Dual MOSFETs use precision process for low on resistance

Dual MOSFETs for driving motors in base stations (cooling fans) and industrial applications such as factory automation equipment, including robots, requiring 24V input are available from Rohm Semiconductor.

MOSFETs are increasingly required to ensure sufficient margin against voltage fluctuations by providing 40V and 60V withstand voltages to support 24V input required for motors used in industrial equipment and base stations. They are expected to deliver higher speed switching with lower on resistance to improve the efficiency and miniaturisation of motors.

Rohm’s sixth generation 40V/60V MOSFETs use precision processes for the Nch MOSFETs. The QH8Mx5/SH8Mx5 series has dual-MOSFET products (Nch+Pch) featuring ±40V/±60V withstand voltages. According to Rohm, this combination results in dual Nch+Pch MOSFETs that deliver the ±40V/±60V withstand voltage required for 24V input. The company has also developed the +40V/+60V QH8Kxx/SH8Kxx (Nch+Nch) series to support a wider range of needs. There are 12 models in total, made up of Nch+Pch and Nch+Nch devices.

The QH8Mx5/SH8Mx5 series achieves on resistance that is 61 per cent lower than the Pch MOSFETs in dual MOSFETs products in the ±40V class. This contributes to significantly lower power consumption in a variety of applications. Integrating two devices into a single package reduces mounting area and decreases the workload required for component selection (combining Nch and Pch), reports Rohm.

Rohm Semiconductor develops and manufactures a wide product range from SiC diodes and MOSFETs, analogue ICs such as gate drivers and power management ICs to power transistors and diodes to passive components.

The company has manufacturing plants in Japan, Korea, Malaysia, Thailand, the Philippines, and China. Lapis Technology (former OKI Semiconductor), SiCrystal GmbH and Kionix are companies of the Rohm Semiconductor Group.

Rohm Semiconductor Europe has its head office near Dusseldorf serving the EMEA region (Europe, Middle East and Africa).


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