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delphi nc20 series non-isolated point of load dc/dc power modules: 12v i n, 0.9v -5.0v out, 20a the delphi nc20 se rie s , 1 2 v input, si ng le output, no n - isol ated p o in t of load dc/ dc conve r ters are the latest of fering from a world lead er in power sy ste m s tech nolo g y and manufa c turin g D del t a electro n ics, inc. the nc20 serie s ope rate s from a 12v nominal inp u t, provides up to 20a of po we r in a vertical or ho ri zont al mounted th ro ugh-hole p a ckag e and the o u tp ut can b e re sisto r- or vol t age-t r imme d from 0.9vd c to 5.0vdc. it provides a very cost ef fe ctive point of load sol u tion. with cre a tive desi gn techn o log y and optimization of compone nt place m ent, these conv erters po ssess out st an ding ele c tri c al an d thermal perfo rman ce, as well a s extremely high reliability unde r highly stre ssful operating con d itions. optio n s v e rtical or horizont al mounted negative on/ o f f logic applica t i o ns dat a com distributed po w e r architectures servers and w o r kst ations lan/w a n applications dat a processing applications featur es high ef ficiency : 91% @ 1 2 v i n, 5v/20a out size: 30.5x27.9 x 1 1 .4mm (1.20?1.1 0?0.4 5?) - - v e rtical 30.5x27 .9x1 2.9m m (1.20?1.1 0?0.5 1?) - - ho rizont al v o lt age and resistor-based t r im no minimum load required output volt age pr ogrammable f r o m 0.9vdc to 5.0vdc via external resi stors fixed f r equenc y operation input uvl o , out put ocp , scp power goo d outp u t signal remote on/ o f f (default: positive) iso 9001, t l 90 00, iso 14 001, qs 9000, ohsas 1800 1 certified manufact u ring facility ul/cul 60950 ( u s & canada ) r e cognized, and tuv (en 609 50) ce rtified d a t a s h eet d s _ n c1 2 s 2 0 a _020 72 00 7
ds_nc1 2s2 0 a_020 720 0 7 2 technical specifica t i o ns ( a m b ien t t e mp erature=25 c, m i nim u m air f lo w = 200lfm, v in =12 v dc, no mi nal v out unle ss o t he rw ise specified. ) pa r a m e t e r notes an d conditions n c 1 2s 0a0v /h 20 min . t y p . ma x . u n it s a b solute m a xi mu m ra tings inpu t v o lt ag e 14 vdc operati ng t e mpera t ure (v e r ti cal) w i th ap propria te air flow and dera t ing , see fig . 33 -40 130 c operati ng t e mpera t ure (horizont al) w i th ap propria te air flow and dera t ing , see fig . 39 -40 125 c s t orage t e mperatu r e -40 125 c inpu t/ou t pu t isola t i on v o lt age non-isola t ed na v i n p u t c h ar ac t e r i s t i c s operati ng inpu t v o l t age 10.2 12 13.8 v inpu t under -v ol t a g e lo cko ut t u rn-on v o l t age th reshold 9.0 v t u rn-o f f v o lt age th reshold 7.5 v lockout hy stere s is v o lt age 1.5 v max i mu m inpu t cur r ent 100% lo ad, 10 .2v i n, 5 v ou t 10.65 a no-load inpu t curr ent v i n=12v , v o ut=0 .9 v 68 ma of f conv erter inpu t current remote off 8 ma inpu t re flected-rip p le curren t refer to figure 31. 180 ma inpu t v o lt ag e rippl e rejection 120 hz 45 db output ch a r a c teri sti c s outpu t v o lt age adj u stmen t range 0.9 5.0 v outpu t v o lt age set point w i th a 1 . 0% trim re sistor s -3.0 +3.0 % outpu t v o lt age reg u lation ov er load io=io , min to io ,max (ex c luding sold ere d pin s ) -1.3 +1.3 % ov er line vi n = vi n , m i n t o vi n , m a x -0.2 +0. 