document number: 84787 for tec hnical questions, contact: emifilter@vishay.com www.vishay.com rev. 1.0, 21-apr-10 1 3-channel emi-filter with esd-protection VEMI353A-HAF vishay semiconductors marking (example only) dot = pin 1 marking yy = type code (see table below) xx = date code features ? ultra compact llp75-7l package ? 3-channel emi-filter and esd-protection ? low leakage current ? line resistance r s = 30 ? typical cut off frequency f 3db = 100 mhz ? esd-protection acc. iec 61000-4-2 30 kv contact discharge 30 kv air discharge ? e4 - precious metal (e.g. ag, au, nipd, nipdau) (no sn) ? compliant to rohs directive 2002/95/ec and in accordance to weee 2002/96/ec 20517 1 19423 7 1 23 65 4 21001 xx yy ordering information device name ordering code taped units per reel (8 mm tape on 7" reel) minimum order quantity VEMI353A-HAF VEMI353A-HAF-g-08 3000 15 000 package data device name package name type code weight molding compound flammability rating moisture sensitivity level soldering conditions VEMI353A-HAF llp75-7l 9d 4.2 mg ul 94 v-0 msl level 1 (according j-std-020) 260 c/10 s at terminals absolute maximum ratings parameter test conditions symbol value unit peak pulse current all i/o pin to pin 7; acc. iec 61000-4-5; t p = 8/20 s; single shot i ppm 4a esd immunity contact discharge acc. iec61000-4-2; 10 pulses v esd 30 kv air discharge acc. iec61000-4-2; 10 pulses 30 operating temperature junction temperature t j - 40 to + 125 c storage temperature t stg - 55 to + 150 c ** please see document vishay material category policy: www.vishay.com/doc?99902
www.vishay.com for technical questions, contact: emifilter@vishay.com document number: 84787 2 rev. 1.0, 21-apr-10 VEMI353A-HAF vishay semiconductors 3-channel emi-filter with esd-protection application note with the VEMI353A-HAF 3 different signal or data lines can be filtered and clamped to ground. due to the different clamping levels in forward and reverse dire ction the clamping behavior is bi directional and as ymmetric (bias). the 3 independent emi-filter are placed between pin 1 and pin 6 pin 2 and pin 5, and pin 3 and pin 4. they all are connected to a common ground pin 7 on the backside of the package. each filter is symmetrical so that all ports (pin 1 to 6) can be used as input or output. the circuit diagram of one emi-filter-channel shows two identica l z-diodes at the input to ground and the output to ground. these z-diodes are characterized by the breakthrough voltage level (v br ) and the diode capacitance (c d ). below the breakthrough voltage level the z-diodes can be considered as capacitors. together with these capacitors and the line resistance r s between input and output the device works as a low pass filter. low frequency signals (f < f 3db ) pass the filter while high frequency signals (f > f 3db ) will be shorted to ground through the diode capacitances c d . each filter is symmetrical so that both ports can be used as input or output. 19420 19421 19424 l1 in l2 in l3 in l1 out l2 out l3 out 7 1 2 3 6 5 4 21060 r s out (pin 4, 5, 6) in (pin 1, 2, 3) gnd (pin 7) c d c d
