STF201-22 Datasheet | SEMTECH

USB Downstream Port Filter & TVS For EMI Filtering and ESD Protection PROTECTION PRODUCTS Description Features The STF201 is a bination EMI filter and line termiu Bidirectional EMI/RFI filtering and line termination nation device with integrated TVS diodes for use on with integrated ESD protection downstream USB ports. It is constructed using a u ESD protection for USB power (VBUS) and data lines proprietary technology that allows passive ponents (D+ & D-) to IEC 61000-4-2 Level 4 and TVS diodes to be integrated in the same package. u Filtering and termination for two USB data lines Each device will provide termination, filtering, and ESD u Different series resistors for impedance matching protection for one downstream USB port. The STF201 u Low TVS operating voltage (5.25V) is an easily implemented solution for meeting the u Low leakage current requirements of revision 1.1 of the Universal Serial Bus u Low capacitance specification. u Solid-state technology USB line termination is achieved with series 22W or 30W resistors on both the D+ and D- USB lines. These resistors preserve signal integrity by matching the cable Mechanical Characteristics impedance to that of the differential driver. The 15k W u EIAJ SOT23-6L package pull-down resistors plete the termination circuit on u Molding pound flammability rating: UL 94V-0 each line. They are required by the USB specification u Marking : Marking Code to identify the line as a downstream connection. The u Packaging : Tape and Reel per EIA 481 47p F capacitors are used to bypass high frequency energy to ground and for edge rate control of the USB Applications signals. Finally, the STF201 contains TVS diodes for ESD protection of both (D+ & D-) data lines and the u USB Hubs .. voltage bus (VBUS). The TVS diodes provide effective u Portable electronics suppression of ESD voltages in excess of 15k V (air u Printers discharge) and 8k V (contact discharge) per IEC 61000u Monitors 4-2, level 4. u...