Optimized performance is more suitable for Asian and European lighting markets; can provide excellent dimming
San Jose, California, USA, November 19, 2013- Power IntegraTIons, a world leader in high-efficiency and high-reliability LED driver ICs (NASDAQ: POWI), today introduced a series of devices suitable for high-voltage applications At this point, the LYTSwitch â„¢ -4 LED driver IC product line is readily available. LYTSwitch-4 IC can provide accurate output current and high efficiency for bulb and tube applications and high bay lighting. This device not only simplifies the design and reduces costs, but also ensures that the lighting provides a consistent light output and provides excellent performance in thyristor dimming applications.
The LYTSwitch-4 IC uses a single-stage converter topology that combines PFC and constant current (CC), so in typical applications the power factor can exceed 0.95 and the efficiency is above 90%. The design based on the new driver can easily meet the total harmonic distortion (THD) standard of EN61000-3-2C, and the design can be optimized to provide a THD of less than 10%. In the load range and production environment, the adjustment rate is better than +/- 5%, so it can reduce the need for over-design and easily meet the minimum brightness target value, thereby reducing system cost. The device has a high switching frequency (132 kHz), which allows smaller and lower-cost cores to be used in the design, and frequency jitter technology can also reduce EMI filtering requirements. The combination of these factors enables the design of LED drivers to be easily incorporated into bulbs with limited space.
Andrew Smith, senior product marketing manager at Power IntegraTIons, said: "Since the LYTSwitch-4 LED driver IC combines high efficiency and excellent dimming performance, this series of ICs has been popular since the launch of the original low-voltage device. Even with the cutting edge Used in conjunction with the trailing edge thyristor dimmer, and adopts a lower conduction angle, the power supply design can still meet the NEMA SSL-7 standard. The startup speed of the driver is very fast, usually less than 500 milliseconds, even when it is not turned on At 10% light output, the starting speed is also very fast, and the sudden brightening phenomenon is virtually eliminated. "
Designers can use our recently developed high-voltage LED lighting reference design jointly developed with Cree to evaluate the latest LYTSwitch-4 LED driver IC product family. DER-396 introduces a PAR38 spotlight LED driver design. These documents and all other similar reference designs co-developed with Cree are available at: http: //.
LYTSwitch IC can be used to design smaller and longer-life lighting lamps. It has a wide range of applications, including consumer bulbs, commercial lighting and T8 tubes, industrial lighting, industrial and mining lamps, and outdoor lighting. LYTSwitch devices can also provide all the common safety features of Power IntegraTIons products, including overvoltage, overcurrent and overheat protection. In addition, LYTSwitch devices do not require the use of optocouplers or large-capacity electrolytic capacitors, which can reduce the number of components and improve reliability. The high-voltage LYTSwitch-4 IC is now available in samples in eSIP-7C (E) and eSIP-7F (L) packages, with a unit price of $ 0.58 (non-dimming) to $ 0.62 (dimming) based on the order of 10,000 pieces . The reference design can be downloaded from http: //. In addition, the Power IntegraTIons website also provides product data sheets and product introduction videos at the following URL: http: //.
About Power Integrations
Power Integrations, Inc. is a supplier of high-performance electronic components for high-voltage power conversion systems and is headquartered in Silicon Valley, USA. The company's integrated circuits and diodes can help a large number of electronic products, including TVs, PCs, home appliances, smart meters and LED lights, to design compact, energy-efficient AC-DC power supplies. CONCEPT's IGBT driver system can improve the efficiency, reliability and cost-effectiveness of high-power applications. Its applications include industrial motors, solar and wind energy systems, electric vehicles and high-voltage DC transmission. Since its introduction in 1998, Power Integrations' EcoSmart® energy-saving technology has saved billions of dollars in energy consumption and avoided millions of tons of carbon emissions. Because of the company's products' impact on environmental protection, Power Integrations stock has been classified under the NASDAQ® Clean Edge® Green Energy Index, The Cleantech Index® and Ardour Global IndexSM. For more information including design support tools and resources, please visit; the green space on the Power Integrations website provides a comprehensive guide to global energy efficiency standards.
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