New Industry Products

Fairchild Next Generation Power Switch Series Meets 2013 ErP Lot 6 Standby Power Regulations With One Chip

October 03, 2011 by Jeff Shepard

The power saving requirements of the 2013 EU eco-design directive ErP (Energy-related Products) Lot 6 requires the maximum power consumption of electronic devices in standby mode to be less than 0.5W. This requirement remains a significant challenge for auxiliary power supply designs in applications such as PCs, game consoles and LED TVs.

Fairchild Semiconductor has introduced the FSB series of ac regulators, the next-generation green-mode Fairchild Power Switch (FPS™) to help designers meet the challenge of achieving less than 0.5W power consumption in standby mode. By incorporating Fairchild’s mWSaver™ technology, devices in the FSB series dramatically reduce standby and no-load power consumption, enabling conformance to all worldwide standby mode guidelines.

The FSB series integrates advanced current-mode pulse width modulator (PWM) and an avalanche-rugged 700V SenseFET in a single package solution allowing auxiliary power designs with higher standby energy efficiency, reduced size, improved reliability and a lower system cost than previous solutions.

An innovative AX-CAP™ method, one of the five proprietary mWSaver technologies, minimizes losses in the EMI filter stage by eliminating the X-cap discharge resistors while still meeting IEC61010-1 safety requirements. mWSaver technology’s green-mode function provides off-time modulation, which linearly decreases the switching frequency at light-load condition to minimize switching losses. Combined with the extremely low operating current, the FSB series easily meets and exceeds the light load power consumption limits.

Integrated protection features include programmable cycle-by-cycle current limiting, internal open-loop protection, built-in brown-in and brown-out protection, high and low line compensation for constant power limit, over-temperature protection with hysteresis, under-voltage lockout and over-voltage protection. The FSB-series offers integrated MOSFETs with different current ratings to cover up to 35W designs. The first product released in the lineup is the FSB127H with 2A internal MOSFET. It is available in an 8-pin dual-inline package.

The FSB127H is priced (in 1,000 piece quantities) at US $1.56, with a delivery of 8-12 weeks ARO.

More news and information regarding the latest developments in Smart Grid electronics can be found at Darnell’s SmartGridElectronics.Net.