LYTSwitch6 LED Drivers Use PowiGaN Technology to Deliver Increased Power Density and EfficiencySeptember 04, 2019 by EE Power Editorial
This article highlights Power Integrations new high-power-density members of its LYTSwitch™-6 family of safety-isolated LED-driver ICs for smart-lighting.
Power Integrations, the leader in high-efficiency, high-reliability LED-driver ICs, today announced new high-power-density members of its LYTSwitch™-6 family of safety-isolated LED-driver ICs for smart lighting applications. The new ICs with PowiGaN™ technology enable designs that deliver up to 110 W with 94% conversion efficiency using a simple, flexible flyback topology.
The high efficiency of the new LYTSwitch-6 ICs eliminates the need for heatsinks – greatly reducing ballast size, weight and cooling airflow requirements. The 750 V PowiGaN primary switches provide very low RDS(ON) and reduced switching losses. This improvement, combined with existing LYTSwitch-6 features, increases power conversion efficiency by up to 3% compared to conventional solutions – reducing wasted heat by more than one-third.
LYTSwitch-6 ICs with PowiGaN technology employ lossless current sensing, which contributes to higher efficiency. The new family members retain existing LYTSwitch-6 benefits such as fast transient response, which facilitates excellent cross-regulation for parallel LED strings without the need for additional regulator hardware and flicker-free system operation. This allows simple implementation of a pulse-width-modulation (PWM) dimming interface.
Comments Hubie Notohamiprodjo, director of product marketing for LED lighting at Power Integrations: “The new LYTSwitch-6 ICs with PowiGaN technology enable highly efficient designs up to 110 W for smart residential and commercial fixtures and low-profile ceiling troffers. The high power density of LYTSwitch-6 designs enables reduced height and weight, which is vital for space-constrained and sealed ballast applications.”
The GaN-based LYTSwitch-6 LED-driver ICs are available now. A reference design (DER-801) describing a 100 W 3-way dimming LED ballast is available for download from the Power Integrations website at Power Integrations LYTSwitch-6.
About Power Integrations
Power Integrations, Inc. is a leading innovator in semiconductor technologies for high-voltage power conversion. The company’s products are key building blocks in the clean-power ecosystem, enabling the generation of renewable energy as well as the efficient transmission and consumption of power in applications ranging from milliwatts to megawatts.