The FSFM300 is a highly integrated Green FPS switch that combines a pulse-width-modulator (PWM) and an avalanche-rugged SenseFET MOSFET into a thermally efficient and cost-effective 8-DIP package. By incorporating a SenseFET into the actual die, it reduces component count compared to alternate solutions and saves valuable design time, while reducing overall system costs. This SenseFET offers exceptionally low RDS(ON), delivering high levels of efficiency for the overall design.
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To ensure low standby consumption in power-sensitive applications, the FSFM300 uses burst mode protection bringing standby power consumption to less than 70~140mW depending on the selection of passive components at no load and 265 VAC. Since many of these applications need to operate during a wide variety of conditions, this power switch incorporates strong protection features such as over voltage protection, over load protection, advanced over current protection and internal thermal shutdown to shut down the power supply safely in the event of a failure or abnormal condition.
The FSFM300 adds to Fairchild’s comprehensive portfolio of power switches (FPS™). These highly integrated off-line power switches feature a fully avalanche-rated SenseFET and current mode PWM IC with advanced burst mode operation to meet low standby power regulations. These switches are instrumental in simplifying designs and lowering costs in power-sensitive applications.