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high accu racy , 3-ph ase active energ y metering ic a tt7030a a tt7030a user manual date: 2005-03-28 rev: 1.04 h ttp ://www .actio n s .co m .cn page 1 of 17 rev 1.04 www.datasheet.co.kr datasheet pdf - http://www..net/
high accu racy , 3-ph ase active energ y metering ic a tt7030a table of contents 1 introducti on 1.1 features????????????????????????.?3 1.2 functional description?? ?????????????????4 1.3 block diagram?????????????????????.?4 1.4 pin definition???????????????????????5 1.5 application diagr am????????????????????8 2 system functions 2.1 power supply monitor???????????????????9 2.2 adc?????????????????????????..?9 2.3 active power measure??????????????????..10 2.4 active energy me asure??????????????????.10 2.5 power direction judgement????????????????...1 1 2.6 v o lt age-depreciat i on detecting???????????????1 1 2.7 hardware port detecting??????????????????1 1 2.8 applic ation for 3-phase 3- wire and 3-phase 4-wire???..???1 1 2.9 energy pulse output???????????????????..12 3 calibration 3.1 calibration elem ent s..???????????????????14 3.2 design inst ance????????????????????..?15 3.3 reference design circuit diagram??????????????15 4 electrical characteristics 4.1 electrical p a rameter????????????????????16 4.2 packaging information???????????????????17 h ttp ://www .actio n s .co m .cn page 2 of 17 rev 1.04 www.datasheet.co.kr datasheet pdf - http://www..net/
high accu racy , 3-ph ase active energ y metering ic a tt7030a chapter 1 introduction 1.1 features ? high accuracy , less than 0.1% over a dynamic ra nge of 1000 t o 1; ? active energy measure accord with 1s, 0.5s, su pport s iec 687/103 6, gb/t 17215-19 98 ; ? provide active ene rgy m easurement; ? provide ne gative po wer indication revp w hen any one p hase active pow er is negative; ? provide ne gative phase indication w hen 3-ph ase combined po wer is negative, which ca n be used for stopping re ve r s e situation negp; ? provide ph ase-cut indication p a /pb/pc; ? provide calibration pulse output for active ener gy: cf1; ? provide pul se output f1/f2 for driving el ectromechanical counter and stepp er motor; ? select able calculating mode for 3 ph ase energ y combined; ? adjust able meter const a nt; ? s t artup current 0.1%; ? accurate measure for active pow e r w h ich cont ain 21st harmoni c; ? provide gai n and phase compensation, non linea r compensation for little current; ? supplies resist ance network calibration; ? comp atible with 3-phase 3-wire a nd 3-ph ase 4-wi re; ? single +5v powe r suppl y; ? qfp44 p a ckage. h ttp ://www .actio n s .co m .cn page 3 of 17 rev 1.04 www.datasheet.co.kr datasheet pdf - http://www..net/
high accu racy , 3-ph ase active energ y metering ic a tt7030a 1.2 functional description a tt7030a is a high accuracy 3-phase active electronic energ y metering chip which is suit able for 3 - phase 3- wir e and 3-p has e 4-wire. a tt7030a in corporates 6 second-ord e r sigma- delt a adcs, reference volt age circuitry and the entir e signal processing requi r ed calculating digit a l power . a tt7030a is suit able for measuring a c tive power; it provides phase-cut indication, negative po wer indicatio n , and