Power Integrations announced the latest high-power-density members of its LYTSwitch-6 family of safety-isolated LED-driver ICs for smart-lighting applications. They can deliver up to 110W with 94 percent conversion efficiency. Using a simple, flexible flyback topology that leverages PowiGaN technology, the 750V LYTSwitch-6 IC’s high efficiency eliminates the need for heatsinks by reducing wasted heat by more than one-third.
The devices employ lossless current sensing and 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 to allow simple implementation of a pulse-width-modulation (PWM) dimming interface.
The GaN-based LYTSwitch-6 LED-driver ICs are available now, priced at $3.14 in 10,000 quantities. A reference design (DER-801) describing a 100 W 3-way dimming LED ballast is available for download.
Learn more at https://www.power.com/lytswitch-6.