low capacitance quad array for esd protection h t t p : / / w w w . w e i t r o n . c o m . t w w e i t r o n ESDA6V8AW5 1/3 01-feb-08 l e a d( p b) - f r ee p b peak pulse power 20 watts breakdown voltage 6.8 volts sot-353 features: main applications: general description: * instrumentation equipment * serial and parallel ports * microprocessor based equipment * notebooks, desktops, servers * cellular and portable equipment * esd protection: iec61000?4?2: level 4 milstd 883c ? method 3015?6: class 3 * low leakage current < 1a * power dissipation: 380 mw * small sc?88a smt package * low capacitance * provides protection for esd industry standards: iec 61000, hbm * protects the line against transient voltage conditions in either this integrated transient voltage suppressor device (tvs) is designed for applications requiring transient overvoltage protection. it is intended for use in sensitive equipment such as computers, printers, business machines, communication systems, medical equipment, and reliable protection for four separate lines using only one package. these devices are ideal for situations where board space is at a premium. 1 2 3 5 4 sot-353 outline dimensions unit:mm 1 2 3 b a a1 c l q1 5 4 e e d he dim a a1 b c d e e he q1 l min 0.80 0.00 0.10 1.80 1.15 1.80 0.65 ref max 1.10 0.10 0.30 0.10 0.25 2.20 1.35 2.40 0.10 0.30 0.2 ref sot-353
h t t p : / / w w w . w e i t r o n . c o m . t w w e i t r o n ESDA6V8AW5 6h 2/3 device marking item marking eqivalent ci r cuit diagram 1 5 2 4 3 ESDA6V8AW5 01-feb-08 maximum r a tings (t a = 2 5 c un le ss o t h er w i s e n o t ed ) rating symbol v alue unit p e a k p owe r d i s s ip a t i o n 8 2 0 s e c doubl e e x pone n t ia l w a v e f or m (n o t e 1 ) p p k 20 w s t ead y s t a t e p owe r ? 1 diod e (n o t e 2 ) p d 380 mw t herma l r e s i s t anc e ? junction?to?ambient a b o v e 2 5 c , der a te r j a 327 3.05 c/w mw/ c o per a t in g j u n ct io n t emper a t ur e ran g e t j ? 4 0 t o + 1 2 5 c st orag e t emper a t ur e ran g e t s t g ? 5 5 t o + 1 5 0 c lea d s olde r t emper a t ur e ? m a x imu m 1 0 s e c ond s dur a t i o n t l 260 c maxim u m r a t ing s ar e t ho s e v alue s be y on d whi c h de v i c e damag e c a n o c c u r . m a x imu m r a t in g s applie d t o t h e d e v i c e ar e ind i v idua l s t r e s s lim i t value s (n o t norma l oper a t in g c ond i t ions ) an d ar e n o t v ali d s imu l t aneo u s l y . if t h e s e lim i ts ar e e x c eede d , d e v i c e f u n c t iona l oper a t io n i s n o t implie d , dama g e ma y o c cur and reliabil i ty m a y be a f f e ct e d . 1 . no n ? rep e t i t i v e c urre n t pu l s e pe r f igur e 1 . 2 . o n l y 1 diod e unde r pow e r . f o r al l 4 diode s unde r pow e r , p d wil l b e 25 % . mou n t e d o n f r 4 boar d w i t h mi n pa d . electrica l characteristics (t a = 2 5 c un le s s o t h er w i s e n o t ed ) characteristic symbol min t yp max unit b rea k dow n v o l t ag e ( i t = 1 m a ) (n o t e 3 ) v b r 6.4 6.8 7.1 v leakag e curre n t ( v r w m = 5 . 0 v ) i r ? ? 1.0 a clampin g v o l t ag e 1 ( i p p = 1 . 6 a, 8 2 0 sec w aveform) v c ? ? 13 v m a x imu m p ea k p u l s e curre n t ( 8 2 0 sec w aveform) i p p ? ? 1.6 a j u n ct io n cap a c i t an c e ? ( v r = 0 v , f = 1 m h z) ? ( v r = 3 . 0 v , f = 1 mh z ) c j ? ? 12 6.7 15 9.5 pf 3 . v b r i s me a s ure d a t puls e t e s t c urre n t i t .
figu re 1 . p ul se w id t h 100 10 1 1 1 0 10 0 1000 t, ti m e ( s) p p k , peak sur ge powe r ( w) figure 2. power derating curve t a , a mb ie n t te mp e r a t ur e ( c) 150 125 100 75 50 25 0 90 80 70 60 50 40 30 20 10 0 100 1 10 % of r a ted power or i p p figu re 3 . reverse l eaka g e vers us t emperature 0.16 0.02 0 0 0 1 0 8 0 0 6 ? t , te m pe r a t ur e ( c) i r , re ve r se le akage ( a) 0 6 0 2 ? 0 4 ? 40 20 0.04 0.06 0.08 0.10 0.12 0.14 figu re 4 . ca p ac i ta n c e 14 12 10 8 6 4 2 0 6 3 2 1 0 bia s vo l t a ge ( v) t a = 2 5 c typi c a l c a p a c i t a nc e (p f) 1 mhz frequency 4 5 6 v v f , fo r w ard vo lt age (v) 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.1 0.01 0.001 1 i f , fo r w ard current (a) t a = 2 5 c figu re 5 . 8 20 s p ul se w avef o r m 100 90 80 70 60 50 40 30 20 10 0 0 2 0 4 0 6 0 80 t, ti m e ( s) % of p eak p ul se curren t t r p ul se wi d t h ( t p ) is d efi ne d a s t h a t poi n t w her e t h e p e ak curren t d e c a y = 8 s hal f v a lu e i r s m / 2 @ 20 s t p p e ak v a lu e i r s m @ 8 s figure 6. forward v oltage 3/3 ESDA6V8AW5 01-feb-08 http://www.weitron.com.tw weitron
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