Dual-Phase Controller IC targets active PFC circuits.

Press Release Summary:




Model SSC2101S dual-phase DCM interleaved PFC controller IC includes 2 boost regulators operating 180° out of phase in Discontinuous Conduction Mode (DCM), enabling all switching to be done at zero current. Featuring 8-pin package, IC incorporates feedback open loop detection, overvoltage protection, and overcurrent protection. It is designed for active PFC converters in telecom, server, home appliance, and industrial markets.



Original Press Release:



Allegro MicroSystems, Inc. Introduces New Dual-Phase DCM Interleaved PFC Controller IC Designed for Active Power Factor Correction Circuits



Worcester, MA - Allegro MicroSystems, Inc. announces a new dual-phase DCM interleaved PFC controller IC targeted at the telecom, server, home appliance and industrial markets. Allegro's SSC2101S is designed specifically for active power factor correction (PFC) converters. When compared to other solutions on the market today Allegro's new device provides higher efficiency and less EMI noise than comparable devices.

Two boost regulators operating 180° out of phase in Discontinuous Conduction Mode (DCM) enables all switching to be done at zero current. Zero current switching improves efficiency and reduces switching noise and stress on components over a wide range of input voltage and output loadings. The pin count has been minimized (8-pin package) without sacrificing important features such as feedback open loop detection, overvoltage protection, overcurrent protection, and fast load response. Allegro's SSC2101S enables users to realize high reliability power supply systems with fewer external components. The SSC2101S is priced at $0.80 in quantities of 1,000 and has a 12-week ARO lead-time to market.

About Allegro

Allegro MicroSystems, Inc. is a leader in developing, manufacturing and marketing high-performance power and Hall-effect sensor integrated circuits. Allegro's innovative solutions serve high-growth applications within the automotive, communications, computer/office automation, consumer and industrial markets. Allegro is headquartered in Worcester, Massachusetts (USA) with design and applications centers located in North and South America, Asia, and Europe. Further information about Allegro can be found at www.allegromicro.com.

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