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600V GaN family for applications in the 30 to 500 W power range

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By Nick Flaherty

Infineon Technologies has launched a series of 600V gallium nitride (GaN) integrated power stage (IPS) devices ranging from 30W to 500W.

The CoolGaN IPS family includes half-bridge and single-channel products, targeting low-to medium power applications such as chargers and adapters and switched-mode power supplies (SMPS).

The 600 V CoolGaN half-bridge IPS IGI60F1414A1L is aimed at compact and lightweight designs in the low-to-medium power range. The thermally enhanced 8×8 QFN-28 package combines two 140 mΩ / 600 V CoolGaN e-mode HEMT switches with dedicated galvanically isolated high- and low-side gate drivers from Infineon’s EiceDriver family.

The IGI60F1414A1L is easy to control due to the isolated gate driver with two digital PWM inputs. The integrated isolation function, the clean separation of digital and power ground and the reduced complexity of the PCB layout are crucial in achieving shorter development time, lower system bill-of-material and lower total cost. The gate driver’s input-to-output isolation is based on Infineon’s proven on-chip coreless transformer (CT) technology. This guarantees high speed and excellent robustness even for extremely fast switching transients with voltage slopes exceeding 150 V/ns.

The switching behaviour of IGI60F1414A1L can be easily adapted to the needs of different applications by means of a few passive gate path components. This allows slew rate optimization for example to reduce electromagnetic interference (EMI) efforts, steady-state gate current setting, and negative gate drive for robust operation in hard-switched applications.

The system-in-package integration and the highly accurate and stable propagation delay of the gate drivers means the IGI60F1414A1L enables the lowest possible system dead-times. This helps to maximize system efficiency, leading to the next level of power density up to 35 W/in³ for charger and adapter solutions. Flexible, easy and fast designs are also enabled for other applications, including LLC resonant topology and motor drives.

The IGI60F1414A1L is available in a thermally enhanced 8×8 QFN-28 package and can be ordered now.

www.infineon.com/coolgan-ips

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