negati v e phase ind i cation for 3-phase combined po we r . a tt7030a pr ovides pulse output which can be used directly to calibrate err o r . a tt703 0a provid es low freque ncy pulse output which can be used to drive electromechanical counter .. a tt7030a support s resist ance network calibration. the system error can be calibrated to suf f ice class 1s via ad justing resist ance network. the pulse for active ener g y (cf1) can be connected directly to st anda rd me ter for calibration. refer to chapter 3 fo r det ailed calibration metho d . power suppl y monitor circuitry sa feguards a tt703 0a ? s performance. 1.3 block diagram d vssfo u "%$ w pmubh f "%$ 1px fs .fbtv sjoh 4jh obm 1 spdf ttjoh $jsdv jusz 4 jhob m 4b nqmj oh 1ibt fdv u efuf dujo h &of shz 'sfr vfod z dpow fsuf s 7 1 7 / 7 / 7 1 7 1 7 1 7 1 7 1 7 / 7 / 7 / 7 / $' 7$$ 1# 1" 1$ 7 pmubh f 3fg fsfo df 3 &'06 5 3 &'$" 1 5 jnjo h $ pousp m 04$0 04$* 3fw q 1p xfs nbob hfnfo u 4& - 3 &4&5 7%% "7$ $ (/% "( /% 4* ( "55"#mp dl%jbhsbn ' ' 1v mtf (fof sbup s 4 4 4$ ' 46 . /&( h ttp ://www .actio n s .co m .cn page 4 of 17 rev 1.04 www.datasheet.co.kr datasheet pdf - http://www..net/
high accu racy , 3-ph ase active energ y metering ic a tt7030a 1.4 pin definition 1 2 3 4 5 6 7 8 9 10 11 33 32 31 30 29 28 27 26 25 24 23 44 43 42 41 40 39 38 37 36 35 34 12 13 14 15 16 17 18 19 20 21 22 3&4&5 4*( 71 7/ 7 % % 1 $ 7/ 3&'065 3&'$"1 71 71 7/ 4&- (/% 7 1 " ( / % " 7 $ $ 4 7 / 7 1 7 / 4 7 $ $ 4$' 5&45 7 1 7 / " 7 $ $ "(/% 7%% /$ $' ' ' 1 " 1 # 4 6 . 3 & 7 1 ( / % 7 $ $ 0 4 $ * 0 4 $ 0 /&(1 /$ "55" pin n a m e i/o d e s c r i p t i o n 1 reset i a tt7030a reset, low active. internall y pull-high 47k resist an ce. 2 sig o sig i s low le vel when normal work. 3,4 v1p/v1n i analog input s for a phase current ch annel. the maximum input signal level is 1.5v . both input s have intern a l esd protection circuitr y and in addition a n over volt age of 6v can be sust ained on these in put s without risk of perman ent d a mage. 5 r e f c a p o internal reference volt age, 2.4v , can be connected to extern al r e ference volt age. this pin should be decou ple d with a 1 0 f and a 0.1uf cap a citor to agnd. 6,7 v3p/v3n i analog inp u t s for b phase current channel. th e maximum input signal level is 1.5v . both input s have intern a l esd protection circuitr y and in addition a n over volt age of 6v can be sust ained on these in put s without risk of perman ent d a mage. 8 agnd agnd the anal og grou nd is the gro und r e ference fo r all analog circuitry . h ttp ://www .actio n s .co m .cn page 5 of 17 rev 1.04 www.datasheet.co.kr datasheet pdf - http://www..net/
high accu racy , 3-ph ase active energ y metering ic a tt7030a 9,10 v5p/v5n i analog input s for c phase current channel. the maximum input signal level is 1.5v . both input s have intern a l esd protection circuitr y and in addition a n over volt age of 6v can be sust ained on these in put s without risk of perman ent d a mage. 1 1 refout o refere nce volt age output, act s a s bia s for input signals . 12 a v cc a v cc analog p o we r suppl y , the supply volt age shoul d be maint a ined at 5v5
