Re: Improved TLP250 Toshiba optocouplers for IGBT/FET TC apps (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Wed, 20 Jun 2007 19:26:55 -0700 (PDT)
From: Brett Miller <brmtesla2@xxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Improved TLP250 Toshiba optocouplers for IGBT/FET TC apps (fwd)

Dave,

Hey that's really cool!  I have some simple C source
code I was intending to use to make a fancier
interrupter/tone synthesizer for SSTC/DRSSTC projects.
 I wanted to run it via the parallel port.  I even
have a schematic that I drew for a possibly RS232 =>
UCC373xx interface.  The only question was proper
isolation.  These optocouplers might be just the
thing.

I have so many other projects I'm working on right
now, the laptop software defined interrupter idea took
the back burner.  It seems like the trendy thing to do
these days is use a uController, but since I prefer a
remote interrupter anyway, why not use an old cheap
toshiba laptop?

-Brett


--- Tesla list <tesla@xxxxxxxxxx> wrote:

> 
> ---------- Forwarded message ----------
> Date: Thu, 21 Jun 2007 01:56:10 +0000
> From: Sparktron01@xxxxxxxxxxx
> To: Tesla List <Tesla@xxxxxxxxxx>
> Subject: Improved TLP250 Toshiba optocouplers for
> IGBT/FET TC apps
> 
> Was checking Digikey during lunch and found out that
> Toshiba has
> enlarged the classic "TLP250" family of IGBT/FET
> optocouplers
> 
> TLP250F<NEW>, HV version of original TPL250, BJT
> output,
> +/-2.5A pk drive, FET/IGBT 6.0kV pk isolation. Cost
> (10) $15.00, (1) $1.88.  
> 
> Lead and package configuration change to support
> higher voltage
>  tracking distance, same relative commutation speed
> as original part.
> (specified as ton and toff of <0.5us, typical speed
> observed was ton < 0.2us,
> toff < 0.4us).  Still a typical DIP8 package (sorry
> SOI8 has insufficient
> tracking distance to hold off 6.0kV pk and achieve
> compliance certs).
>  
>
http://www.toshiba.com/taec/components2/Datasheet_Sync//212/4256.pdf
>  
> TLP351<NEW>, FET version of original TPL250, FET
> output,+/-0.6A pk drive, 
> FET/IGBT 6.0kV pk isolation. Cost (10) $14.00. (1)
> $1.75.
>  
>
http://www.toshiba.com/taec/components/Datasheet/Tlp351.pdf
>  
> TLP350 <NEW JUST ANNOUNCED 2006>, FET output +/-2.5A
> pk designed
> for high speed (induction heating) applications,
> INCLUDES UVLO (undervoltage
> lockout on isolated DC power to FET/IGBT
> opto-amplifier  =>12 V).
> Improved bidirectional switching characteristics
> (260/260ns); higher
> frequency (50kHz vs 25kHz then original TLP250/351
> and HV TLP250F).
> UVLO - prevents output pulses from isolated photo
> amplifier (HV side) 
> even with input LED clocking unless input isolated
> DC voltage is 
> ~ 12V or greater (VCC+, VEE-), up to 30V or +/-12 to
> 15VDC is acceptable.
> 
> NEW offering, no stock at Digikey yet, new product
> offering (2006).
> I suspect this part will become the preferred photo
> coupler IGBT driver for 
> DRSSTC/OLTC/SISG applications once manufacturing
> ramps up.
> I suspect unit cost will be < $3.00 US each.
>  
>
http://www.toshiba.com/taec/components2/Datasheet_Sync//212/21648.pdf
> 
> Regards
> 
> Dave Sharpe, TCBOR/HEAS
> Chesterfield, VA.   USA
> 
> 
> 
> 



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