In May 2011, International Rectifier introduced integrated circuit, which the company claims to be the first, to integrate power factor correction (PFC) and ballast control in a single compact 8-pin SO-8 package. The new IRS2580DS Combo8 IC simplifies design and reduces overall component count to speed up design in energy efficient lighting applications.
Features and USP: The IRS2580DS includes a boost converter control circuit operating in critical conduction free running frequency mode to provide power factor correction with ultra low THD. The new IC also includes a 600 V half bridge control circuit working at 50 per cent duty cycle and variable frequency for driving the resonant mode lamp output circuit. Complete fault protection circuitry is also included for protection against such conditions as mains interrupt or brown-out, lamp non-strike, lamp filament failure and end of life. The IRS2580DS requires only two primary control pins to perform all the necessary ballast functions.
For further details: International Rectifier; Ph: +91-80-41142644/2645; Fax: +91-80-41142643 ; www.irf.com