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The EPCS4001 is a rad-hard CMOS ASIC, co-developed with The European Organization for Nuclear Research, known as CERN, tailored specifically for use with EPC’s GaN-based Rad Hard power stage the EPC7011L7 family. This two-component solution provides a robust and flexible point-of-load converter architecture that excels in extreme environments.
Key Features of the EPCS4001:
• Wide Input Voltage Range: 18 V to 50 V input, with an adjustable output centered at 12 V
• High Switching Frequency: Adjustable from 0.5 MHz to 3 MHz, enabling use of compact inductors from 200–500 nH.
• Integrated Bias Regulators: On-chip 12 V and 5 V linear regulators eliminate the need for external bias circuitry.
• Protection & Telemetry: Built-in under-voltage lockout (UVLO), over-temperature protection, and Power Good signal for fault monitoring.
• Radiation and Magnetic Tolerance: Operates reliably in environments with very high radiation. The controller has been designed for operation in a strong magnetic field in excess of 40,000 Gauss.
• Fully Compatible with EPC GaN Power Stages: Designed to pair with the EPC7011L7 family, enabling radiation-hardened power conversion in compact form factors.
EPCSC401 Reference Design – Turnkey Performance
To support rapid design-in, EPC Space has released the EPCSC401 reference design, a 48 V-to-12 V buck converter that demonstrates the full capabilities of the EPCS4001 and EPC7011L7 family in a compact layout. It features:
• Pre-optimized PCB layout for minimal loop inductance and maximum efficiency.
• Compatibility with both cored and coreless inductors, allowing designers to tailor magnetic components for application-specific needs, including high magnetic field environments.
• Verified thermal performance with conduction cooling and integrated heatsinking for space-like conditions.
“Our customers asked for a simplified path to integrate GaN-based, radiation-hardened DC-DC conversion into their systems, and the EPCS4001 with the EPCSC401 reference design delivers exactly that,” said Maurizio Salato, VP of Engineering at EPC Space.
Applications
• Spacecraft power systems
• High Energy Physics instrumentation
• Radiation-tolerant point-of-load converters
• Defense and aerospace systems requiring high efficiency and compact size
Availability
The EPCS4001 controller and EPCSC401 reference design are available now. Datasheets, user guides, and design files can be accessed through epc.space.
About EPC Space
EPC Space provides revolutionary high-reliability radiation-hardened enhancement-mode gallium nitride power management solutions for space and other harsh environments. Radiation hardened GaN-based power devices address critical spaceborne environments for applications such as power supplies, motor drives, ion thrusters, and more. eGaN is a registered trademark of Efficient Power Conversion Corporation, Inc.
Renee Yawger
Efficient Power Conversion Space
+1 908-619-9678
email us here
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