Plano, Texas – August 19th, 2015 – Diodes Incorporated has introduced the AL1678 family of LED Drivers, which are suitable for driving non-dimmable retrofit LED bulbs in general illumination applications that do not require high power factor (>0.7). Ensuring a low total circuit bill-of-material (BOM) cost while keeping performance high, these 500V buck-converter LED drivers support output powers up to 15W for wide-ranging LED lighting applications such as Class-A/B/P and GU10 lamps across all mains line voltages.
The AL1678 family, offered in SO-7 packages, provides a variety of different current-rated 500V MOSFETs that allow designers to select the most appropriate driver to meet the needs of different bulb wattage and cost requirements.
With its improved driver topology, the AL1678 family provides significant circuit flexibility and delivers accurate constant current line and load regulation over the 85VAC to 277VAC universal input range. In addition, by operating in boundary-conduction mode, the driver keeps EMI low with high efficiency, greater than 90%, which aids with EMC compliance.
The AL1678 LED drivers’ total BOM lamp cost is low because it removes the need for an external high-voltage MOSFET and an auxiliary winding, while requiring only a single external inductor. Integrated protection features include under-voltage lockout, over-temperature protection, LED open- and short-circuit protection, as well as a thermal fold-back function to help improve the system reliability of retrofit LED lamps at high temperature. The AL1678’s SO-7 package also helps improve electrical isolation and offers improved moisture resistance.
In 10k quantities, unit prices for the different wattage/LED current AL1678 parts are:
8W/120mA AL1678-08BS7-13 $0.14 USD
10W/180mA AL1678-10BS7-13 $0.15 USD
15W/240mA AL1678-20BS7-13 $0.17 USD
The LED drivers are supported by datasheets, applications and design notes, and evaluation boards with user guides. Further information can be found athttp://www.diodes.com.
About Diodes Incorporated
Diodes Incorporated (Nasdaq: DIOD), a Standard and Poor’s SmallCap 600 and Russell 3000 Index company, is a leading global manufacturer and supplier of high-quality application specific standard products within the broad discrete, logic and analog semiconductor markets. Diodes serves the consumer electronics, computing, communications, industrial, and automotive markets. Diodes’ products include diodes, rectifiers, transistors, MOSFETs, protection devices, functional specific arrays, single gate logic, amplifiers and comparators, Hall-effect and temperature sensors; power management devices, including LED drivers, AC-DC converters and controllers, DC-DC switching and linear voltage regulators, and voltage references along with special function devices, such as USB power switches, load switches, voltage supervisors, and motor controllers. Diodes’ corporate headquarters and Americas’ sales office are located in Plano, Texas. Design, marketing, and engineering centers are located in Plano; San Jose, California; Taipei, Taiwan; Manchester, England; and Neuhaus, Germany. Diodes’ wafer fabrication facilities are located in Kansas City, Missouri and Manchester, with two additional facilities located in Shanghai, China. Diodes has assembly and test facilities located in Shanghai and in Chengdu, China, as well as in Neuhaus and Taipei. Additional engineering, sales, warehouse, and logistics offices are located in Taipei; Hong Kong; Manchester; Shanghai; Shenzhen, China; Seongnam-si, South Korea; and Munich, Germany, with support offices throughout the world. For further information, including SEC filings, visit Diodes’ website athttp://www.diodes.com.
