CamSemi launches C2172PX8 for low cost USB chargers for smartphones

ENGLAND, UK: CamSemi has announced the first in a series of planned new products that will extend the company's recently launched C2170 family of next generation Primary Side Sensing (PSS) controllers into higher power markets.

The new C2172PX8 PSS controller targets low cost, MoU-compliant USB chargers for smartphones, tablets and other universal input applications rated to 7.5 W, whereas the first two C2170 controllers launched in June are optimised for applications to 4 W and 6.5 W.

The new C2172PX8 controller combines the company's recently patented bipolar transistor (BJT) drive scheme, advanced PSS technology and several power-saving techniques to help manufacturers develop ultra low cost, more energy-efficient BJT-based solutions. These approaches enable simpler circuits with reduced component counts and system costs but with significant performance and manufacturing advantages over competitive approaches.

CamSemi's improved drive technology boosts switching performance and delivers higher active mode efficiency, greater product robustness from more Reverse Bias Safe Operating Area (RBSOA) margin and the flexibility to accommodate a wide range of low cost BJTs for further cost savings.