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EPC demo board for 12 to 48V GaN Boost Converter


500W DC-DC board demonstrates Renesas 80V two-phase synchronous boost controller with the latest generation of EPC eGaN FETs

EPC announces the availability of the EPC9166, a 500W DC-DC demo board that converts a 12V input to 48V output.

The demo board demonstrates the Renesas ISL81807 80 V two-phase synchronous boost controller with the latest generation EPC2218 eGaN FETs from EPC to achieve greater than 96.5 percent efficiency in a 12 V input to 48 V regulated output conversion with 500 kHz switching frequency.

The output voltage can be configured to 36 V, 48 V, and 60 V. The board can deliver 480 W power without a heatsink.

Regulated DC-DC boost converters are widely used in data centre, computing, and automotive applications, converting a nominal 12 V to a 48 V distribution bus among other output voltages. The main trend has been towards higher power density.

eGaN FETs are said to provide the fast switching, high efficiency and small size that can meet the stringent power density requirements of these leading-edge applications. EPC2218 is the smallest and highest efficiency 100 V FET in the market.

The ISL81807 is the industry’s first 80 V dual-output/two-phase (single output) synchronous buck controller with integrated GaN driver, supporting frequencies up to 2 MHz. The ISL81807 uses current mode control and generates two independent outputs or one output with two interleaved phases. It supports current sharing, synchronisation for paralleling more controllers/more phases, enhanced light load efficiency and low shutdown current. ISL81807 directly drives EPC GaN FETs, ensuring easy design, low component count and solution cost.

Alex Lidow, CEO of EPC commented: “The Renesas controller IC makes using GaN even easier. We are delighted to work with Renesas to combine the benefits of their advanced controllers with the performance of GaN to provide customers with a low component count solution that increases efficiency, increases power density, and reduces system cost.”

“The Renesas ISL81807 is designed to fully exploit the high performance of GaN FETs for high power density solutions” said Andrew Cowell, VP of the Mobility, Industrial and Infrastructure Power Division at Renesas. “ISL81807 reduces BOM cost for GaN solutions because it does not require an MCU, current sense op amp, external driver or bias power. It is also fully protected and integrates the GaN drivers. With the ISL81807, designing with GaN FETs is as simple as designing with silicon-based FETs.”

The EPC9166 demonstration board from EPC is priced $300.00 each and is available for immediate delivery from Digi-Key

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