As electronic devices and industrial equipment become more powerful, the demand for high-efficiency power conversion continues to rise. Traditional power supplies often require bulky cooling solutions and large enclosures, making them unsuitable for compact or sealed applications. Additionally, dust, moisture, and environmental hazards can compromise the reliability of exposed power systems. Addressing these challenges, Power Integrations has introduced the latest addition to its HiperLCS-2 chipset, doubling power output to an impressive 1650 W of continuous power. Designed for high-performance industrial power supplies and sealed chargers used in e-scooters and outdoor power tools, the new LLC switcher IC offers over 98 percent efficiency while significantly reducing system size and complexity.
A Leap in Power Conversion Efficiency
By incorporating advanced half-bridge switch technology and a novel POWeDIP package, the new IC increases continuous power capabilities while permitting brief peak loads of up to 2.5 kW. This breakthrough enables manufacturers to design compact, fully sealed power solutions that eliminate the need for air vents or cooling fans—enhancing reliability and protecting against environmental hazards such as dust, moisture, and debris.
“High power and high efficiency are non-negotiable requirements for fully sealed chargers and adapters,” said Zeeshan Kabeer, product marketing manager at Power Integrations. “For professionals relying on power tools or personal transportation, charger failure due to dust, moisture, or mechanical damage is unacceptable. Our new 1650 W HiperLCS-2 device enables the development of robust, high-efficiency, sealed chargers for these mission-critical applications.”
Advanced Design Reducing Complexity
The HiperLCS-2 chipset simplifies the design of half-bridge LLC resonant power converters by reducing component count and board area by 30 to 60 percent for applications above 50 W. The thermally efficient POWeDIP package integrates an electrically insulating, thermally conductive ceramic pad that easily attaches to any flat, heat-sinking surface, offering exceptional thermal performance with a rating of less than 1 degree Celsius per watt.
The chipset includes two key components:
- HiperLCS2-HB (Primary Side): Features 600 V FREDFETs in a half-bridge configuration, along with self-bias and start-up control to eliminate the need for an external bias supply, simplifying system design.
- HiperLCS2-SR (Secondary Side): Incorporates a synchronous rectification (SR) master controller to optimize output rectification efficiency. It also features Power Integrations’ FluxLink isolator, which provides high-speed, robust feedback without the need for an optocoupler, improving reliability and system response time.
The IC further supports multi-mode burst operation, ensuring superior efficiency at light and no-load conditions while eliminating audible noise and reducing output ripple. Comprehensive fault protection mechanisms safeguard against potential system failures, further enhancing reliability.
Enabling Next-Generation Power Systems
With its ability to deliver high power in a compact footprint, the HiperLCS-2 chipset is an ideal choice for demanding applications that require efficient, sealed power conversion. Its integration and thermal management capabilities make it a game-changer for industrial power supplies, e-scooter chargers, and outdoor power tool applications.
Engineers looking to explore its potential can access reference designs, including:
- A 1650 W DC-DC LLC half-bridge resonant converter (DER-1060)
- A 720 W DC-DC LLC half-bridge resonant converter (DER-978)
- A 720 W PFC LLC PSU with constant voltage and constant current mode control (DER-984)
Availability and Pricing
The HiperLCS-2 POWeDIP ICs are available now, with pricing starting at $5.39 per unit for orders of 10,000. Engineers and developers can obtain samples and reference designs through Power Integrations’ authorized distributors, including DigiKey, Newark, Mouser, and RS Components.
As power demands continue to grow, the HiperLCS-2 chipset stands as a powerful solution, redefining efficiency and reliability in modern power electronics.
