> As a short term protection can you stack a series of zenor diodes
> together such that if the V out is higher then say 3.7V the diodes kick
> on and protect the other stuff?
I was thinking a 1.7v zener would drop the 5v down to 3.3 but I don't
have one of those either.
> By the way what is the
DJ,
As a short term protection can you stack a series of zenor diodes
together such that if the V out is higher then say 3.7V the diodes kick
on and protect the other stuff?
By the way what is the part? Maybe I can sneak one in on my next digikey
order.
Steve M.
DJ Delorie wrote:
>>In this case
> In this case I would replace the part. I have had voltage regulators
> break a leg and then dump the voltage in into the voltage out taking
> a lot of stuff with it.
Not what I want! Ok, I'll put together another part order. Time to
start stocking up for the next furnace board, I suppose :-)
You got two puffs of magic smoke from one device and then it starts to work?
In this case I would replace the part. I have had voltage regulators
break a leg and then dump the voltage in into the voltage out taking a
lot of stuff with it.
Steve Meier
DJ Delorie wrote:
>>I have dead bugged voltag
> I have dead bugged voltage regulators a number of times due to uhm
> dsylexic reading of pinouts. I have never had a deadbugged voltage
> regulator properly wired then cause damage to another component. So
> relax, smile, fix the pinout issue because you really hate yourself when
> you do the s
I have dead bugged voltage regulators a number of times due to uhm
dsylexic reading of pinouts. I have never had a deadbugged voltage
regulator properly wired then cause damage to another component. So
relax, smile, fix the pinout issue because you really hate yourself when
you do the same thing f
[snip]
>Is majordomo still running? I think you need to go in through the
>mailman I/F instead (http://www.seul.org/cgi-bin/mailman/listinfo/geda-dev).
>
>But... don't bother. It doesn't work either.
I don't understand, the web interface to mailman should work fine.
What error message are
Did we pass?
Stuart Brorson wrote:
> Sorry for the test...
>
>
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>
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[snip]
>Dang! That's always disappointing... At least the list server is back...
Yes, the lists are back. Seems the upgrade on Monday didn't go
as well. Guess we should blame the person doing the update... oh wait..
D'oh. I'll keep watching to make sure it stays working.
DJ Delorie wrote:
Anyone know of a SOT-23 3.3v LDO regulator with this (unusual) pinout?
Vout
|
+-+
| |
+-+
| |
Vin Gnd
(yes, I had the wrong pinout in gschem, let all the magic smoke out)
Dang! That's always disappointing... At least
> Maybe an LM3480 rotated 120 deg?
My "fried" one is mounted that way. I did so to see *if* I could
solder it that way (I can), and it turns out it's still functional.
But... I'm not sure if I should trust it, and it looks funny that way.
I just hope I didn't damage the ethernet chip, which is
DJ Delorie wrote:
Anyone know of a SOT-23 3.3v LDO regulator with this (unusual) pinout?
Vout
|
+-+
| |
+-+
| |
Vin Gnd
Maybe an LM3480 rotated 120 deg?
phil
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geda-u
Sorry for the test...
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Anyone know of a SOT-23 3.3v LDO regulator with this (unusual) pinout?
Vout
|
+-+
| |
+-+
| |
Vin Gnd
(yes, I had the wrong pinout in gschem, let all the magic smoke out)
On the bright side, I tried the solder paste/hot plate reflow for the
Is majordomo still running? I think you need to go in through the
mailman I/F instead (http://www.seul.org/cgi-bin/mailman/listinfo/geda-dev).
But... don't bother. It doesn't work either.
Evan
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