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The LinkSwitch-PH device combines a PFC/CC controller, a 725 V MOSFET, and a MOSFET driver into a single package, which greatly simplifies circuit layout and design, eliminating parasitic components between the controller and the MOSFET. The new IC can eliminate up to 25 components used in traditional isolated flyback designs, achieving ultra-high reliability at low cost. The omitted components include high-voltage large-capacity electrolytic capacitors and optocouplers, which are most likely to limit LED lights. The service life.
David New, Lighting Product Marketing Manager, Power Integrations, said: "The introduction of these new LinkSwitch-PH devices complements the existing family of thyristor dimming devices. The new devices not only simplify flyback power supply design but also increase efficiency. And can operate at input voltages up to 305 VAC, so they can be used to develop single-voltage products and general-purpose input products for industrial and commercial lighting applications. Designers can use these devices for solid-state lighting designs to anticipate drives. The working life is comparable to its precisely controlled LED array."
LinkSwitch-PH devices are available now, priced at $1.11 each in 10,000-piece quantities. 
SAN JOSE, Calif., January 25, 2011 – Power Integrations, Inc. (Nasdaq: POWI), a leader in the high-voltage integrated circuit industry for energy efficient power conversion, today announced its popular LinkSwitch- The PH product line adds seven new LED driver ICs. Designed for industrial and commercial applications where high efficiency and system life are critical, the new device (LNK413-LNK419) is suitable for lighting applications from 3 W bulbs to 55 W fluorescent replacement lamps. With up to 88% efficiency, the new device features a PWM dimming single-stage controller with power factor correction (PFC) and accurate constant current (CC) power conversion. The integrated PFC and CC functions allow multiple drives to be connected in parallel at the same time, providing efficient drive for outdoor and street lights, as well as functional redundancy.