L4981AD Datasheet

Power Factor Correction ICs


The L4981AD I.C. provides the necessary features to achieve a very high power factor up to 0.99.Realized in BCD 60II technology this power factor corrector (PFC) pre-regulator contains all the control functions for designing a high efficiency-mode power supply with sinusoidal line current consumption. L4981AD Features &bull; control boost pwmup to 0.99p.f.&bull; limitline current distortionto < 5%&bull; universal input mains&bull; feed forward line and load regula tion&bull; average current mode pwm for minimum noise sensitivity&bull; high current bipolar and dmos totem pole output&bull; low start-up current (0.3ma typ.)&bull; under voltage lockout with hysteresis and programmable turn on threshold&bull; overvoltage, overcurrent protection&bull; precise 2% on chip reference externally available&bull; soft start


[{"Name":"Manufacturer","Value":"STMicroelectronics "},{"Name":"Product Category","Value":"Power Factor Correction ICs "},{"Name":"Switching Frequency","Value":"115 kHz "},{"Name":"Maximum Operating Temperature","Value":"+ 125 C "},{"Name":"Mounting Style","Value":"SMD/SMT "},{"Name":"Package / Case","Value":"SO-20 "},{"Name":"Packaging","Value":"Tube "},{"Name":"Minimum Operating Temperature","Value":"- 40 C "}]

Manufacturer information


ON Semiconductor - ON Semiconductor (Nasdaq: ON) is driving energy efficient innovations, empowering customers to reduce global energy use. The company offers a comprehensive portfolio of energy efficient power and signal management, logic, discrete and custom solutions to help design engineers solve their unique design challenges in automotive, communications, computing, consumer, industrial, LED lighting, medical, military/aerospace and power supply applications. ON Semiconductor operates a responsive, reliable, world-class supply chain and quality program, and a network of manufacturing facilities, sales offices and design centers in key markets throughout North America, Europe, and the Asia Pacific regions.

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