New P-channel mosfets offer withstand voltages of -40V/-60V

From Rohm comes a 24-model line-up of -40V/-60V withstand voltage P-channel mosfets available in single and dual configurations for industrial and consumer applications, such as factory automation, robotics and air conditioning systems.

Mosfets are expected to provide low ON resistance as well as high withstand voltages. There are two types – N-channel and P-channel. Although N-channel types generally feature higher efficiency when used in the high side, a gate voltage higher than the input voltage is needed, complicating circuit configuration. P-channel mosfets can be driven with a gate voltage lower than the input voltage, helping to simplify circuit configuration while reducing design load.

Against this backdrop, Rohm developed low ON resistance -40V/-60V P-channel mosfets compatible with 24V input, using advanced 5th generation refined process. Rohm states that these new products leverage refined process technology to achieve the lowest ON resistance per unit area in their class.

This translates to 62 per cent lower ON resistance versus conventional products for -40V new products and 52 per cent for the -60V new products.
At the same time, quality is improved by optimising the device structure and adopting a new design that mitigates electric field concentration.

As a result, both high reliability and low ON resistance, which are typically in a trade-off relationship, are achieved. These solutions contribute to stable long-term operation in industrial equipment demanding exceptional quality.
Rohm continues to develop a variety of packages for a range of applications, including products optimised for the automotive sector. In addition to these 5th gen P-channel mosfets and by way of strengthening its line-up for 5G base stations and data centre servers, where there is growing demand, the company is developing higher efficiency N-channel mosfets. These products contribute to reducing application design load while increasing higher efficiency and reliability, says Rohm.

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