), I'm not sure what equipment is required to put it through its paces.

What additional equipment might you need for a RoadTest?



Rather than just the IC alone, the chip is provided on a break-out board, as shown below.
image

The following documentation for the chip is provided from the manufacturer:

  • Manufacturer’s Page
  • Selection Guide 

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Top Replies

  • gpolder
    gpolder 13 days ago +4
    I would assume the isolation voltage meets the specification and focus instead on testing the data rate, presenting both input and output waveforms. A 5000 V isolation tester costs several thousand euros…
  • michaelkellett
    michaelkellett 13 days ago +3
    It's not a very good candidate for a road test. I use isolators in many designs and buy them from reputable suppliers. usually TI or Analog Devices, but sometimes others, including Vishay and Toshiba…
  • robogary
    robogary 13 days ago +3
    The Road Test is not really meant as a substitute for the suppliers QA testing, is it ? The voltage stress could be checked with a megger, I would expect few folks to have access to a hi-pot. Id be interested…
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  • dang74
    dang74 13 days ago

    Not an expert in this area, but can the isolation specification be tested by a battery powered hi-pot tester.  In spite of the high voltage I think its current is so low that it is relatively safe.

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  • dang74
    dang74 13 days ago

    Not an expert in this area, but can the isolation specification be tested by a battery powered hi-pot tester.  In spite of the high voltage I think its current is so low that it is relatively safe.

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