(TOKYO:6502) today announced the development of an AC/DC offline LED
controller IC employing a single converter PFC*1 for LED
lighting and lighting equipment. The samples are currently available and
the company will move to commercialization in July.
The new product is an isolated flyback LED power controller that was developed to meet demanding design criteria: support for triac dimming; high PFC and fewer external parts by achieving active PFC with a single converter; and no use of opto-couplers and detectors for average LED current control of the second side of the transformer. The power factor value (PF) is more than 0.8-0.9 with standard 120-220V AC, and the accuracy of LED output current is +/-5%.
LED lighting, now replacing incandescent, offers low power consumption and a long operating life. Toshiba is developing products that feature control of higher power LED, that support dimming and higher PF, and that deliver more accurate output current with higher efficiency.
*1 Power Factor Correction: A function which is applied to improve the efficiency of electric power transmission system.
Main Features of New IC
|- Support for triac dimming|
|- no use of opto-couplers and detector for average LED current control|
|- fewer external parts due to a PFC with a single converter|
|- bottom switch control of main MOSFET contributes to lower noise and lower power consumption|
|- LED output current accuracy less than +/-5% under 8-22V power supply.|
|- built-in detector of opening or shorting of the LED|
|TC62D902FG||March of 2013||100Yen||July of 2013|
Main Specification of New Product
|Function||AC/DC offline LED power controller|
|Switching method||Isolated flyback|
|Supply voltage||Vac 85-264V|
|Output||Up to 20W, drive 3-8 LED in series, up to 1A.|
Toshiba is a world-leading diversified manufacturer, solutions provider and marketer of advanced electronic and electrical products and systems. Toshiba Group brings innovation and imagination to a wide range of businesses: digital products, including LCD TVs, notebook PCs, retail solutions and MFPs; electronic devices, including semiconductors, storage products and materials; industrial and social infrastructure systems, including power generation systems, smart community solutions, medical systems and escalators & elevators; and home appliances.
Toshiba was founded in 1875, and today operates a global network of more than 550 consolidated companies, with 202,000 employees worldwide and annual sales surpassing 6.1 trillion yen (US$74 billion). Visit Toshiba's web site at www.toshiba.co.jp/index.htm