EPC7018 rad-hard GaN FET has lowest RDS(on) says EPC
Claimed to offer the lowest on resistance in the market today, the EPC7018 100V GaN transistor has been added to the Efficient Power Conversion (EPC) expanding the company’s family of radiation-hardened (rad-hard) GaN products for power conversion in spaceborne and other high-reliability environments.
It has, claimed EPC, the lowest on-resistance of any 100V rad-hard transistor currently available. The 100V, 3.9mΩ, 345A pulsed, rad-hard GaN FET is supplied in a small 13.9mm2 footprint. Total dose radiation rating is greater than 1Mrad and SEE (single event effect) immunity for LET (linear energy transfer) of 85MeV/(mg/cm2). The EPC7018 joins the EPC7014, EPC7007 and EPC7019 in the rad-hard portfolio. All are offered in a chip-scale package, the same as the commercial eGaN FET and IC family. Packaged versions will be available from EPC Space.
The company reported that power devices based on GaN significantly outperform silicon-based devices, with higher breakdown strength, lower gate charge, lower switching losses, better thermal conductivity and very low on-resistance. They also enable higher switching frequencies resulting in higher power densities, higher efficiencies, and more compact and lighter weight circuitry for critical spaceborne missions, said the company. GaN devices also support higher total radiation levels and SEE LET levels than silicon solutions, added EPC.
The EPC7018 can be used in a variety of applications, such as DC/DC power, motor drives, lidar, deep probes and ion thrusters for space applications, satellites, and avionics.
The EPC7018 is available for engineering sampling and will be fully qualified for volume shipments in December 2022.
EPC specialises in enhancement mode gallium nitride (eGaN) -based power management. eGaN FETs and ICs provide performance many times greater than the best silicon power MOSFETs in applications such as DC/DC converters, remote sensing technology (lidar), motor drives for e-mobility, robotics and drones as well as inexpensive satellites.
