GaN ePower Stage IC boosts power density and simplifies design

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Efficient Power Conversion (EPC) has introduced its latest ePower Stage IC that integrates a complete GaN half-bridge power stage capable of up to 35A at 1 MHz operation.

The IC offers a combination of higher performance and smaller solution size for high power density applications and the 100V, 35A integrated circuit has been designed for 48V DC-DC conversion used in high-density computing applications and in 48V BLDC motor drives for e-mobility, robotics, and drones.

The EPC23102 eGaN IC is also capable of switching speeds greater than 1 MHz.

Key features of the EPC23102 include integrated input logic interface, level shifting, bootstrap charging and gate drive buffer circuits controlling 6.6 mOhm RDS(on) high side and low side FETs configured as a half-bridge power stage.

The IC features a thermally enhanced QFN package with a footprint of just 3.5 mm x 5 mm, offering a small solution size for the highest power density applications.

When operated in a 48V to 12V buck converter, the EPC23102 is able to deliver greater than 96% peak efficiency at 1 MHz switching frequency and around 8 – 17 A of continuous load current with a rated current of 35A.

“The ePower family of products makes it easy for designers to take advantage of the significant performance improvements made possible with GaN technology,” said Alex Lidow, CEO and co-founder of EPC. “Integrated devices are easier to design, easier to layout, easier to assemble, save space on the PCB, and increase efficiency. Designers can use these devices to make lighter weight and more precise BLDC motor drives, higher efficiency 48 V input DC-DC converters, higher fidelity class-d audio systems, and other industrial and consumer applications.”

The EPC90147 development board is a 100V maximum device voltage, 35 A maximum output current, half bridge featuring the EPC23102 ePower Stage IC.

The purpose of this board is to simplify the evaluation process of the EPC23102. This 2” x 2” (50.8 mm x 50.8 mm) board is designed for optimal switching performance and contains all critical components for easy evaluation.