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Navitas Announces Next Gen Half-Bridge Power ICs

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Half-bridge power ICs deliver MHz performance with over 60 percent reduction in components and circuit size

GaN specialist Navitas Semiconductor has announced its first GaNSense half-bridge power ICs. According to the company, these devices enable a new level of MHz switching frequencies while dramatically reducing the system cost and complexity compared to existing discrete solutions.

GaNSense half-bridge power ICs integrate two GaN FETs with drive, control, sensing, autonomous protection, and level-shift isolation, to create a fundamental power-stage building block for power electronics. This revolutionary single-package solution reduces component count and footprint by over 60 percent compared to existing discretes, which cuts system cost, size, weight, and complexity.

The integrated GaNSense technology enables high levels of autonomous protection for increased reliability and robustness, combined with loss-less current sensing for higher levels of efficiency and energy savings. Navitas says the high integration levels also eliminate circuit parasitics and delays, making MHz-frequency operation a reality for a broad range of AC-DC-power topologies including LLC resonant, asymmetric half-bridge (AHB), and active-clamp flyback (ACF). The GaNSense half-bridge ICs are also a good fit for totem-pole PFC, as well as motor-drive applications.

Gene Sheridan, CEO said. “Our initial GaNFast ICs enabled an increase from 50-60 kHz to 200-500 kHz, and now the GaNSense half-bridges elevate those benefits to the MHz range. The GaN revolution continues!”

The initial family of GaNSense Half-Bridge ICs includes the NV6247 which is rated at 650 V, 160 mOhms (dual), and the NV6245C, rated at 275 mOhms (dual), both in an industry-standard, low-profile, low-inductance, 6 x 8 mm PQFN package.

The NV6247 is immediately available in production with 16-week lead times, while the NV6245C is sampling to select customers and will be broadly available in production to all customers in Q4 2022. A wide range of package styles and power levels will become available in this GaNSense Half-Bridge IC family in the coming quarters.

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