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

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---------- 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