2 % outpu t v o lt age rip p le and noise 5hz to 20mhz ban dw id th peak- t o-pe ak full load , 10 0nf ceramic, 10f t ant al um 50 mv rms full load , 10 0nf ceramic, 10f t ant al um 20 mv outpu t cur r ent ran ge 0 20 a outpu t v o lt age ov e r-shoo t at s t ar t-up v i n=12v , t u rn on 1 % outpu t v o lt age und e r-shoo t at pow e r-of f v i n=12v , t u rn off 100 mv outpu t dc cur r ent- l imit in ception hiccup mode 21 a outpu t shor t-c i rcu i t c u rre nt hiccup mode dyn a m i c ch a r a c teri sti c s out dy namic load respon se 12v in, 10f t a n & 1f ceramic load cap, 10a/ s posi tiv e s t ep chan ge in ou tput curre nt 50% io,m ax to 75% io ,m ax 100 mv negativ e s t ep cha nge in ou tpu t curr ent 75% io,m ax to 50% io ,m ax 100 mv sett ing t i m e to 10 % o f pe ak d e v i t a tio n settling to be w i thin regula t ion band ( v o +/- 3%) 200 s t u rn-on t r an sien t s t art - up t i me, from on/of f cont rol from enable high to 10% o f v o 10 ms s t art-up t i me, by input pow er from v i n=12v to 1 0 % o f v o 10 ms minimum output c a p a cit a n c e ex: al- p oly m er ps a serie s (6.3v/6 80f , esr 7 m ? max ) 680 max i mu m outpu t s t artup cap a ci tiv e l oad full load 1 1560 f minimum inpu t cap a cit a n c e ex : oscon (16v /2 70f , esr 18 m ? max . ) 270 f effi ci ency vo = 0 . 9 v v i n=12v , io=20 a 75 % vo = 1 . 2 v v i n=12v , io=20 a 78 % vo = 1 . 8 v v i n=12v , io=20 a 84 % v o =2.5 v v i n=12v , io=20 a 8 6 % vo = 3 . 3 v v i n=12v , io=20 a 88 % v o =5.0 v v i n=12v , io=20 a 9 1 % fe a t ure ch a r acteri s ti cs sw itching freq uen cy fix ed 200 khz on/off control posi tiv e logic (in t er nally pulled high) logic high module on (or leav e th e pin open ) 2.4 5.5 v logic low module o f f 0 0.8 v general specif ica t ions mtbf t e lcordia sr-332 issue1 method 1 ca se3 a t 50 c 1.28 m hour s we i g ht 16.5 g rams ds_nc1 2s2 0 a_020 720 0 7 3 electri cal characteristi cs cur ves 0 10 20 30 40 50 60 70 80 90 013 4578 9 1 1 1 2 1 3 1 5 1 6 1 7 1 9 2 0 output current (a ) efficiency (%) 10 . 2 12 13. 8 0 10 20 30 40 50 60 70 80 90 100 0 1 3 4 5 7 8 9 1 11 21 3 1 5 1 6 1 7 1 92 0 outpu t cu rre nt (a ) efficiency (%) 10 . 2 12 13. 8 figure 1 : converter ef ficie n c y vs. output current (0.9v outp u t volt age) figure 2 : converter ef ficie n c y vs. output current (1.2v outp u t volt age) 0 10 20 30 40 50 60 70 80 90 100 0 1 3 4 5 7 8 9 1 11 21 3 1 5 1 6 1 7 1 92 0 outpu t cu rre nt (a ) efficiency (%) 10 . 2 12 13. 8 0 10 20 30 40 50 60 70 80 90 100 0 1 3 4 5 7 8 9 1 11 21 3 1 5 1 6 1 7 1 92 0 outpu t cu rre nt (a ) efficiency (%) 10 . 2 12 13. 8 figure 3 : converter ef ficie n c y vs. output current (1.8v outp u t volt age) figure 4 : converter ef ficie n c y vs. output current (2.5v outp u t volt age) 0 10 20 30 40 50 60 70 80 90 100 0 1 3 4 5 7 8 9 1 11 21 3 1 5 1 6 1 7 1 92 0 outpu t cu rre nt (a ) efficiency (%) 10 . 2 12 13. 8 0 10 20 30 40 50 60 70 80 90 100 0 1 3 4 5 7 8 9 1 11 21 3 1 5 1 6 1 7 1 92 0 outpu t cu rre nt (a ) efficiency (%) 10 . 2 12 13. 8 figure 5 : converter ef ficie n c y vs. output current (3.3v outp u t volt age) figure 6 : converter ef ficie n c y vs. output current (5.0v outp u t volt age) ds_nc1 2s2 0 a_020 720 0 7 4 electri cal characteristi cs cur ves (con.) figure 7 : outp ut rippl e & nois e at 12v i n , 0.9 v /20a o u t figure 8 : outp ut rippl e & nois e at 12v i n , 1.2 v /20a o u t figure 9 : outp ut rippl e & nois e at 12v i n , 1.8 v /20a o u t figure 1 0 : output ripp le & no i s e at 12v i n , 2.5v/20a out figure 1 1 : output ripp le & no i s e at 12v i n , 3.3v/20a out figure 1 2 : output ripp le & no i s e at 12v i n , 5.0v/20a out ds_nc1 2s2 0 a_020 720 0 7 5 electri cal