for specified oper ation. this pin s hould be decoup led with a 10f and a 0.1uf cap a citor to agnd. 13,14 v2p/v2n i analog inp u t s for a phase volt age ch annel. the maximum input signal level is 1.5v . both input s have intern a l esd protection circuitr y and in addition a n over volt age of 6v can be sust ained on these in put s without risk of perman ent d a mage. 15 agnd agnd the anal og grou nd is the gro und r e ference fo r all analog circuitry . 16,17 v4p/v4n i analog input s for b phase volt age channel. the maximum input signal level is 1.5v . both input s have intern a l esd protection circuitr y and in addition a n over volt age of 6v can be sust ained on these in put s without risk of perman ent d a mage. 18 a v cc a v cc analog p o we r suppl y , the supply volt age shoul d be maint a ined at 5v5
for specified oper ation. this pin s hould be decoup led with a 10f and a 0.1uf cap a citor to agnd. 19,20 v6p/v6n i analog inp u t s for c phas e volt age ch annel. the maximum input signal level is 1.5v . both input s have intern a l esd protection circuitr y and in addition a n over volt age of 6v can be sust ained on these in put s without risk of perman ent d a mage. 2 1 , 2 2 s 0 / s 1 i select coef ficient for output frequency . internally pull-hig h 300 k resist ance. 2 3 g n d g n d digit a l groun d . 24 test i t e st pin, should tie to gnd norm a lly . internally pull-low 4 7 k resist ance. 2 5 s c f i select coef ficient for output frequ ency , cooperate wi th s0/s1. internally pull-h i gh 300k resist ance. h ttp ://www .actio n s .co m .cn page 6 of 17 rev 1.04 www.datasheet.co.kr datasheet pdf - http://www..net/
high accu racy , 3-ph ase active energ y metering ic a tt7030a 26 sel i system mod e selection, h i gh for 3-pha se 4-wire, low for 3-pha se 3-wire. internally p u ll-h i gh 300k resist ance. 27 cf1 o active energ y pulse outp u t. 2 8 n c - - - no c o n n e c t i o n 2 9 , 3 0 f 1 / f 2 o low freq ue ncy active ener gy puls e output denotes 3-ph ase avera ge active power . be used for driving el ectromechan ical counter . 31 negp negp: when 3-ph as e active p o wer is negative, output high level. when 3- phase active power is positive, output low level. 3 2 n c - - - no c o n n e c t i o n 3 3 , 3 9 v d d v d d 3.0v power output. this pin should b e decouple d with a 10f a nd a 0.1uf cap a citor to gnd. 34,41 vcc vcc digit a l power suppl y , the supply volt a ge shoul d be maint a ined at 5v5%. this pin should be decouple d with a 10f a nd a 0.1uf cap a citor to gnd. 35 p a o phase a power-cut i ndication, output s high level when p hase a volt age loss. 36 pb o phase b po wer-cut i ndic a tion, output s high level when p hase b volt age loss. 37 pc o phase c power-cut i ndication, output s high level when p hase c volt age loss. 38 sum i 3-ph ase combined en erg y addition mode select. internally pul l-low 300k re sist ance. 0: denotes a b solute addit i on in 3-p h a s e 4-wire mode, algeb raic addition in 3-phase 3-wire mode. 1: denotes a l gebraic ad di tion in 3-ph a s e 4-wire mode, absolute addition in 3-phase 3-wire mode. 40 revp o goes high when any one phase active power is negative, go es low whe n all phase active po wer is positive. 42 osci i system oscillator input. oscillator fre quency is 24.576mhz. 43 osco o system oscillator output. 4 4 g n d g n d digit a l groun d . note: in application cir c uitr y schemat ics, both analog gr ound and d i git a l ground (pin 8, 15, 2 3 , and 44) must be shor t connected to guarantee equipotential. h ttp ://www .actio n s .co m .cn page 7 of 17 rev 1.04 www.datasheet.co.kr datasheet pdf - http://www..net/
