Super-junction MOSFETs suit TV, LED lighting, and fast chargers

MagnaChip Semiconductor Corp. has added eight new 700 V and 800 V series high-voltage super-junction (SJ MOSFETs) to its portfolio of high-voltage products. These devices offer performance and efficiency features that target TV, LED lighting, and fast charger applications.

MagnaChip’s next generation of high-voltage super-junction MOSFETs joins its flagship 600-V SJ MOSFETs, broadening the company’s expansion into consumer and industrial market segments. With the 700-V product offering, the company expands its reach into the TV market in China, while the 800-V devices target indoor LED lighting, fast chargers, and other industrial applications with high or unstable input voltages.

The 800-V SJ MOSFETs feature an embedded zener diode between the gate and source in order to avoid damage from an external surge or electrostatic discharge (ESD), which helps to improve robustness and reliability, said MagnaChip. In addition, the total gate charge is reduced by 30 percent, compared to previous versions, which improves power efficiency and reduces switching loss.

Earlier this year, Magnachip entered the wireless earphone market with a new MOSFET that prevents the battery from overcharging. The MOSFET controls excessive current flowing into wireless earphones while recharging the battery to protect the earphones from damage. It also provides a stable charging environment by blocking ESD as high as 2 kV.