characteristi cs cur ves (con.) figure 1 3 : t u rn on de lay ti me at 12v in, 0.9v/ 20a o u t ch2:v i n ch 3:v out ch4:pw r g d figure 1 4 : t u r n on delay tim e remote on/of f, 0.9v/20a out ch2:enab le ch3:v out c h4: pw rgd figure 1 5 : t u rn on de lay ti me at 12v in, 2.5v/ 20a o u t ch2:v i n ch 3:v out ch4:pw r g d figure 1 6 : t u r n on delay tim e at remote on/of f, 2.5v/20a out ch2: enable ch3:v out c h4: pw rgd figure 1 7 : t u rn on de lay ti me at 12v in, 5.0v/ 20a o u t ch2:v i n ch 3:v out ch4:pw r g d figure 1 8 : t u r n on delay tim e at remote on/of f, 5.0v/20a out ch2: enable ch3:v out c h4: pw rgd ds_nc1 2s2 0 a_020 720 0 7 6 electri cal characteristi cs cur ves (con.) figure 1 9 : t y p i cal trans ient re spons e to step loa d cha nge at 10a/s from 5 0 % to 75% and 75% to 50 % of io_max at 12v i n , 0.9v out figure 2 0 : t y p i cal trans ient re spons e to step loa d cha nge at 10a/s from 5 0 % to 75% a n d 75% to 50% of io_max at 12v i n , 1.2v out figure 2 1 : t y p i cal trans ient re spons e to step loa d cha nge at 10a/s from 5 0 % to 75% and 75% to 50 % of io_max at 12v i n , 2.5v out figure 2 2 : t y p i cal trans ient re spons e to step loa d cha nge at 10a/s from 5 0 % to 75% a n d 75% to 50% of io_max at 12v i n , 5.0v out ds_nc1 2s2 0 a_020 720 0 7 7 fea t ures descriptions enable (on/off) the enable (on/of f) in put allows external ci rcuitry to pu t the nc co nverter into a low po we r di ssi p a tio n (sle ep ) mode. po sitive (active - hi gh) e n able is availabl e as st an dard. positive enable (active-h i gh) unit s of the nc se ries are turned on if th e enable p i n is hig h or fl oating. pullin g the pin low will turn of f the unit. with the active high funct i on, the output is guarantee d to turn on if the enable pin i s driven above 2.4v . the out put will turn of f if the enable pin volt age i s pulled b e low . 8 v . the enable input can be driven in a variety of ways as sho w n in fig u re s 24, 25 a nd 26. if the enable sig nal come s from t he pri m ary si de of the circuit, the enable can be d r ive n throug h either a bipol ar signal tran si stor (fig. 24 ) or a logic g a te (fig. 25 ). if the ena ble si gnal come s from the second ary side, th en a n opto-co uple r or other i s olatio n devices m u st be u s e d to bring t he sig nal across the vo lt age isolation (plea s e see figure 26). nc6a/15a/20a vout ground trim enable ground vin figure 2 4 : enabl e input driv e circuit for nc series nc6a/15a/20a vout ground trim enable ground vin 5v figure 2 5 : enabl e inp u t drive circuit usin g lo gic gate. n c 6a /1 5a /2 0 a v out gr ou n d tr i m en ab l e g r oun d vi n figure 2 6 : enable i nput driv e circuit exa m ple w i th isolation. design considera t ions the nc2 0 a is a sin g le p h a s e and volt age mode cont rol l ed buck to polo g y . block dia g ram of the co n v erter is sh o w n in figure 23. t he output ca n be trimm e d in the ra n ge o f 0.9vdc to 5.0 v dc by a re si stor fro m t r i m pin to grou nd. the co nverte r can be turn ed on/off by remote co ntrol. positive on/ of f (enable pin) l ogic implies th at the conve r ter dc output is e n a b led when thi s si gnal i s d r i v en high (greater than 2.4v) or floating an d d i sabl ed when the sign al is driv en low (b elo w 0.8v). neg a tive on/of f l o g ic is optional a nd coul d also be orde red. the convert e r provides a n open coll e c tor sign al called powe r goo d . the power g ood si gnal i s pulled lo w whe n output is not