LED drivers deliver flicker-free output up to 65W

February 07, 2018 // By Julien Happich
Power Integrations' LYTSwitch-6 family of safety-isolated LED-driver ICs delivers flicker-free output up to 65W with up to 94% efficiency and as little as 15mW standby power.

With configuration options for two-stage or single-stage PFC support, the devices target smart residential and commercial fixtures and low-profile ceiling troffers. They exhibit fast transient response, which facilitates excellent cross regulation performance of parallel LED strings without additional regulator hardware, and allows easy-implementation of a pulse-width-modulation (PWM) dimming interface. LYTSwitch-6 ICs include both constant-voltage (CV) and constant-current (CC) operation, enabling lighting manufacturers to reduce the number of product variants, resulting in manufacturing and logistics savings. The new ICs are protected by an advanced thermal foldback system which prevents overheating while delivering as much light as thermally possible in any circumstance or installation.

The chips come with a built-in 650V or 725V MOSFET and secondary-side FluxLink control which eliminates the need for an optocoupler and provides highly accurate output with better than 3% CV and CC over line, load and temperature.

Power Integrations -  www.power.com

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