Infineon promotes 300V division with OptiMOS FETS for hard switching

June 03, 2015 // By Graham Prophet
Infineon Technologies has added to its medium voltage MOSFETs with OptiMOS 300V, for energy efficient solutions in applications such as telecom systems, uninterruptible power supplies (UPS), motor control, industrial power supplies and DC/AC inverters.

The company claims that in hard switching applications such as AC/DC converters OptiMOS 300V cuts energy losses by 50%. This allows for higher switching frequencies and, consequently, passive component and solution size reduction. OptiMOS 300 V can provide voltage spike headroom for better reliability, safety and ease of design in a 60V telecom rectifier. The number of stages required in cascaded high voltage switch mode power supplies can also be reduced. A 110 VAC UPS can now be realised with OptiMOS 300 V.

“With 300 V blocking capability, Infineon extends the benchmark OptiMOS technology into a, so far, non-mainstream voltage class to support evolving applications such as multilevel converters,” says Richard Kuncic, Vice President & General Manager Business Line DC/DC at Infineon Technologies AG, adding, “...we expect this voltage class to become a new standard in the power MOSFET market.”

Incorporating fast diode technology, OptiMOS 300 V offers 70% lower reverse recovery charge Qrr compared to the next best alternative device. This characteristic leads to smooth body diode behaviour and minimises voltage overshoot. OptiMOS 300 V in the TO-220 package provides the industry’s best RDS(on) with more than 58% lower Figure of Merit (FOM: RDS(on) x QG) when compared to other available products.

OptiMOS 300 V is available in two packages: D 2PAK with RDS(on) of 40.7 mΩ and TO-220 with RDS(on) of 41 mΩ.