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ST intros 650V super-junction MOSFET to boost power density

Posted: 02 Dec 2014 ?? ?Print Version ?Bookmark and Share

Keywords:STMicroelectronics? MOSFET? power supplies? solar micro-inverter?

STMicroelectronics has unleashed its latest super-junction power MOSFETs aimed to deliver efficient power supplies for home electronics, low-energy lighting and solar micro-inverters. According to the company, the MDmesh M2-series devices claim to provide greater robustness and the latest package options in order to boost power density.

The MOSFETs, according to ST, achieve even lower on-resistance (RDS(ON)) than their predecessors, combined with lower gate charge (QGD) and input/output capacitances (Ciss/Coss). Together, these advances further reduce energy loss and heat dissipation, and allow faster and more efficient switching.

At the same time, the increased breakdown voltage of 650V, compared to 600V typical of other devices in the market, ensures a higher safety margin to enable more robust and reliable systems.

The series also adds the option of a PowerFLAT 5x6 HV high-voltage surface-mount package offering greater thermal performance and current-handling capability within a small footprint and low profile. Scheduled for availability in 1Q15, the PowerFLAT 5x6 HV option effectively increases power density, enabling next-generation designs in smaller enclosures to deliver high output power without compromising reliability, ST stated.

MDmesh M2-series

The MDmesh M2 MOSFETs target power adapters for equipment such as laptops, printers and game consoles, as well as the internal power supplies of TVs and music systems. Drivers for 3-25W single-string LED light engines, as well as multi-string light engines at higher power ratings, can also benefit from the increased thermal efficiency and performance. The PowerFLAT 5x6 HV option is a strong choice for solar micro-inverters, bringing the MDmesh M2 efficiency advantages to compact domestic and commercial modules.

In all, 22 MDmesh M2 650V MOSFETs are available, with maximum current ranging from 4-11A and RDS(ON) down to 0.36?. Prices start from $0.92 for the STD6N65M2 in D2PAK package for orders of 1,000 units.

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