EPC doubles the power density of GaN power FETs

EPC has launched the first device in its new generation of eGaN power FETs and ICs that double the power density compared to the previous generation of products. The 80-V EPC2619 GaN power FETs target a range of motor drive applications. These include 28 V – 48 V conversion for eBikes, eScooters and power tools; high-density DC/DC converters; solar optimizers; and synchronous rectification converting 12 V – 20 V for chargers, adaptors, and TV power supplies.

(Source: EPC)

The EPC2619 eGaN power transistor delivers an RDS(on) of 4 mOhms in a 1.5 × 2.5 mm footprint. The maximum RDS(on) x area of the device is 15 mΩ*mm2, which is five times smaller than 80-V silicon MOSFETs, said the company.

“The typical RDS(on) x QGD, which is indicative of power losses in hard-switching applications, is 10 times better than 80-V silicon MOSFETs,” said EPC, which “enables switching frequencies that are 10 times higher than silicon MOSFETs and without an efficiency penalty.” This translates into higher power density, which makes the EPC2619 suited for high frequency hard-switching 24 V – 48 V applications, such as used in buck, buck-boost, and boost converters, added the company.

In addition, the typical RDS(on) x QOSS, indicative of power losses in soft-switching applications, is 87 mOhm*nC, two times better than 80-V silicon MOSFETs, said EPC. This makes the EPC2619 suited for soft-switching applications, such as the primary rectification full bridge for LLC-based DCX DC-DC converters.

EPC also offers the EPC90153 development board, which is a half bridge design with 80-V maximum device voltage and 30-A maximum output current. The 2” × 2” (50.8 × 50.8 mm) board featuring the EPC2619 is designed for optimal switching performance and contains all critical components for evaluation.

The EPC2619 is priced at $1.90 each in quantities of 2,500 and the EPC90153 development board is priced at $200 each.

EPC is exhibiting at electronica, Nov. 15-18, Munich, Germany. Alex Lidow, CEO and co-founder, Efficient Power Conversion (EPC), will be a panelist at the Power Electronics Forum, sponsored by AspenCore Media and Power Electronics News, November 16.