CamSemi targets ‘constant power’ C2283 controller at low cost networking adapters

CamSemi’s new CP PSS controller will allow designers to ‘right size’ their networking adapter solutions for the first time, while enjoying system costs and component counts lower than any of today’s more expensive competitive approaches. Previously they had to over specify adapters by adding extra or higher-rated components to ensure their designs were compatible with the ‘dying gasp’ requirement in the ITU-T G.991.2 standard.

C2283 also offers excellent light load efficiency to help manufacturers more easily meet the challenging standby power requirements of EC 1275/2008 tier two.

“CamSemi’s new C2283 controller is being launched to help build on the considerable market successes that we have already achieved in networking products with some of our other products. CamSemi’s C2470 RDFC family was introduced to offer an exceptionally low-cost approach in linear replacement applications, whereas C2283 is cost optimised for voltageregulated supplies. Our patented PSS controller architecture has been further developed in C2283 to boost light load efficiency, improve performance and integrate a novel constant power mode to improve system-level costs,” said David Baillie, CEO of CamSemi.

C2283 delivers many of the same key design benefits as the company’s existing PSS controller families including: very accurate voltage regulation across the entire load range allowing use of lower cost components elsewhere in the system; quasi-resonant switching to improve efficiency and reduce EMI; and full featured protection.

C2283 is packaged in SOT23-6 and samples are available now. A product datasheet can be downloaded from the design support section of CamSemi's website with more detailed information and support available from CamSemi or one of the company’s distributors.

C2283 is the second of a new class of PSS controllers launched by CamSemi within the last month to offer fast load pull-up for networking applications. C2283 has been specifically designed for use with high capacitance loads that deliver longer hold-up times to ride through mains-power disruptions, whereas C2183 is a general-purpose controller for more typical loads and battery-charger applications.