microsemi scottsdale division 8700 e. thomas rd. po box 1390, scottsdale, az 85252 usa, (480) 941-6300, fax: (480) 947-1503 page 1 copyright ? 2001 msc1537.pdf 3-26 2002 rev d www. microsemi . com usb0803 thru USB0824 unidirectional tvsarray ? product preview scottsdale division description this transient voltage suppressor (tvs) array is packaged in an so-8 configuration? giving protection to 2 unidirectional data or interface lines. it is designed for use in applications where protection is required at the board level from voltage transients caused by electrostatic discharge (esd) as defined in iec 61000-4-2, electrical fast transients (eft) per iec 61000-4-4 and effects of secondary lightning. these tvs arrays have a peak power rating of 500 watts for an 8/20 sec pulse. this array is suitable for protection of sensitive circuitry consisting of ttl, cmos dram?s, sram?s, hcmos, hsic microprocessors, universal serial bus (usb) and i/o transceivers. the usb08xx product provides board level protection from static electricity and other induced voltage surges that can damage or upset sensitive circuitry. important: for the most current data, consult microsemi ?s website: http://www.microsemi.com electrical characteristics per line @ 25c unless otherwise specified stand off voltage v wm volts breakdown voltage v br @1 ma volts clamping voltage v c @ 1 amp (figure 2) volts clamping voltage v c @ 5 amp (figure 2) volts standby current i d @ v wm a capacitance (f=1 mhz) c @0v pf temperature coefficient of v br vbr mv/c part number device marking max min max max max max max usb0803 af 3.3 4 8 11 200 5 -5 usb0805 ag 5.0 6.0 10.8 13 20 5 1 usb0812 ah 12.0 13.3 19 26 1 5 8 usb0815 aj 15.0 16.7 24 32 1 5 11 USB0824 ak 24.0 26.7 43 57 1 5 28 note: transient voltage suppressor (tvs) product is normally selected based on its stand off voltage v wm . product selected voltage should be equal to or greater than the continuous peak operating voltage of the circuit to be protected. tvsarray ? series applications ? eia-rs485 data rate: 5 mbs ? 10 base t ethernet ? usb date rate: 900 mbs features ? protects up to 2 unidirectional lines ? surge protection per iec 61000-4-2, iec 61000-4-4 ? provides electrically isolated protection ? ul 94v-0 flamability classification ? low capacitance 5 pf per line pair ? low leakage maximum ratings ? operating temperature: -55c to +150c ? storage temperature: -55c to +150c ? peak pulse power: 500 watts (8/20 s, figure 1) ? pulse repetition rate: < .01% mechanical ? molded so-8 surface mount ? weight 0.066 grams (approximate) ? marking: logo, device marking code, date code ? pin #1 defined by dot on top of package packaging ? tape & reel per eia standard 481 ? 13 inch reel; 2,500 pieces (optional) ? carrier tubes; 95 pcs (standard) usb08xx
microsemi scottsdale division 8700 e. thomas rd. po box 1390, scottsdale, az 85252 usa, (480) 941-6300, fax: (480) 947-1503 page 2 copyright ? 2001 msc1537.pdf 3-26 2002 rev d www. microsemi . com usb0803 thru USB0824 unidirectional tvsarray ? product preview scottsdale division 8/20s 500w pulse figure 1 peak pulse power vs pulse time t = sec graphs package data symbols & definitions symbol definition v wm stand off voltage: maximum dc voltage that can be applied over the operating temperature range. vwm must be selected to be equal or be greater than the operating voltage of the line to be protected v br minimum breakdown voltage: the minimum voltage the device will exhibit at a specified current v c clamping voltage: maximum clamping voltage across the tvs device when subjected to a given current at a pulse time of 20 s. i d standby current: leakage current at v wm. c capacitance: capacitance of the tvs as defined @ 0 volts at a frequency of 1 mhz and stated in picofarads. graphs outline and schematic inches millimeters max min dim max min 0.197 a 0.188 4.77 5.00 0.158 0.150 3.81 4.01 0.069 0.053 1.35 1.75 0.021 0.011 0.28 0.53 0.050 0.016 0.41 1.27 0.050 bsc 1.27 bsc 0.010 0.006 0.15 0.25 0.008 0.004 0.10 0.20 0.206 0.189 4.80 5.23 b c d f g j k l 0.244 p 0.228 5.79 6.19 figure 2 pulse wave form ppp peak pulse power (kw) outline pad layout schematic
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