Infineon ICE2HS01G: High-Performance Resonant Mode Controller for SMPS

The continuous evolution of switch-mode power supplies (SMPS) demands controllers that offer greater efficiency, higher power density, and enhanced reliability. Addressing these needs, the Infineon ICE2HS01G stands out as a high-performance resonant mode controller engineered specifically for advanced power supply designs. This IC is a cornerstone for developers aiming to build efficient and compact power converters for applications like server PSUs, telecom systems, and high-end industrial equipment.

At its core, the ICE2HS01G is designed to manage half-bridge (LLC) resonant converter topologies, which are renowned for their ability to achieve high efficiency by minimizing switching losses. This is accomplished by ensuring that the power MOSFETs switch at zero voltage (ZVS), a critical feature that significantly reduces stress on the components and boosts overall system efficiency. The controller operates at frequencies up to 500 kHz, enabling the use of smaller magnetics and capacitors to achieve higher power density.

A key strength of the ICE2HS01G is its integrated high-voltage startup circuit. This feature drastically reduces standby power consumption by eliminating the need for a separate startup resistor, a common source of energy loss in offline power supplies. Furthermore, the controller offers comprehensive protection features that safeguard the system under fault conditions. These include over-current protection (OCP), over-voltage protection (OVP), and an open-loop protection mechanism. The inclusion of an adjustable dead time control allows designers to fine-tune the switching parameters to optimize performance for their specific resonant network.

The device also simplifies the design process with its precise frequency control and soft-start capability, which prevents inrush currents during startup, enhancing the reliability and longevity of the power supply. Its robust design ensures stable operation across a wide range of input voltages and load conditions, making it a versatile choice for demanding applications.

ICGOODFIND: The Infineon ICE2HS01G is a top-tier resonant mode controller that empowers engineers to design next-generation SMPS with exceptional efficiency, compact size, and robust reliability, making it an exemplary solution for modern high-performance power systems.

Keywords: Resonant Converter, High Efficiency, Half-Bridge Controller, Integrated Startup, Over-Current Protection