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Energy-efficient alternative to standard MOSFETs introduced

10 May 2012

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Infineon Technologies has announced the introduction of the 500V CoolMOS CE, the company's new series of CoolMOS products. According to Infineon, the new devices represent an attractive alternative to standard MOSFETs. They can be used to design power supplies in price-sensitive applications such as consumer electronics, PC Silverboxes and Lighting SMPS (Switched-Mode Power Supply). Infineon's 500V CoolMOS CE combines all benefits of modern Superjunction MOSFETs: low area specific on-state resistance, reduced switching losses and high body diode ruggedness.

"The new 500V portfolio enables our customers to reach higher energy-efficiency levels while at the same time offering a very attractive price-performance ratio," So touts Jan-Willem Reynaerts, product segment head, High Voltage Power Conversion at Infineon Technologies.

The company explains that CoolMOS CE uses Superjunction technology to provide improved efficiency, especially at light load conditions. Thus, the new series may be deemed to truly represent an energy-efficient and cost-attractive alternative to standard MOSFETs in its targeted applications. To be specific, the low area specific on-state resistance (R DS(on)*A) enables lower conduction losses, reduces energy stored in output capacitance (E oss) and minimizes switching losses. Lower gate charge (Q g) improves light load efficiency while not compromising full load efficiency. This presumably provides lower system cost and a reduced cost of ownership. High body diode ruggedness and reduced reverse recovery charge (Q rr) may make it the perfect solution for soft-switching applications. The new devices are also easy to design in and use, given their controllable switching behavior.

Samples of 500V CoolMOS CE in 280mOhm and 500mOhm R ds(on) in TO-220 package are now available, same as devices in 280mOhm, 500mOhm and 950mOhm R ds(on) in DPAK and TO-220 FullPAK packages. First OEM ramp-ups are expected later in May 2012.

Engineering sample is $1.12 per piece (IPP50R280CE; 500V, 280mOhm in TO-220).

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