Power Integrations introduces landmark 1250V gallium nitride switching IC

     Power Integrations, a leading company in the field of energy-efficient power conversion for high-voltage integrated circuits, has announced the world's highest rated single-tube gallium nitride (GaN) power supply IC. The IC uses 1250V PowiGaN™ switching technology. The InnoSwitch™3-EP 1250V IC is the latest addition to Power Integrations' InnoSwitch line of constant voltage/constant current quasi-resonant off-line flyback switching ics. It features synchronous rectifier and FluxLink™ safe isolated feedback, and offers a wide range of switching options, including 725V silicon switches, 1700V silicon carbide switches, and other derivative PowiGaN switches with 750V, 900V, and now 1250V voltages.

     Power Integrations' proprietary 1250V PowiGaN technology delivers less than one-third of the switching losses of an equivalent silicon device at the same voltage. This enables a power conversion efficiency of up to 93%, which in turn contributes to a highly compact flyback power supply design. No heat sink required at up to 85W output power.

     Radu Barsan, Vice President of Technology at Power Integrations, said: "Power Integrations continues to advance the development and commercial application of high-pressure gallium nitride technology to the highest level in the industry. This eliminates the use of even the industry's best high-voltage silicon MOSFETs. We were the first to ship gallium nitride-based power IC products to market in high volume in 2019, and earlier this year launched the Gallium nitride-based 900V InnoSwitch. We continue to develop gallium nitride technologies at higher voltages, such as the new 1250V product. We are committed to extending the efficiency benefits of gallium nitride to a wider range of applications, including those that currently use silicon carbide technology."

     When using the new InnoSwitch3-EP 1250V IC, designers can be very confident that their design can operate at a peak operating voltage of 1000V, because the absolute maximum of 1250V can meet the industry derating standard of 80%. This provides a huge margin for industrial applications, especially those in challenging grid environments. Because in this environment, durability is an important defense against grid fluctuations, surges, and other power disturbances.