high accu racy , 3-ph ase active energ y metering ic a tt7030a 1.5 application diagram "55" )jhiqsfdjtjpo qibtf bdujwffofshz nfbtvsjoh"4*$ ' 1$ 04 $0 0 4 $ * *" 6" .) [ 3& 71 $' %jbhsbn "55"uz qjdbmbqqmjdbujp oejbhsbn , , , , 3 $ $ $ $ 71 7/ 71 7/ 3fgpvu *# 6# *$ 6$ 4b nf u p dpo of du p g qi bt f " 4b nf u p dpo of du p g qi bt f " / . , /& (1 ' 1" 1# 4$ ' 4 4 4& - 4 6 . fm fdus pn fd iboj dbm dp vou fs h ttp ://www .actio n s .co m .cn page 8 of 17 rev 1.04 www.datasheet.co.kr datasheet pdf - http://www..net/
high accu racy , 3-ph ase active energ y metering ic a tt7030a chapter 2 sy stem functions 2.1 pow e r suppl y monitor a tt7030a cont ains an o n -chi p powe r supply monitor . the analo g supply (a vc c ) is c ontinuously monitored by the a tt7030a. if the supply is le ss than 4v5%, the a tt7030 a will be reset. this is useful to ensure correct device st art-up at power- o n and powe r - down. the powe r suppl y monitor has built in h y steresis and filt ering. th is gives a high degre e of immunity to false trigger d ue t o noisy su pplies, as illustrated in the figure 2-1. the power s upply should be decoupled so that the ripple at a v cc does not exceed 5 v 5% for normal operatio n. "7 $$ 7 7 7 sf tf u sf tf u xp sl jo h sf tf u u jnf % jbhs bn qpxf stv qqm znp ojup s 2.2 adc there are 6 adcs in a t t7030a, all of which use fully dif f erential volt age input s, with a maximum input volt age o f 1.0v . for prop er ap plication, we sugges t that vo lt age channe l input set at 0 . 5v and current channel input (at base current ?ib) set at 0.1v . the typical value of refer ence volt age (refcap and refout) is 2.4v . block diagram of adc in a tt7030a: 4*( ."%&- 5" .0 %6-"503 4*( ."%&- 5" .0 %6-"503 4*( ."%&- 5" .0 %6-"503 4*( ."%&- 5" .0 %6-"503 4*( ."%&- 5" .0 %6-"503 4*( ."%&- 5" .0 %6-"503 %&$*. "5*0/ '*- 5&3 '*3 '*-5&3 %&$*. "5*0/ '*- 5&3 %&$*. "5*0/ '*- 5&3 %&$*. "5*0/ '*- 5&3 %&$*. "5*0/ '*- 5&3 %&$*. "5*0/ '*- 5&3 '*3 '*-5&3 '*3 '*-5&3 '*3 '*-5&3 '*3 '*-5&3 '*3 '*-5&3 3fhjtuf s pvuqvu 3fgfsfo df wpmub hf % jbhsb n "% $jou fsobm djsd vjusz cmpd lejb hsbn t y pical input circuitry: h ttp ://www .actio n s .co m .cn page 9 of 17 rev 1.04 www.datasheet.co.kr datasheet pdf - http://www..net/
high accu racy , 3-ph ase active energ y metering ic a tt7030a $vss fou joq vu 7pmu bhf joq vu 7 1 7 / 7 1 7 /
"n" 77 $ , , , , , , , , o' o' o' o' 3&'065 %jbhsbn uzqjd bmjoqvudjs dvjusz 2.3 active pow e r measure calculation o f active powe r for each phase is achieved by multiplication, addition an d digit a l filtering, which act on input volt age an d curr ent signals. the over-sa m pling of sigma-delt a a dc guar ante e s sampling rate of input signals, and the sampled dat a co nt ains information for up to 21st harmonic. and according to the formula p= = ? n n n i n u n 0 ) ( ) ( 1 , the active po wer cont ains info rmation