document number: 84787 for tec hnical questions, contact: emifilter@vishay.com www.vishay.com rev. 1.0, 21-apr-10 3 VEMI353A-HAF 3-channel emi-filter with esd-protection vishay semiconductors typical characteristics (t amb = 25 c, unless otherwise specified) fig. 1 - esd discharge current wave form acc. iec 61000-4-2 (330 /150 pf) fig. 2 - 8/20 s peak pulse current wave form acc. iec 61000-4-5 electrical characteristics VEMI353A-HAF (t amb = 25 c, unless otherwise specified) parameter test conditions/re marks symbol min. typ. max. unit protection paths number of chan nels which can be protected n channel - - 3 channel reverse stand off voltage at i r = 1 a each input to pin 2 v rwm 5--v reverse current at v r = 5 v each input to pin 2 i r --1a reverse break down voltage each input to pin 2 at i r = 1 ma v br 6--v pos. clamping voltage at i pp = 1 a applied at the input, measured at the output; acc. iec 61000-4-5 v c-out --7.8v at i pp = i ppm = 4 a applied at the input, measured at the output; acc. iec 61000-4-5 v c-out --8v neg. clamping voltage at i pp = - 1 a applied at the input, measured at the output; acc. iec 61000-4-5 v c-out - 1 - - v at i pp = i ppm = - 4 a applied at the input, measured at the output; acc. iec 61000-4-5 v c-out - 1.2 - - v input capacitance at v r = 0 v; f = 1 mhz c in -60-pf at v r = 2.5 v; f = 1 mhz c in -37-pf esd-clamping voltage at 30 kv esd-pulse acc. iec 61000-4-2 v cesd -7.5- v line resistance measured between input and output; i s = 10 ma r s 27 30 35 cut-off frequency v in = 0 v; measured in a 50 system f 3db - 100 - mhz 0 % 20 % 40 % 60 % 80 % 100 % 120 % - 10 0 10 20 30 40 50 60 70 80 90 100 time (ns) discharge current i esd rise time = 0.7 ns to 1 ns 53 % 27 % 20557 0 % 20 % 40 % 60 % 80 % 100 % 010203040 time (s) i ppm 20 s to 50 % 8 s to 100 % 20548
www.vishay.com for technical questions, contact: emifilter@vishay.com document number: 84787 4 rev. 1.0, 21-apr-10 VEMI353A-HAF vishay semiconductors 3-channel emi-filter with esd-protection fig. 3 - typical forward current i f vs. forward voltage v f fig. 4 - typical input voltage v in vs. input current i in fig. 5 - typical peak clamping voltage v c vs. peak pulse current i pp fig. 6 - typical capacitance c d vs. reverse voltage v r fig. 7 - typical small signal transmission (s21) at z o = 50 0.001 0.01 0.1 1 10 100 0.5 0.6 0.7 0.8 0.9 1 v f (v) i f (ma) 21094 0 1 2 3 4 5 6 7 8 0.01 0.1 1 10 100 1000 10 000 output not connected i in (a) v in (v) 21096 0 2 4 6 8 10 12 14 0123456 i pp (a) v c (v) 21095 measured acc. iec 61000-4-5 (8/20 s - wave form) input clamping voltage output clamping voltage v c 0 10 20 30 40 50 60 70 012345 v r (v) c d (pf) 21093 f = 1 mhz - 40 - 35 - 30 - 25 - 20 - 15 - 10 - 5 0 1 10 100 1000 10 000 frequency (mhz) transmission (s21) (db) 21092 v input = 5 v v input = 0 v measured in a 50 system
document number: 84787 for tec hnical questions, contact: emifilter@vishay.com www.vishay.com rev. 1.0, 21-apr-10 5 VEMI353A-HAF 3-channel emi-filter with esd-protection vishay semiconductors package dimensions in millimeters (inches): llp75-7l 1.05 (0.041) 0.5 (0.020) 0.95 (0.037) heat sink 0.3 (0.012) 0.2 (0.008) 0.3 (0.012) 0.2 (0.008) 0.3 (0.012) 0.2 (0.008) 0.55 (0.022) 0.45 (0.018) 0.6 (0.024) 0.25 (0.010) 0.6 (0.024) 0.54 (0.021) 0.05 (0.002) 0 (0.000) 0.15 (0.006) 1.65 (0.065) 1.55 (0.061) 1.65 (0.065) 1.55 (0.061) pin 1 marking 0.5 (0.020) 0.5 (0.020) 0.3 (0.012) 0.3 (0.012) 0.15 (0.006) 0.15 (0.006) 0.5 (0.020) 0.5 (0.020) 1 (0.039) 0.25 (0.010) solder resist mask solder pad document no.:s8-v-3906.02-014 (4) 20500 created - date: 04. april 2006 foot print recommendation: 1 (0.039) 1 (0.039)
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