within 1 0% of v out or enable is o f f . the conve r te r can p r ote c t it self by e n tering hi ccup m ode again s t over curre n t and short circuit co ndition. also, the conve r ter will shut do wn when an ove r volt age p r ote c tion is dete c ted. figure 2 3 : block diagr am safet y considerations it is re com m ende d that the u s er t o provide a ver y fast-a cting type fuse in the input line for safety . t he o u tput volt age set-p o int and th e output curren t in the appli c ation coul d define t he cu rrent rat i ng of the fuse. ds_nc1 2s2 0 a_020 720 0 7 8 the nc1 5 a/20a mod u le has a trim range of 0.9v to 5.0v . the trim resi stor eq uation for the nc6a/ nc1 5 a/ nc20a is : fea t ures descriptions input under-v olt age l ockout the in put un der-volt a g e l o ckout p r eve n t s the c onverte r from being damag ed wh ile operatin g when the inpu t volt age i s to o lo w . the l o ckout o c curs betwe en 7.0 v to 8.0v . over-cu rre nt and short-circuit protection the nc seri es modul es have non-l a tchin g over-curren t and sho r t-circuit prote c tio n circuitry . when over cu rren t con d ition o ccurs, th e mo d u le go es into the no n-lat c hing hiccup mo d e . when t he over-current con d ition is remove d, the module will re sume n o rm al operation. a n over current conditio n is detected by measu r in g the volt age drop across the hi gh-side m o sfet . the volt age drop acro ss the mosf et is also a function o f the mosfet? s rds(on ). rd s(on) i s af fecte d by tempera t ure, therefore am bient temperature will af fect the current limit ince ption poi nt. please se e the electri c al cha r a c teri stics for det ail s of the ocp fun c t i on. the d e tectio n of the rd s(on ) of the high si de m o sfe t also a c t s as an over tem peratu r e p r ot ection sin c e high temperature will cause the rds(on) of the mosfe t to increa se, eve n tually trigge ri ng over-current prote c tion . output v o lt age progra m ming the output volt age of the nc se rie s is trimmable by con n e c ting a n external re sistor b e twe e n the trim pin a nd output grou n d as sho w n figure 27 and the typical trim resi sto r value s are sho w n in figure 28. the output can also be set b y an extern al volt age con n e cted to trim pin as sho w n in figure 29. 9 . 0 1170 ) ( ? = ? vout rs v out is the ou tput volt age setpoint rs i s the re si st an ce b e twe en t r im a nd grou nd rs valu es sh ould not be le ss tha n 280 ? outp ut v o lt ag e rs ( ? ) +0.9 v open + 1 .2 v 3.92k + 1 .5 v 1.96k + 1 .8 v 1.3k + 2 .5 v 732 + 3 .3 v 487 +5.0 v 287 figure 2 8 : t y p i cal trim resistor values nc6a/15a/20a vout ground trim enable ground vin 1.3k rt rs vt figure 2 9 : output volt ag e trim w i th volt age source t o use volt age trim, the trim equation for the nc6a/nc15a/ nc20a is (pleas e refer to fig. 29) : ) 9 . 0 ( 17 . 1 ) 17 . 1 3 . 1 ( ) ( ? ? ? = ? vout rs vt rs k rt v out is the de sire d output volt age vt is the external trim volt a ge rs i s the re si st an ce b e twe en t r im a nd grou nd (i n k ? ) rt is the re si stor to be defin ed with the tri m volt age (in k ? ) below is a n example a bout usi ng this volt ag e trim equatio n : example if vt = 1.25v , desi r ed v o ut = 2.5v and rs = 0.71 5k ? ? = ? ? ? = ? k vout rs vt rs k rt 51 . 12 ) 9 . 0 ( 17 . 1 ) 17 . 1 3 . 