for up to 21st harmonic. the measure element s of acti ve power is illustrated in the nether figure, 3-phas e combined active powe r pt=pa+pb+pc. %j hj u b m )1 ' %j hj u b m )1 ' 1i bt f dps sf duj po 1px fs hb jo d pnq fo tbu jpo &of sh z db md vmb uj po $ vss fo u t b n qmj oh wbm vf 7 pmu bh f tbn qm joh wbm vf 1 pxf s db md vmb uj po &q b 1b %jbh sbnbdujwfqpxfsn fbtvsfnfou q ibt fd pn cjo fe bd uj wf qp xfs 1u 1b 1c 1 d 2.4 active energ y measure calculation of active energy is achieve d via inst ant aneo us activ e power integrating to the time. the formula of single phase active energy: = dt t p ep ) ( the 3-ph ase combined active energ y c ould be summated according to algebr aic addition mod e or absolute additi on mode, which could be set. algebraic ad dition mode: ept=ep a+epb+epc absolute add ition mode: ept=|ep a |+ |ep b |+|epc| h ttp ://www .actio n s .co m .cn page 10 of 17 rev 1.04 www.datasheet.co.kr datasheet pdf - http://www..net/
high accu racy , 3-ph ase active energ y metering ic a tt7030a %jbh sbn b dujwf fofshz nfbtv sfnfo u &qb &qc &qd &qu&q b&qc &qd ps &qu ]&qb] ]&qc] ]&qd] &ofshz beeju jponp efbm hfcsbj dpsb ctpmvu f 1vmt f dsfbu fs $' &of shz dbmdv mbujpo &of shz dbmdv mbujpo &of shz dbmdv mbujpo 1b 1c 1d 2.5 pow e r direction judgement a tt7030a supplies real time active power dir e ction indication. negative power indication revp: if a n y one phase active power is negative, revp would outp u t high level, g oes low whe n 3 phase po wer is positive. negative po wer indicatio n negp: if 3-ph ase combined active powe r is negative, negp would output high l e vel, go es low whe n 3-p h a se combined active pow er is positive. noticed that negp be e f fectual only in alge braic mode. if we select absolute ad dition mode, negp would outp u t low level a ll the time . 2.6 v o lt age-depreciation detecting a tt7030a can detect a/b/c 3 phase vo lt age-d epreciati on st atus basing o n configured th reshold volt a ge. in 3-phase 4 - wire mod e , threshold volt age is about 50mv for volt age chan nel input. in 3-ph ase 3-wi re mode, threshold volt age is about 300mv for volt age chann el input. v o lt age-de pr eciation st atus could be indica ted by powe r-cut indication p a /pb/pc. power-cut in dication p a /pb/pc outp u t hi gh level denotes a/b/c 3-phase volt age is less than configured thre shold volt age, output low level denot e s a/b/c 3-phase volt age is higher tha n configure d thr e shold volt age. 2.7 hardw a re port detecting a tt7030a can detect ha rdwa re port automat ically . system will reset when hard w ar e port changes . a tt7030a h a s external input port: s0/s1/scf , sel, and sum. 2.8 application for 3-phase 3-w i re and 3-phase 4-w i re in 3-phase 4 - wire mod e , a tt7030a u s es 3 element measure m ent method, 3-phase combined po wer calculated formula is: p 4 = c c b b a a i u i u i u ? ? ? ? ? ? + + in 3-phase 3 - wire mod e , a tt7030a u s es 2 element measure m ent method, 3-phase combined po wer calculated formula is: p 3 = c cb a ab i u i u ? ? ? ? + in 3-phase 3 - wire mod e , phase b channel do esn? t t a ke p a rt in p o wer me asur ement. only phase a and phase c cha nnel t a ke p a rt in power measurement. h ttp ://www .actio n s .co m .cn page 1 1 of 17 rev 1.04 www.datasheet.co.kr datasheet pdf - http://www..net/
