ROHM’s New Class-Leading Low ON Resistance Nch MOSFETs: Delivering High Efficiency Operation in a Variety of Applications
ROHM has developed Nch MOSFETs (40V/60V/80V/100V/150V) RS6xxxxBx / RH6xxxxBx series, 13 part numbers, suitable for applications operating on 24V/36V/48V power supplies such as base stations, servers, and motors for industrial and consumer equipment.
In recent years, worldwide power consumption has been on the rise – driving the need for industrial equipment such as servers and base stations along with various motors to become more efficient. In a number of these applications that utilize medium voltage MOSFETs, used in a variety of circuits, manufacturers are demanding even lower power losses. However, general MOSFETs are characterized by two main parameters leading to power losses: ON resistance (RDS(on)), which is inversely proportional to chip size, and Gate-drain charge (Qgd) that increases proportionally with chip size, making it challenging to achieve both. ROHM has improved the trade-off between the two by adopting copper clip connections and improving the gate structure.
The new MOSFETs achieve an industry-leading RDS(on) of 2.1mΩ – approx. 50% lower than conventional – by increasing device performance and adopting the HSOP8/HSMT8 package featuring low-resistance copper clip connections. What’s more, improving the element gate structure reduces Qgd, which is generally in a trade-off relationship with RDS(on), by approx. 40% vs conventional products (comparing typical values for RDS(on) and Qgd for 60V HSOP8 package products). These improvements reduce both switching and conduction losses, greatly contributing to higher application efficiency. As an example, when comparing the efficiency of a power supply evaluation board for industrial equipment, ROHM’s new products achieve an industry-leading efficiency of approx. 95% (peak) in the output current range during steady-state operation.
Going forward, ROHM will continue to develop MOSFETs with even lower RDS(on) that reduce power consumption in a variety of applications, contributing to solving social issues such as environmental protection through energy conservation.
Product Lineup
Application Examples
Power supplies for servers and communication base stations
Motors for industrial and consumer products
Also suitable for a variety of power supply circuits and motor-equipped devices
- 【Datasheet】RS6L090BG Nch 60V 90A Power MOSFET Datasheet
- 【Datasheet】RH6R025BH Nch 150V 25A Power MOSFET Datasheet
- 【Datasheet】RS6R035BH Nch 150V 35A Power MOSFET Datasheet
- 【Datasheet】RS6G100BG Nch 40V 100A Power MOSFET Datasheet
- 【Datasheet】RS6R060BH Nch 150V 60A Power MOSFET Datasheet
- 【Datasheet】RS6P060BH Nch 100V 60A Power MOSFET Datasheet
- 【Datasheet】RH6P040BH Nch 100V 40A Power MOSFET Datasheet
- 【Datasheet】RS6L120BG Nch 60V 150A Power MOSFET Datasheet
- 【Datasheet】RS6L120BG Nch 60V 150A Power MOSFET Datasheet
- 【Datasheet】RS6G120BG Nch 40V 210A Power MOSFET Datasheet
- 【Datasheet】RH6G040BG Nch 40V 95A Power MOSFET Datasheet
- 【Datasheet】RS6P100BH Nch 100V 100A Power MOSFET Datasheet
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