1 ( ) ( nc6a/15a/20a rs vout ground trim enable ground vin figure 2 7 : t r i m mi ng output v o lt a ge ds_nc1 2s2 0 a_020 720 0 7 9 fea t ures descriptions pow e r good the convert e r provides a n open coll e c tor sign al called powe r good. this output pin use s po sitive logic and is open coll ecto r. this po we r go od o u tpu t is abl e to sin k 5ma and set high whe n t he outp u t is within 10 % o f output set poi nt. the po we r g ood si gnal i s pulled lo w when outp u t is not within 1 0% of v out or enable is o f f . current sin k capability the nc se rie s co nverte rs are abl e to sink current as well as fun c tion a s a current source. it is a b le to sin k th e full output cu rren t at any output voltage up to and inclu d ing 2.5v. this fe ature all o ws t he nc seri es fit into any voltage terminatio n a pplication. v o lt age margining adjustment output volt ag e margi n adj usting can b e impleme n ted in the nc m o d u les by con n e cting a re si stor , r ma rgin -u p , from the t r im pin to the groun d for margini n g up the output volt age. also, the output volt age can be adju s ted l o we r b y con n e c t i ng a resi st o r , r ma rgin -d o w n , from th e t r im pin to the volt age sou r ce vt. fig u re 3 0 sh ows the ci rcui t config uratio n for output volt age ma rginin g adju s tment. nc6a/15a/20a vout ground trim enable ground vin rmargin-dow n rs vt rmargin-up figure 3 0 : circuit config urati on for outp u t voltag e margi n i n g paralleling nc06/nc1 5 /nc20 conve r ters do n o t h a ve built-in curren t sharing (paralleling) ability. hence, paral leling of multiple nc06/nc1 5 /nc20 convert e rs i s not re commen ded. output cap acit ance there is no output ca paci t or on the nc se rie s mod u les. hen c e, a n ex ternal output cap a cito r i s required fo r st able operation. fo r nc20 mo d u les, a n exte rnal 6.3v/68 0 f low esr ca p a citor (fo r example, osco n al-polyme r ps a seri es) is req u ired fo r st a b l e operation. it is importa nt to place s these l o w e s r ca pa citors a s clo s e to the load a s po ssible in orde r to get impro v ed dynamic re spo n se and better voltage reg u lat i on, esp e ci ally wh en the l oad current is large . several of t hese low esr ca pacito r s coul d be used t ogethe r to fu rthe r lowe r the esr. please refer to individual datash eet for the maxi mum allowed start-up loa d capa citan c e fo r ea ch nc se rie s as i t is varied b e tween serie s . reflected ripple curre nt and output ripple and noise meas urement the mea s u r e m ent set-u p outlined in fi gure 3 1 has been use d for both input reflect ed/ terminal ripple cu rrent and output volt ag e ripple a n d noise me asurem ent s on nc seri es conve r ters. cs= 270 f * 1, l t est= 1.4 h, ci n= 270 f * 1, co ut= 680 f *1 figure 3 1 : input reflected rip p le/ cap a c i tor rippl e curre nt and output volt a ge rippl e an d no is e me asur e m en t setup for nc2 0 ds_nc1 2s2 0 a_020 720 0 7 10 thermal consi d era t i o n therm a l man ageme n t is a n importa nt part of the syst em desi gn. to e n su re p r op er, reliabl e ope ration, suffici e n t cooli ng of th e po we r mod u le is nee de d over th e e n tire temperature range of the modul e. co n v ection co olin g is usu a lly the dominant mo d e of heat tran sfer. hen c e, the choi ce of eq uipment to chara c te rize the thermal p e rf orma nce of the po wer m odule i s a wind tunnel. thermal t esting setup delta? s dc/ dc po we r module s are chara c te rize d in heated verti c al wind tunn els t hat simu late the thermal environ ment s encou ntered in most electroni cs equipm ent. this type of equipm ent comm only u s e