high accu racy , 3-ph ase active energ y metering ic a tt7030a 2.9 energy pulse ou tput a tt7030a p r ovid es two kinds of pulse output: hig h -frequ ency pulse output cf1 an d low-freq uenc y pulse outp u t f1/f2. this is energy pulse illustr a ted diagram: bd uj wf qp xfs n fbt vs fnf ou fo fs hz qvm tf ds fbu fs $' e jwj ef e g s f rvf odz ' ' ejw je fe gsf rv fod z w pmu bh f 6 dv ss fou * bdu jw fq px fs 1 'pv u@ 1 $' ' ' e jbhs bn fof shz qvmt fpv uqvu in power m easurement signal proce ssing circuitry , switched volt age an d current signal multiply to get hold of inst ant aneous powe r , whic h integrating to the time to turn into ener gy . a/b/c phase en ergy is summated a ccording to alg e b raic additio n mode o r absolute ad dition mode , through switching th e result to frequency signal and divide d-freq u ency , then w e get hold of hi gh-freq ue ncy ener gy pulse output signal which could be used to calibra te. on this found ati on, divided -frequ e n cy again ca n get hold o f low-freq uenc y pulse outp u t signal which could be used to drive stepper motor . underside is divide d - freque ncy sketch map when hi gh-fre quency outp u t const ant is 64. the pulse-wid th of energy p u lse output is 90ms. when pulse cycle is less than 180ms, ener gy pulse output duty cycle is 1 : 1. $' 'p vu u n t u u u )' sf r %jbhsbn $'qvmtfpvuqvu ujnjoh unde rside is divide d-freq u ency sketch map whe n lo w-freq uency output cons t ant is 16. the pulse-wi d th of energ y pulse output (f1/f2 ) is 275ms. when pulse cycle is less than 550ms, ener gy pulse out put duty cycle is 1 : 1. h ttp ://www .actio n s .co m .cn page 12 of 17 rev 1.04 www.datasheet.co.kr datasheet pdf - http://www..net/
high accu racy , 3-ph ase active energ y metering ic a tt7030a $' ' ' u u u u u u nt u n t u nt -'s fr %jbhsb n ''qvm tfpvuqv uujnjo h h ttp ://www .actio n s .co m .cn page 13 of 17 rev 1.04 www.datasheet.co.kr datasheet pdf - http://www..net/
high accu racy , 3-ph ase active energ y metering ic a tt7030a chapter 3 calibration 3.1 calibration element s a tt7030a supplies resist ance networ k calibra tion, which calibr a tes the energy meter via ad justing resist ance v a lue in volt age samp ling chann el. the system active erro r can b e calibrated to suf f i c e cla ss 1s/0.5s. s t art-up and creep: when curre nt input is rated current (ib), the sampling volt age is 0.1v , a tt7030 a can st art-up at 0.1%ib and pr event s cr eeping at 0.0 8 %ib. single-phase high-frequenc y ou tput cf formula : v o lt age channel inpu t: v u curr ent chan nel input: v i a tt7030a a dc gain: g = 0.648 single-ph ase high-freq ue ncy output: cf = 1600*v u *v i*g 2 /hfreq single-ph ase low-frequ en cy output: lf = cf/lfreq hfreq is decided by scf/ s1/s0 list 3-1: s c f s 1 s 0 h f r e q l f r e q 0 0 0 2 5 6 1 6 0 0 1 1 2 8 1 6 0 1 0 1 2 8 8 0 1 1 1 2 8 4 1 0 0 6 4 1 6 1 0 1 6 4 8 1 1 0 6 4 4 1 1 1 reserved when v u =0.5v , v i =0.1v , the relation in cf and scf/s1/s0: list 3-2: s c f s 1 s 0 h f r e q l f r e q c f ( h z ) 0 0 0 2 5 6 1 6 0 . 1 3 1 2 0 0 1 1 2 8 1 6 0 . 2 6 2 4 0 1 0 1 2 8 8 0 . 2 6 2 4 0 1 1 1 2 8 4 0 . 2 6 2 4 1 0 0 6 4 1 6 0 . 5 2 4 9 1 0 1 6 4 8 0 . 5 2 4 9 1 1 0 6 4 4 0 . 5 2 4 9 1 1 1 reserved h ttp ://www .actio n s .co m .cn page 14 of 17 rev 1.04 www.datasheet.co.kr datasheet pdf - http://www..net/
