Re: SSTC Power FET's w/ High Speed Body Diodes

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "K. C. Herrick" <kchdlh-at-juno-dot-com> 

You're right about those diodes--a pain in the back end.  I can't
understand why IR & others had not, long ago, alternately packaged their
MOSFET lines that way.  I've blown out essentially as many Schottky
diodes as MOSFETs (dozens upon dozens upon...) during my "career"--but,
interestingly, only a very few antiparallel diodes.

Ken

On Fri, 16 Jan 2004 11:56:30 -0700 "Tesla list" <tesla-at-pupman-dot-com>
writes:
 > Original poster: David Sharpe <sccr4us-at-erols-dot-com>
 >
 > Ken
 >
 > IDK.  I suspect that they are intended for production release
 > and may have some yield issues.  Yea I saw no inventory either,
 > but wanted to post this ASAP to let SSTCoiler be aware that
 > manufacturer's hadn't forgetten them, and the schottky diode +
 > antiparallel diode is a well known shortcoming of high power
 > FET converters...
 >
 > Regards
 > Dave Sharpe, TCBOR/HEAS
 > Chesterfield, VA. USA
 >
 > Tesla list wrote:
 >
 >  > Original poster: "K. C. Herrick" <kchdlh-at-juno-dot-com>
 >  >
 >  > All well & good, but...clicking further reveals "no posted
 > availability"
 >  > for any of them.  Vaporware?...
 >  >
 >  > Ken Herrick
 >  >
 >  > On Thu, 15 Jan 2004 19:00:21 -0700 "Tesla list"
 > <tesla-at-pupman-dot-com>
 >  > writes:
 >  >  > Original poster: David Sharpe <sccr4us-at-erols-dot-com>
 >  >  >
 >  >  > Attached is a URL to International Rectifer.  The parts
 > listed
 >  >  > have internal hyperfast body diodes; no more schottky + HS
 >  >  > antiparallel diode to disable typically slow body diode.
 >  >  >
 >  >  >   http://www.irf-dot-com/whats-new/nr030320.html
 >  >  >
 >  >  > Several AN show half and full bridge topologies using listed
 >  >  > parts with none of these extra parts.  Removal of parts are
 >  >  > the anti-thesis of "Murphy's Law", if the're not there, they
 >  >  > won't be a thorn in your as...
 >  >  >
 >  >  > Parts are typical <$2.00 -at- 10K, single part cost should be
 >  >  > less then $10.
 >  >  >
 >  >  > FWIW
 >  >  >
 >  >  > Regards
 >  >  > Dave Sharpe, TCBOR/HEAS
 >  >  > Chesterfield, VA. USA
 >  >  >
 >  >  >
 >  >  >
 >
 >
 >