CAT tap Digital Potentiometer (POT) with Buffered Wiper

Transcription

1 32 tap igital Potntiomtr (POT) with Buffrd Wipr sription Th CT5112 is a singl digital POT dsignd as an ltroni rplamnt for mhanial potntiomtrs. Idal for automatd adjustmnts on high volum prodution lins, thy ar also wll suitd for appliations whr quipmnt rquiring priodi adjustmnt is ithr diffiult to ass or loatd in a hazardous or rmot nvironmnt. Th CT5112 ontains a 32-tap sris rsistor array onntd twn two trminals and. n up/down ountr and dodr that ar ontrolld y thr input pins, dtrmins whih tap is onntd to th wipr,. Th CT5112 wipr is uffrd y an op amp that oprats rail to rail. Th wipr stting, stord in non-volatil mmory, is not lost whn th dvi is powrd down and is automatially ralld whn powr is rturnd. Th wipr an adjustd to tst nw systm valus without ffting th stord stting. Wipr-ontrol of th CT5112 is aomplishd with thr input ontrol pins, CS, U/, and INC. Th INC input inrmnts th wipr in th dirtion whih is dtrmind y th logi stat of th U/ input. Th CS input is usd to slt th dvi and also stor th wipr position prior to powr down. Th digital POT an usd as a uffrd voltag dividr. For appliations whr th potntiomtr is usd as a 2-trminal varial rsistor, plas rfr to th CT5114. Th uffrd wipr of th CT5112 is not ompatil with that appliation. Faturs 32-position inar Tapr Potntiomtr Non-volatil PROM Wipr Storag; Buffrd Wipr ow Powr CMOS Thnology Singl Supply Opration: 2.5 V 6.0 V Inrmnt Up/own Srial Intrfa Rsistan Valus: 10 k, 50 k and 100 k vailal in PIP, SOIC, TSSOP and MSOP Pakags Ths vis ar P-Fr, Halogn Fr/BFR Fr and ar RoHS Compliant ppliations utomatd Produt Caliration Rmot Control djustmnts Offst, Gain and Zro Control Tampr-proof Calirations Contrast, Brightnss and Volum Controls Motor Controls and Fdak Systms Programmal nalog Funtions CS V CC INC U/ SOIC 8 V SUFFIX CS 751B PIP 8 SUFFIX CS 646 Pin Nam INC U/ GN CS V CC PIN CONFIGURTIONS INC U/ GN 1 1 MSOP 8 Z SUFFIX CS 846 TSSOP 8 Y SUFFIX CS 948 PIP (), SOIC (V), MSOP (Z) TSSOP (Y) (Top Viws) PIN FUNCTION Inrmnt Control Up/own Control GN Potntiomtr High Trminal Ground Funtion Buffrd Wipr Trminal Potntiomtr ow Trminal Chip Slt Supply Voltag V CC CS ORRING INFORMTION S dtaild ordring and shipping information in th pakag dimnsions stion on pag 10 of this data sht. Smiondutor Componnts Industris, C, 2013 Jun, 2013 Rv Puliation Ordr Numr: CT5112/

