This current limit protection design challenge can be seen in multiple-USB port power applications, where designers must protect their systems from excessive loads on the USB interface. USB 2.0, the current standard, specifies a maximum current of 500mA. Using Fairchild’s IntelliMAX, advanced load switches, designers meet this specification by setting the device’s minimum current limit to 500mA, which at 15 percent tolerance, equates to a maximum current limit of approximately 700mA. The equivalent performance using a 25 percent tolerance-device is 500mA minimum and 900mA maximum, or almost twice the set point. This performance, coupled with its low (<3uA) leakage current draw and an ultra-fast (<20us) protection response, make Fairchild’s FPF23xx series ideal for providing current-limiting protection in set-top boxes, computing and cell phone applications.
The FPF2300, FPF2302, FPF2303, FPF2310, FPF2312 and FPF2313 are part of a comprehensive family of IntelliMAX advanced load management switches. These devices provide robust protection and power conditioning for a broad range of computing, consumer and portable applications. With their high-level of integration, these solutions are easy to design-in, save valuable PCB space and reduce overall component count.
Price (each, 1000 pcs.): US $ 0.82
Availability: Samples available now
Delivery: 12-14 weeks
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Note to Editor: For a datasheet in PDF format, please go to:
About Fairchild Semiconductor:
Fairchild Semiconductor (NYSE: FCS) is a global leader delivering energy-efficient power analog and power discrete solutions. Fairchild is The Power Franchise®, providing leading-edge silicon and packaging technologies, manufacturing strength and system expertise for consumer, communications, industrial, mobile, computing and automotive systems. An application-driven, solution-based semiconductor supplier, Fairchild provides online design tools and design centers worldwide as part of its comprehensive Global Power ResourceSM. Please contact us on the web at www.fairchildsemi.com.
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