STF203-15 THRU STF203-33 USB Upstream Port Filter and TVS For EMI Filtering and ESD Protection PROTECTION PRODUCTSPROTECTION PRODUCTS Features Description The STF203 is a combination EMI filter and line Bidirectional EMI/RFI filtering and line termination termination device with integrated TVS diodes for use with integrated ESD protection on upstream USB ports. It is constructed using a ESD protection for USB power (V ) and data lines BUS proprietary technology that allows passive components (D+ and D-) to and TVS diodes to be integrated in the same package. IEC 61000-4-2 (ESD) 15kV (air), 8kV (contact) Each device will provide termination, filtering, and ESD IEC 61000-4-4 (EFT) 40A (5/50ns) protection for one upstream USB port. The STF203 is Filtering and termination for one USB port an easily implemented solution for meeting the Series resistors: 15, 22, and 33 requirements of revision 1.1 of the Universal Serial Bus Low TVS operating voltage (5.25V) specification. Low leakage current Line termination is achieved with series resistors on Small SC70-6L package both the D+ and D- USB lines. The value of series Solid-state technology resistance added to the output impedance of the USB driver must be as close to possible to the 45 Mechanical Characteristics characteristic impedance of the cable (90 balanced) EIAJ SC70-6L package to minimize transmission line reflections. They are RoHS/WEEE Compliant available with resistor values of 15 (STF203-15), Molding compound flammability rating: UL 94V-0 22 (STF203-22), and 33 (STF203-33). The 1.5k Marking : Marking Code pull-up resistor is required by the USB specification to Packaging : Tape and Reel per EIA 481 identify the equipment as either a full-speed (connected to D+ line) or low-speed (connected to D- Applications line) device. The 47pF capacitors are required to USB Ports bypass high frequency energy to ground and to control the edge rate of the USB signals. The TVS diodes Cellular Handsets provide ESD protection of both (D+ and D-) data lines PDAs and the voltage bus (V ). The TVS diodes on the Pagers BUS input/output pins provide suppression of ESD voltages Digital Cameras in excess of 15kV (air discharge) and 8kV (contact PC Peripherals discharge) per IEC 61000-4-2, level 4. The TVS diode MP3 Players on the V pin will suppress ESD discharges in excess BUS of 25kV per IEC 61000-4-2. Circuit Diagram Schematic and PIN Configuration 6 D In/Out 1 D In/Out . 2 5 4 3 D In/Out D In/Out SC70-6L (Top View) www.semtech.com Revision 03/22/2006 1STF203-15 THRU STF203-33 PROTECTION PRODUCTS Absolute Maximum Rating Rlating Seymbo Vsalu Unit SPteady-State Power 1W00 m SS ESD Air Discharge per IEC 61000-4-2 16 kV V ESD ESD Contact Discharge per IEC 61000-4-2 10 LTead Soldering Temperature 2C60 (10 sec.) L OTperating Temperature -C40 to +125 J STtorage Temperature -C55 to +150 STG Electrical Characteristics STF203-XX Plarameter SsymboCmondition MlinimuTmypicaMsaximu Unit TVVS Reverse Stand-Off Voltage 5V.25 RWM TVVS Reverse Breakdown Voltage I=61mA V BR t TIVS Reverse Leakage Current V = 5.25V, T=25 C 5A R RWM Between and data (D+, D-) pin and Ground TIVS Reverse Leakage Current E1ach Line A R SReries Resistance (STF203-15) E5ach Line 153. 151s6. Ohm S SReries Resistance (STF203-22) E0ach Line 22242sOhm S SReries Resistance (STF203-33) E0ach Line 33363sOhm S PRull Up Resistance 15.35 15. 1s.6 kOhm PU CCapacitor E7ach Line 4Fp TCotal Capacitance Between Input or 6F0 p TOT Output or Ground V = 0V, f = 1MHz R www.semtech.com 2006 Semtech Corp. 2