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 msc1706.pdf 08-01 2001 rev b www. microsemi . com slve2.8 k bidirectional tvsarra y ? product preview scottsdale division features ? protects 2.8 v low voltage components ? protects 1 bidirectional line to ground or 1 differential line pair ? bidirectional single line capacitance 50 pf ? low leakage 0.1 a maximum ratings ? operating temperature: -55c to +150c ? storage temperature: -55c to +150c ? peak pulse power 400 watts ( 24 amps at 8/20 s ? see figures 1 and 2) description microsemi?s proprietary process provides low standoff voltages and the lowest standby current in the industry of 0.1a. this 4-pin bidirectional array is designed for use in applications where protection is required at the board level from voltage transients caused by electrostatic discharge (esd) as defined by iec 61000-4-2, electrical fast transients (eft) per iec 61000-4-4 and effects of secondary lighting. this product is designed to provide protection in the bidirectional mode for 1 line by connecting the input/output line to pins 2 and 3 and pins 1 and 4 to ground. for differential protection pins 1 and 4 can be connected to a second line. the slve2.8k product provides board-level protection from static electricity and other induced-voltage surges that can damage sensitive circuitry. these transient voltage suppressor (tvs) diode arrays protect 2.8 v volt components such as dram?s sram?s cmos, hcmos, hsic, and low voltage interfaces. because of the physical size, weight and protection capabilities, this product is ideal for use in but not limited to miniaturize electronic equipment such as hand-held instruments, computers, computer peripherals and cell phones and pda?s. electrical characteristics per line @ 25c unless otherwise specified reverse stand-0ff voltage v rw m volts snap-back voltage v sb i sb = 50 ma volts punch-thru voltage v pt @ 2 a volts clamping voltage v c @ i pp = 1 amp volts clamping voltage v c @ i pp = 5 amp volts standby (leakage) current i d @ v rw m = 2.8v t = 25c a capacitance (f=1 mhz) @ 0v pf part number device marking max min min max max max max slve2.8k e2.8 2.8 2.8 3.0 4.1 5.3 0.1 100 tvsarray ? series applications ? eia-rs232 data rates 19.6kbs ? eia-rs422 data rates 10mbs ? eia-rs423 data rates 100kbs ? 200 mhz maximum mechanical ? molded sot-143 surface mount ? weight .014 grams (approximate) ? body marked with device number packaging ? tape & reel per eia standard 481 ? 3,000 pieces per 7 inch reel slve2.8k
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 msc1706.pdf 08-01 2001 rev b www. microsemi . com slve2.8 k bidirectional tvsarra y ? product preview scottsdale division figure 1 peak pulse power vs pulse time symbols & definitions 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 to be protected. v pt punch-thru voltage: the minimum voltage the device will exhibit at a specified current. v sb snap-back voltage: the minimum snap back voltage the device will exhibit at a specific 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 pico farads. graphs packaging and schematic figure 2 pulse wave form ppp peak pulse power (kw) graphs package data 8/20 s 400w pulse 100ns 1s 10s 100s 1ms 10ms 10000 1000 100 10 pad dimensions inches millimeters dim min max min max a .032 .040 .813 1.016 a1 .040 .048 1.016 1.219 b --- .057 --- 1.448 c --- .087 --- 2.210 d .075 .075 1.905 1.905 e .067 .067 1.702 1.702 g .032 .040 .813 1.016 h .134 .140 3.404 3.556 inches millimeters dim min max min max a .070 .080 1.778 2.032 b .047 .055 1.194 1.397 c .030 .037 .762 .940 c1 .015 .020 .381 .508 d .110 .119 2.794 3.023 e .035 .044 .889 1.118 f .071 .079 1.803 2.007 g .0006 .006 .015 .152 h .003 .007 .076 .178 i .018 .023 .457 .584 j .083 .093 2.108 2.362 schematic
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