high accu racy , 3-ph ase active energ y metering ic a tt7030a design advisement: ? w e should calculate cf basin g on rated vo lt age un (unit: volt), rated current ib (unit: amp) and selected calibration const ant (unit: imp/kwh). then select hfreq in list 3-2 according o n cf . cf calculated formula: cf = ec*un * ib/36000 00 ? when selected electromechanica l counter ratio is n:1, we could calculate lfreq according to formula: lfreq=ec*2/n basing on hfreq and l f req, we can sele ct scf/s0/s1 accor d ing to list 3- 2. 3.2 design inst ance if rated volt age: un = 220 v rated current: ib = 5a calibratio n const ant: 1600 imp/kwh ele c tromechanical counter ratio: 400:1 then cf=ec*un*ib/36 0000 0= 16 00 *220*5/3 600 000=0.4 889 hz input adc curre nt and volt age signal is 0. 1v and 0.5v in rated current and rated volt age. according to cf and list 3-2, we select hfreq=6 4 . lfreq=ec *2/n=16 00*2/4 00=8 scf/s1/s0=101 3.3 reference desi gn circuit diagram h ttp ://www .actio n s .co m .cn page 15 of 17 rev 1.04 www.datasheet.co.kr datasheet pdf - http://www..net/
high accu racy , 3-ph ase active energ y metering ic a tt7030a chapter 4 electrical characteristics 4.1 electrical p a rameter t e st object minimum typical max unit t e st condition v c c 4 . 7 5 5 5 . 2 5 v v d d 3 . 0 v refere nce volt age 2.3 2.4 2.6 v refere nce power tc 30 ppm input volt age range 1.5 v dif f erence input vpp voh(f1,f2) 4 . 5 v i o h = 1 0 m a vol(f1,f2) 0 . 5 v i o l = 1 0 m a voh(cf1, revp , negp) 4.5 v ioh=5ma vol(cf1, r evp , negp) 0.5 v iol=5ma logic input high-level 2.5 vmin logic input low-le vel 0.8 vmax logic output high-le vel 4.5 vmin ioh=2ma logic output low-le vel 0.5 vmax iol=2ma refere nce volt age out put resist ance: minimum load resist ance maximum load cap a cit a n c e 2 130 100 ? k ? pf positive power sup p ly current 2 8 m a vdd=3.0 v vcc=5v adc bit digit 16 bit adc sampling speed 3.2 khz adc dyn a mic range 88 db adc wh o l e harmo nic distortion - 9 5 d b adc channe l disturbance -92 db cryst a l frequency 24.576 mhz t e mperature range -40 85 h ttp ://www .actio n s .co m .cn page 16 of 17 rev 1.04 www.datasheet.co.kr datasheet pdf - http://www..net/
high accu racy , 3-ph ase active energ y metering ic a tt7030a 4.2 packaging information packaging information: 44pin qf p (quad flat package 10x10) note 1. controlling dimension ---mill imeter . 2. each lead centerline is locat ed within 0.12mm (0.005inch) of it s true po sition (t .p .) at maximum material condition n e c c o d e p 44g b - 80- 3b 4- 4 e i aj c o de wei g h t ( r ef er en ce v a l u e) 0.54g it e m ' g i + / q s r3 3 3. 0 m a x 0 . 019 m a x p2 . 7 0. 1 0. 1 0. 1 0 . 004 0. 004 m d 13. 6 0. 4 0. 031 ( t . p . ) a 13. 6 0. 4 b 10. 0 0. 2 c 10. 0 0. 2 - 1. 8 0. 2 h , m i lli m e te r s i n c h e s 0. 8 ( t . p . ) 1. 0 1. 0 h ttp ://www .actio n s .co m .cn page 17 of 17 rev 1.04 www.datasheet.co.kr datasheet pdf - http://www..net/

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