MY-Semi launches 4 channels High Power APDM gray scale adjustment constant current LED driver IC MY9291

Dec. 26, 2010
Date Announced: 26 Dec 2010 Conventional high power LED architecture lighting usually takes constant voltage PWM or constant current driver with very costly high current driver IC as solution. Under such design, it comes out plenty of accessories, even very expensive.Smaller, stronger, more versatile. MY-Semi launches upgraded two-wire, four channel high power RGBW LED driver IC MY9291. With 16bit APDM (Adaptive Pulse Density Modulation) gray scale adjustment and high accuracy performance, MY9291 is opening up entirely new areas of application such as cluster lamps, wall washing, LED architecture lighting, LED neon sign and other high quality RGB color mixing applications.The four-channel MY9291 supports up to 350mA constant current output and features EMI reduction data clock input. Furthermore, its APDM method increases visual refresh rate to 2,000Hz. A much easier PCB layout but much longer durability and much higher flexibility, thanks to MY9291’s innovative and compact design.Moreover, clock duty recovery and pulse re-timing techniques make long cascading possible. Also, grayscale clock frequency division, output Tr/ Tf timing and current output waveform selections enable high power LED application.MY9291 TSSOP20-173mil-0.65mm Exposed PAD (MY9291TE), SSOP20-150mil-0.635mm (MY9291SS) and QFN20-3mmx3mm (MY9291QD) samples are available.

Taiwan: MY-Semi Inc. Tel: +886-3-6585656 Fax: +886-3-6585252

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