[sdiy] Difficult 2164 behaviour between different sections.
list at mikebeauchamp.com
Wed Jul 17 18:33:15 CEST 2019
Hey David, no the design isn't even done yet. What resistor am I adding
and is that shown on any datasheet or example?
On 7/17/19 12:30 PM, David G Dixon wrote:
> The other consideration here is that your unit will suck current like it's
> going out of style, when it's actually doing nothing. In the modular synth
> world, that's a concern, because folks tend to push their power supplies to
> the limit.
> If you can overcome this problem by adding one resistor (at a cost of less
> than a penny) to each Irwin circuit, then why wouldn't you? I guess if it's
> already done and being manufactured, then the official answer is that you
> probably don't have to worry, but if there's still an opportunity to change
> the design, then my choice would be crystal clear, experts be damned!
> -----Original Message-----
> From: Synth-diy [mailto:synth-diy-bounces at synth-diy.org] On Behalf Of Mike
> Sent: Tuesday, July 16, 2019 1:32 PM
> To: synth-diy at synth-diy.org
> Subject: Re: [sdiy] Difficult 2164 behaviour between different sections.
> Okay, thanks guys...
> so I can use 2164's in an application where they are almost never being
> used and set to "full hot"? I guess I'm just a bit paranoid before
> committing to any design that I'm making more than a few of.. I don't
> want my 10-year-in-the-future-self to be swamped with the task of
> finding a replacement for the 2164 and repairing things for years.
>> The old SSM2164 is specified to an abs.max junction temperature of 150C
>> and allowing worst case power and a DIP package would put the maximum
>> allowed case temperature at 130C. That would leave a burn mark on the
>> end of your finger.
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