Nexperia Application-specific MOSFETs provide enhanced dynamic current sharing for high power industrial applications

Nexperia today introduced the latest additions to its ever-expanding portfolio of application-specific MOSFETs (ASFETs), whose features have been tuned to meet the exacting requirements of specific end applications. The 80 V PSMN1R9-80SSJ and 100 V PSMN2R3-100SSJ switches have been designed to provide enhanced dynamic current sharing in high-power 48 V applications that require the use of several closely matched MOSFETs connected in parallel. These include motor drive in electric vehicles like forklifts, e-scooters and mobility devices, as well as high-power industrial motors.

When connecting two or more MOSFETs in parallel to support high current capability and reduce conduction losses, it can be challenging for designers to ensure the load current is shared equally between individual devices during turn-on and turn-off. MOSFETs with the lowest V_GS(th) will turn on first, causing higher thermal stress resulting in accelerated failure. In order to provide a sufficient safety margin, engineers often over-specify the MOSFETs used in their end applications. This expensive and time-consuming approach often requires additional testing but still cannot provide guarantees on how devices will behave at higher load currents (tens of Amps). An alternative approach is to request tightly matched devices from a supplier, but this can further raise the cost of an end application.

The features of Nexperia’s PSMN1R9-80SSJ and PSMN2R3-100SSJ ASFETs eliminate the need for designers to adopt either of these approaches by providing enhanced dynamic current sharing. These switches offer a 50% lower current delta between parallel devices (for currents up to 50 A per device) at turn-on/off and also offer a V_GS(th) window that is up to 50% lower (0.6 V min-to-max). This benefit, combined with the low R_DS(on) of 1.9 mΩ or 2.3 mΩ helps to provide high efficiency in power switching applications.

The new ASFET devices are available in the rugged, space-efficient 8 mm x 8 mm copper-clip LFPAK88 package, delivering operating temperature ranging from -55 °C to +175 °C.

To learn more about Nexperia’s ASFETs, visit: https://www.nexperia.com/mosfets/asfets-current-sharing

About Nexperia

Headquartered in the Netherlands, Nexperia is a global semiconductor company with a rich European history and over 12,500 employees across Europe, Asia, and the United States. As a leading expert in the development and production of essential semiconductors, Nexperia’s components enable the basic functionality of virtually every commercial electronic design in the world – from automotive and industrial to mobile and consumer applications.
The company serves a global customer base, shipping more than 110 billion products annually. These products are recognized as benchmarks in efficiency – in process, size, power, and performance. Nexperia's commitment to innovation, efficiency, sustainability, and stringent industry requirements is evident in its extensive IP portfolio, its expanding product range, and its certification to IATF 16949, ISO 9001, ISO 14001 and ISO 45001 standards.

For press information, please contact:

Nexperia

Anne Proch

Tel: +49 160 916 884 18

Email: anne.proch@nexperia.com

Publitek

Lucy Sorton

Tel: +44 07966 301949

E-mail: lucy.sorton@publitek.com