In recent years, power supplies for lighting and pump motors have needed to be reduced in size as the devices became more sophisticated, which has spurred demand for compact MOSFETs, which are essential for switching operation.
However, it has generally been difficult to reduce the size of superconnect MOSFETs while maintaining an optimal balance between high breakdown voltage and low conduction resistance. In response, after reviewing the form factor of the assembled chip, ROHM was able to develop five models in the SOT-223-3 package (6.50 mm × 7.00 mm × 1.66 mm), providing a smaller, lower-profile form factor without compromising the performance of conventional products.
Compared to the conventional TO-252 package (6.60 mm × 10.00 mm × 2.30 mm), ROHM's new products reduce the area and thickness by 31% and 27%, respectively, thus contributing to the creation of smaller, lower-profile applications. At the same time, the same circuit pattern (footprint) as the TO-252 package can be used, allowing mounting on existing printed circuit boards without modification.
Three of the models, each offering distinctive features, are optimized for compact power supplies. The R6004END4, characterized by its low noise level, is suitable for applications where noise is a critical factor; while the R6003KND4 and R6006KND4, capable of high-speed switching, are ideal for assemblies requiring low-loss, high-efficiency operation. The R6002JND4 and R6003JND4 utilize patented PrestoMOS technology to achieve significantly lower switching losses by accelerating reverse recovery time (trr), making them well-suited for motor-driven devices.
Supporting materials, such as application notes, technical documents, and SPICE simulation models for each product, are available free of charge on the ROHM website to facilitate a rapid introduction to the market.
In the future, ROHM will continue to expand its range of superconnect MOSFETs in different packages and with even lower on-resistances that help address societal concerns, such as environmental protection, by reducing energy consumption in a wide variety of applications.
Product range
for compact power supplies
For engines
Application examples
R6004END4 / R6003KND4 / R6006KND4: lighting, air conditioning, refrigerators, etc.
R6002JND4 / R6003JND4: motors for pumps, fans, photocopiers, etc.
PrestoMOS:
“Presto” is an Italian musical term meaning “very fast.” PrestoMOS is ROHM’s original power MOSFET that maintains the high non-disruptive voltage and low on-resistance of super-connect MOSFETs while accelerating the reverse recovery time of the built-in diode. By reducing switching losses, it is ideal for a wider range of inverter circuit applications, such as air conditioners and refrigerators.