s vertically mou n ted circuit card s in cabi n e t rac ks in w h ich the power mo dule s are m o unted. the followi ng figure shows the wind tunne l cha r a c teri zati on setup. th e powe r mod u le is mount ed on a test pwb and is vertically po sitioned within the wind tun nel. the hei ght of this fan du ct is co nst antly kept at 25.4mm (1? ? ). thermal derating heat can b e remove d by increa sing airflow over the module. t o enha nce system reli abi lity, the powe r module sho u l d alway s be operated bel o w the maxim u m operating te mperature. if the tempera t ure exce ed s the maximum module temperat ure, reli ability of the unit may be affected. 11 ds_nc1 2s2 0 a_020 720 0 7 thermal cur ves (nc12s0a0v20) modu le a ir f l o w 17 .5 (0. 6 9 ? ) 50 .8 (2 .0? ) fa c i n g p w b pw b ai r v e l o ci t y an d amb i en t temperature meas ur ed be lo w the mo d u le 35 ( 1 .3 8?) note: wind t unnel t e st setup f i g u re dimensi ons are in m i llimeters and (inches) figure 3 2 : win d tunne l test setup figure 3 3 : t e mp eratur e mea s ure m e n t locati on * t he allow e d max i mu m hot s pot temperatur e is define d at 130 nc12s0a0v 20 (standard) o u tput c u r r ent v s . am bi ent tem per ature and ai r vel o c i t y @ vou t =5v ( e i t her o r i entati on) 0 4 8 12 16 20 2 5 30 35 40 45 50 55 60 65 70 75 80 85 a m bi e n t temper atur e ( ) output c u rr ent ( a ) 1 00lf m nat u ral c o nv ec ti o n 20 0lfm 30 0lfm 40 0lf m 50 0lf m 60 0lf m figure 3 4 : output curre nt vs. amb i ent temper ature a nd ai r velocity@ v o u t= 5v(either orient atio n) nc12s0a0v 20 (standard) o u tput c u r r ent v s . am bi ent tem per ature and ai r vel o c i t y @ v out =3.3v ( e i t he r o r i entati on) 0 4 8 12 16 20 2 5 30 35 40 45 50 55 60 65 70 75 80 85 a m bi e n t temper atur e ( ) output c u rr ent ( a ) 1 00lf m nat u ral con v e c t i on 20 0lf m 30 0lf m 400 lfm 500 lfm 600 lfm figure 3 5 : output curre nt vs. amb i ent temper ature a nd ai r velocity@ v out = 3 .3v(either orient atio n) nc12s0a0v 20 (standard) o u tput c u r r ent v s . am bi ent tem per ature and ai r vel o c i t y @ v out =1.8v ( e i t he r o r i entati on) 0 4 8 12 16 20 2 5 30 35 40 45 50 55 60 65 70 75 80 85 a m bi e n t temper atur e ( ) o u tput cu rr ent ( a ) 10 0lfm nat u ral c o nv ec ti o n 20 0lf m 300 lfm 400 lfm 500 lfm 600 lfm figure 3 6 : output current vs. ambi ent tempe r ature an d air velocity@ v out = 1 .8v(either orient atio n) figure 3 7 : output curre nt vs. amb i ent temper ature a nd ai r velocity@ v out = 0 .9v(either orient atio n) nc12s0a0v 20 (standard) o u tput c u r r ent v s . am bi ent tem per ature and ai r vel o c i t y @ v out =0.9v ( e i t he r o r i entati on) 0 4 8 12 16 20 2 5 30 35 40 45 50 55 60 65 70 75 80 85 a m bi e n t temper atur e ( ) o u tput cu rr ent ( a ) 1 00lf m nat u ral con v e c t i on 20 0lfm 30 0lf m 40 0lf m 50 0lf m 2s2 0 a_020 720 0 7 12 ds_nc1 thermal cur ves (nc12s0a0h20) 1 9 (0 . 7 5?) mo dule a ir f l ow 9.5 ( 0 .37? ) 5 0 .8 (2 .0 ? ) fa c i n g p w b pw b ai r ve loc i t y and a m bi ent temp era t ure me asu r e d b e low the m o du l e note: wind t unnel t e st setup f i g u re dimensi ons are in m i llimeters and (inches) figure 3 8 : win d tunne l test setup figure 3 9 : t e mp eratur e mea s ure m e n t locati on * t he allow e d max i mu m hot s pot temperatur e is define d at 125 nc12s0a0h 20 (standard) o u tput c u r r ent v s . am bi ent tem per ature and ai r vel o c i t y @ vou t =5v ( e i t her o r i