Industrial Electronics

Vishay Intertechnology 80 V MOSFET offers best in class on-resistance times gate charge FOM to increase efficiency

19 February 2020

Vishay Intertechnology Inc. has introduced a new 80 V TrenchFET Gen IV n-channel power MOSFET in the 6.15 mm by 5.15 mm PowerPAK SO-8 single package. Designed to save energy by increasing the efficiency of power conversion topologies and switching circuitry, the Vishay Siliconix SiR680ADP offers best in class on-resistance times gate charge — a key figure of merit (FOM) for MOSFETs used in power conversion applications — of 129 mΩ*nC.

The device released today combines on-resistance down to 2.35 mΩ typical at 10 V with ultra low gate charge of 55 nC and COSS of 614 pF. These specifications are fine-tuned to reduce the power losses from switching, channel conduction, and diode conduction, resulting in increased efficiency. The MOSFET’s on-resistance times Source: Vishay Intertechnology Inc.Source: Vishay Intertechnology Inc.gate charge FOM is 12.2% lower than the closest competing product and 22.5% lower than the previous-generation device, making it the most efficient solution available for typical 48 V input to 12 V output DC/DC converters.

The SiR680ADP will serve as a building block in a wide variety of DC/DC and AC/DC conversion applications such as synchronous rectification, primary-side switching, buck-boost converters, resonant tank switching converters, and the OR-ing function in systems such as telecom and data center server power supplies; solar micro-inverters; motor drive control in power tools and industrial equipment; and battery switching in battery management modules.

The MOSFET is 100% RG- and UIS-tested, RoHS-compliant and halogen-free.

Samples and production quantities of the SiR680ADP are available now, with lead times of 12 weeks. Pricing for U.S. delivery in 10,000-piece quantities is approximately $0.75 per piece.

To contact the author of this article, email engineering360editors@globalspec.com


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