DTMOS IV-H MOSFETs now offered in four pin TO-247 package

13th May 2015
Posted By : Nat Bowers
DTMOS IV-H MOSFETs now offered in four pin TO-247 package

Targeting PFC for high power smart power stages, Toshiba Electronics Europe has introduced a four pin TO-247 MOSFET package. In conventional three pin TO-247 packages, parasitic induction at the source pin causes increased losses with increasing switching frequency. The TO-247 4L package is equipped with high speed DTMOS-H chips with low QGD to optimise switching behaviour.

With the TO-247 4L package, an additional source signal terminal is separated as a ‘Kelvin source’. By using this source pin, di/dt and switching efficiency can be increased. Compared to a three pin solution, the switching loss will be reduced by about 15%.

The DTMOS IV-H chips are made using Toshiba’s Deep Trench technology that delivers lower RDS(ON) at higher temperatures, compared to conventional super junction MOSFETs. It also offers reduced turn-off switching losses than previous technology. The combination of smaller increases in RDS(ON) at high temperatures and reduced switching losses provides higher efficiency for power supplies and assists designers in minimising system size.

The four pin TO-247 packaging style will initially be seen on four members of the DTMOS IV-H range, the TK25Z60X, TK31Z60X, TK39Z60X and TK62Z60X, all of which feature VDSS of 600V with RDS(ON) values of 40-125mΩ.

Samples of the packaging are available now and will enter mass production later this year.


You must be logged in to comment

Write a comment

No comments




Sign up to view our publications

Sign up

Sign up to view our downloads

Sign up

SINDEX 2018
28th August 2018
Switzerland BERNEXPO-Site, Bern
European Microwave Week 2018
23rd September 2018
Spain Ifema Feria De Madrid
Connected World Summit 2018
25th September 2018
United Kingdom Printworks, London
IoT Solutions World Congress 2018
16th October 2018
Spain Barcelona
Engineering Design Show 2018
17th October 2018
United Kingdom Ricoh Arena, Coventry