GaN power with autonomous EMI control and loss-less sensing

Navitas Semiconductor has launched a highly integrated gallium nitride power transistor in a custom package for consumer applications.

The Navitas GaNSlim integrates drive, control, and protection, with integrated EMI control and loss-less current sensing in a high thermal performance proprietary DPAK-4L package. With a low startup current below 10 µA, the GaNSlim devices are compatible with industry-standard SOT23-6 controllers and eliminate HV startup.

GaNSlim uses a patented, 4-pin, high-thermal-performance, low-profile, low-inductance, DPAK package. This package enables 7 °C lower temperature operation versus conventional alternatives, supporting high-power-density designs with ratings up to 500 W. Target applications include chargers for mobile devices and laptops, TV power supplies and lighting.

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Integrated features such as loss-less current sensing eliminate external current sensing resistors and optimize system efficiency and reliability. Over-temperature protection ensures system robustness and auto sleep-mode increases light and no-load efficiency. Autonomous turn-on/off slew rate control maximizes efficiency and power density while reducing external component count, system cost and EMI.

Devices in the NV614x GaNSlim family are rated at 700 V with RDS(ON) ratings from 120 mΩ to 330 mΩ and are available in versions for both isolated and non-isolated topologies.

“Our GaN focus is on integrated devices that enable high-efficiency, high-performance power conversion with the simplest designs and the shortest possible time-to-market,” says Reyn Zhan, Sr. Manager of Technical Marketing.

“Our GaNSlim portfolio continues to grow the customer pipeline with over 50 new projects already identified. GaNSlim increases our GaN addressable market by enabling lower system costs compared to silicon designs for many applications, targeting applications under 500 W across mobile, consumer and home appliance.”

Demonstration boards for QR flyback, single-stage PFC, boost PFC plus QR flyback and TV power supply designs allow for rapid evaluation and selection of the optimum device for a given application.