PI launches new LinkSwitch-PH series LED driver IC

For high voltage integrated circuit industry high efficient power conversion of the leader of the Power Integrations company announced today that the LinkSwitch-PH series of products of its popular add seven new LED driver IC. The new device (LNK413-LNK419) is designed specifically for industrial and commercial applications with high efficiency and system life requirements, which are suitable for applications ranging from 3 W to 55 W fluorescent lamps. The efficiency of the new device can be up to 88%, which uses a single PWM dimming controller, both power factor correction (PFC) function and precise constant current (CC) power conversion function. The integrated PFC and CC feature allows simultaneous multiple drivers to provide efficient driving for outdoor lights and street lamps, and also features a redundant design.

The LinkSwitch-PH device integrates a PFC/CC controller, a 725 V MOSFET and a MOSFET driver into a single package, which can greatly simplify the circuit layout and design, and omit the parasitic elements between the controller and the MOSFET. The new IC up to 25 elements used to eliminate the traditional isolation flyback design to achieve low cost, high reliability, save the components including high voltage and large capacity electrolytic capacitor and coupler device, these devices are most likely to limit the service life of the LED lamp.

Power Integrations lighting product marketing manager David New said: the introduction of these latest LinkSwitch-PH devices, is a complement to the existing thyristor dimming device series. The new device can not only simplify the design of flyback power supply, but also can improve its efficiency, and can work in input voltage up to 305 VAC, the single voltage products so that they can be used to develop suitable for industrial and commercial lighting applications and general input products. Designers use these devices for solid-state lighting design, it can be predicted that the working life of the driver and its precise control of the LED array. "