entati on) 0 4 8 12 16 20 2 5 30 35 40 45 50 55 60 65 70 75 80 85 a m bi e n t temper atur e ( ) output c u r r ent (a ) 1 00l fm nat u ral con v ec ti on 200 lfm 300 lfm 400 lfm 500 lfm 600 lfm figure 4 0 : output curre nt vs. amb i ent temper ature a nd ai r velocity @ v out = 5 v(either orient atio n) figure 4 3 : output curre nt vs. amb i ent temper ature a nd ai r velocity@ v out = 0 .9v(either orient atio n) nc12s0a0h 20 (standard) o u tput c u r r ent v s . am bi ent tem per ature and ai r vel o c i t y @ v out =0.9v ( e i t he r o r i entati on) 0 4 8 12 16 20 2 5 30 35 40 45 50 55 60 65 70 75 80 85 a m bi e n t temper atur e ( ) output c u r r ent (a ) 1 00l fm nat u ral con v ec ti on 200 lfm 300 lfm 400 lfm figure 4 2 : output current vs. ambi ent tempe r ature an d air velocity@ v out = 1 .8v(either orient atio n) nc12s0a0h 20 (standard) o u tput c u r r ent v s . am bi ent tem per ature and ai r vel o c i t y @ v out =1.8v ( e i t he r o r i entati on) 0 4 8 12 16 20 2 5 30 35 40 45 50 55 60 65 70 75 80 85 a m bi e n t temper atur e ( ) output c u r r ent (a ) 1 00l fm nat u ral con v ec ti on 200 lfm 300 lfm 400 lfm 500 lfm figure 4 1 : output curre nt vs. amb i ent temper ature a nd ai r velocity@ v out = 3 .3v(either orient atio n) nc12s0a0h 20 (standard) o u tput c u r r ent v s . am bi ent tem per ature and ai r vel o c i t y @ v out =3.3v ( e i t he r o r i entati on) 0 4 8 12 16 20 2 5 30 35 40 45 50 55 60 65 70 75 80 85 a m bi e n t temper atur e ( ) output c u r r ent (a ) 1 00l fm nat u ral con v ec ti on 200 lfm 300 lfm 400 lfm 500 lfm 600 lfm ds_nc1 2s2 0 a_020 720 0 7 13 mechanical dra w ing v e r t i c a l h o r i z o n t a l ds_nc1 2s2 0 a_020 720 0 7 14 p a rt numbering system n c 1 2 s 0 a 0 v 20 p n f a produc t series inpu t v o lt ag e number of outp u t s outp ut v o lt ag e mount ing outp ut current on/off logic pin le ngth optio n co de nc- non-isolated converter 12- 10.2~13.8v s- single output 0a0- program mable h- ho rizont al v- ve r t i c a l 20- 20a p- positive n- nega tive n- 0.14 ? r- 0.1 1 8 ? f- ro hs 6/6 (lead f r ee ) a- s t andard function model list model name packaging input v o lt ag e outpu t v o lt a g e outpu t cu rr ent efficiency 12v in @ 100 % load nc12s0a0v20p nf a v e rtical 10.2 ~ 13.8vdc 0.9 v ~ 5.0vdc 20a 91% (5. 0 v) nc12s0a0h2 0 p n f a horizont al 10.2 ~ 13.8vdc 0.9 v ~ 5.0vdc 20a 91% (5. 0 v) c o nt ac t : www .delt a . com.tw/dcd c us a : t e lepho ne: east coast: (888) 33 5 82 01 w e st coast: (888) 33 5 82 08 f a x: (97 8 ) 656 396 4 email: dcd c @ delt a -c orp.co m europe : t e lepho ne: + 4 1 31 99 8 53 1 1 f a x: + 41 31 9 9 8 53 53 email: d c dc@ d e l t a -e s.tw a s i a & the re st of w o r l d: t e lepho ne: + 8 86 3 45 26 10 7 x6 22 0 f a x: + 886 3 4 5 134 85 email: dcd c @ delt a .com.t w w arra nt y delt a of fers a two (2) year limited warran ty . complete warra n ty information is liste d on our web site or is available upo n requ est from delt a. information fu rnished by delt a is beli e ve d to be accurate and reli ab le. however , no re spo n si bi lity is assum e d by delt a for it s u s e, n o r for a n y infrin gement s of p a tent s or oth e r rig h t s of third p a rties, whi c h may result from it s use. no li cen s e is g r anted by implicatio n o r otherwise un der any p a ten t or p a t ent ri g h t s of delt a. delt a re se rve s the right to revise the s e spe c ification s at any time, without noti c e . |
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