Fairchild Intros FSD200/210/M311 Power Switches
Fairchild Semiconductor International (South Portland, ME) introduced three new Fairchild Power Switch (FPS) products featuring burst-mode operation for standby mode (under 0.1W at 265Vac) that meets the International Energy Agency’s (IEA) 1W Initiative aimed at reducing standby power losses to below 1W. The FSD200, FSD210 and FSDM311 reduce bill-of-material costs while achieving high efficiency and obtaining regulatory compliance.
The unique integration of each of these FPS products minimizes external components, simplifies designs, and lowers costs in target applications, such as battery chargers and adapters, mobile phones, PDAs, MP3s, C-TVs, monitors and PC auxiliary power. The off-line power switches combine a fully avalanche-rated SenseFET (LDMOS) for current sensing (650V or 700V minimum breakdown ratings) with a voltage-mode, pulse-width modulated IC, and are equipped with a built-in startup switch, eliminating the need for an external startup resistor.
The FPS products are self-biased and protected, linear control, current-to-duty cycle converters with open-drain output. They operate from 6.7V to 21V at a frequency of 134kHz with frequency modulation for low EMI. Additional features include internal soft-start to reduce the overshoot current at plug in, overload protection, over-current protection and internal thermal shutdown protection.
Both the FSD200 and FSD210 are available in 7-DIP packages while the FDSM311 is available in an 8-DIP package. Beginning in 2004, the products will be available in lead-free packaging that meets or exceeds the requirements of the joint IPC/JEDEC standard J-STD-020B, and is compliant with the European Union requirements, which will take effect in 2005. Pricing for the FSD200 is $0.31 for 1,000 pieces, $0.34 for the FSD210 in 1,000-piece quantities, and $0.43 for the FSDM311 in 1,000 piece quantities. Available now, delivery is eight weeks ARO.
