mic rosemi scottsdale division 8700 e. thomas rd. po box 1390, scottsdale, az 85252 usa, (480) 941 - 6300, fax: (480) 947 - 1503 page 1 copyright ? 2001 msc 16 87 .pdf 02 - 14 - 2001 rev f www. microsemi . com MLC496 1 line pair bidirectional tvsarray ? product preview scottsdale division description this diode series array is packaged in a soic - 08 configuration giving protection to 1 line bi - directional or 1 line pair differential mode. it is designed for use in applications were protection is required at the board level from volt age transients caused electrostatic discharge (esd) as defined in iec 61000 - 4 - 2, electrical transients (eft) per iec 61000 - 4 - 4 and effects of secondary lighting. the MLC496 tvs array has a peak power rating of 500 watts for an 8/20 sec pulse. this array is suitable for protecting sensitive circuitry consisting of ttl, dram?s sram?s cmos, hcmos, hsic, microprocessors, and low voltage interfaces. it provides protection for universal serial bus (usb) and i/o transceivers. because of its low standby curren t i t provides superb component protection for battery - operated equipments. because of the physical size, weight and protection capabilities, this product is ideal for use in but not limited to miniaturized electronic equipment such as hand held instrument s, computers, computer peripherals and cell phones. 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) @0v c pf part number devic e marking max min max max max typ MLC496 496 1.0 2.5 6 12 20 1.5 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 b e protected. tvs array ? series applications eia - rs232 data rates 19.6kbs eia - rs422 data rates 10mbs eia - rs423 data rates 100kbs features protects 1 line bi - directional, protects line pair differential mode surge protectio n per iec 1000 - 4 - 2, iec 1000 - 4 - 4 provides electrically isolated protection ultra low capacitance 1.5 pf @ 0v @1 mhz low standby current less than 20 a maximum ratings operating temperature: - 55c to +150c storage temperature: - 55c to +150c peak pulse power 500 watts (8/20 s figure 2) pulse repetition rate: <.01% mechanical molded soic - 8 surface mount weight .066 grams (approximate) marking: logo, device marking, data code pin one defined by dot on top of package packaging tape & reel per eia standard 481 - 1 - a carrier tubes 95 pcs per ( standard) 2,500 pieces per 13 inch reel (optional) MLC496
mic rosemi scottsdale division 8700 e. thomas rd. po box 1390, scottsdale, az 85252 usa, (480) 941 - 6300, fax: (480) 947 - 1503 page 2 copyright ? 2001 msc 16 8 7 .pdf 02 - 14 - 2001 rev f www. microsemi . com MLC496 1 line pair bidirectional tvsarray ? product preview scottsdale division symbols & definition s symbol definition v wm rated 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 t o 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 standb y 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 pico farads. graphs packaging and schema tic 8/20 s 500w pulse graphs package data figure 1 peak pulse power vs pulse time t=sec figure 2 pulse wave form ppp peak pulse power (kw) inches millimeters dim min max min max a 0.188 0.197 4.775 5.004 b 0.150 0.158 3.810 4.013 c 0.228 0.244 5.791 6.198 d 0.050 bsc 1.270 bsc e 0.014 0.018 0.356 0.457 f 0.004 0.008 0.1 02 0.203 g 0.053 0.069 1.346 1.753 h 0.189 0.206 4.801 5.232 j 0.007 0.009 0.178 0.229 k 0.016 0.049 0.406 1.245
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