Latest safety-isolated LED driver ICs pave the way for smart lighting applications

Power Integrations, the leader in high-efficiency, high-reliability LED-driver ICs, announced new high-power-density members of its LYTSwitch-6 family of safety-isolated LED-driver ICs for smart-lighting applications. The brand new ICs with PowiGaN technology enable designs that deliver as much as 110 W with 94% conversion efficiency utilizing a simple, flexible flyback topology.

The high quality 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 as much as 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 the larger efficiency. The new members of the family retain existing LYTSwitch-6 benefits for example 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 enables 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 commercial and residential fixtures and low-profile ceiling troffers. The high power density of LYTSwitch-6 designs enables reduced weight and height, that is vital for space-constrained and sealed ballast applications.\”

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