2 V CC U/ INC CS Control and Mmory + + Powr On Rall GN Figur 1. Funtional iagram Figur 2. ltroni Potntiomtr Implmntation Pin sription INC: Inrmnt Control Input Th INC input (on th falling dg) movs th wipr in th up or down dirtion dtrmind y th ondition of th U/ input. U/: Up/own Control Input Th U/ input ontrols th dirtion of th wipr movmnt. Whn in a high stat and CS is low, any high to low transition on INC will aus th wipr to mov on inrmnt toward th trminal. Whn in a low stat and CS is low, any high-to-low transition on INC will aus th wipr to mov on inrmnt towards th trminal. : High nd Potntiomtr Trminal is th high nd trminal of th potntiomtr. It is not rquird that this trminal onntd to a potntial gratr than th trminal. Voltag applid to th trminal annot xd th supply voltag, V CC or go low ground, GN. : Wipr Potntiomtr Trminal (Buffrd) is th uffrd wipr trminal of th potntiomtr. Its position on th rsistor array is ontrolld y th ontrol inputs, INC, U/ and CS. : ow nd Potntiomtr Trminal is th low nd trminal of th potntiomtr. It is not rquird that this trminal onntd to a potntial lss than th trminal. Voltag applid to th trminal annot xd th supply voltag, V CC or go low ground, GN. and ar ltrially intrhangal. CS: Chip Slt Th hip slt input is usd to ativat th ontrol input of th CT5112 and is ativ low. Whn in a high stat, ativity on th INC and U/ inputs will not afft or hang th position of th wipr. vi Opration Th CT5112 oprats lik a digitally ontrolld potntiomtr with and quivalnt to th high and low trminals and quivalnt to th mhanial potntiomtr s wipr. Thr ar 32 availal tap positions inluding th rsistor nd points, and. Thr ar 31 rsistor lmnts onntd in sris twn th and trminals. Th wipr trminal is onntd to on of th 32 taps and ontrolld y thr inputs, INC, U/ and CS. Ths inputs ontrol a fiv-it up/down ountr whos output is dodd to slt th wipr position. Th sltd wipr position an stord in nonvolatil mmory using th INC and CS inputs. With CS st OW th CT5112 is sltd and will rspond to th U/ and INC inputs. HIGH to OW transitions on INC will inrmnt or drmnt th wipr (dpnding on th stat of th U/ input and fiv-it ountr). Th wipr, whn at ithr fixd trminal, ats lik its mhanial quivalnt and dos not mov yond th last position. Th valu of th ountr is stord in nonvolatil mmory whnvr CS transitions HIGH whil th INC input is also HIGH. Whn th CT5112 is powrd-down, th last stord wipr ountr position is maintaind in th nonvolatil mmory. Whn powr is rstord, th ontnts of th mmory ar ralld and th ountr is st to th valu stord. With INC st low, th CT5112 may dsltd and powrd down without storing th urrnt wipr position in nonvolatil mmory. This allows th systm to always powr up to a prst valu stord in nonvolatil mmory. 2

3 Tal 1. OPRTION MOS INC CS U/ Opration High to ow ow High Wipr toward High to ow ow ow Wipr toward High ow to High X Stor Wipr Position ow ow to High X No Stor, Rturn to Standy X High X Standy C H R WI C W C Figur 3. Potntiomtr quivalnt Ciruit Tal 2. BSOUT MXIMUM RTINGS Paramtrs Ratings Units Supply Voltag V CC to GN 0.5 to +7 V Inputs CS to GN 0.5 to V CC +0.5 V INC to GN 0.5 to V CC +0.5 V U/ to GN 0.5 to V CC +0.5 V to GN 0.5 to V CC +0.5 V to GN 0.5 to V CC +0.5 V to GN 0.5 to V CC +0.5 V Oprating mint Tmpratur Commrial ( C or Blank suffix) 0 to 70 C Industrial ( I suffix) 40 to +85 C Juntion Tmpratur +150 C Storag Tmpratur 65 to +150 C ad Soldring (10 s max) +300 C Strsss xding Maximum Ratings may damag th dvi. Maximum Ratings ar strss ratings only. Funtional opration aov th Rommndd Oprating Conditions is not implid. xtndd xposur to strsss aov th Rommndd Oprating Conditions may afft dvi rliaility. Tal 3. RIBIITY CHRCTRISTICS Symol Paramtr Tst Mthod Min Typ Max Units V ZP (Not 1) S Susptiility MI ST 883, Tst Mthod V I TH (Nots 1, 2) ath-up JC Standard m T R ata Rtntion MI ST 883, Tst Mthod Yars N N nduran MI ST 883, Tst Mthod ,000,000 Stors 1. This paramtr is tstd initially and aftr a dsign or pross hang that affts th paramtr. 2. ath-up prottion is providd for strsss up to 100 m on addrss and data pins from 1 V to V CC + 1 V 3

4 Tal 4. C CTRIC CHRCTRISTICS (V CC = +2.5 V to +6 V unlss othrwis spifid) Symol Paramtr Conditions Min Typ Max Units POWR SUPPY V CC Oprating Voltag Rang V I CC1 Supply Currnt (Inrmnt) V CC = 6 V, f = 1 MHz, I W = V CC = 6 V, f = 250 khz, I W = I CC2 Supply Currnt (Writ) Programming, V CC = 6 V 1000 I SB1 (Not 4) Supply Currnt (Standy) CS = V CC 0.3 V U/, INC = V CC 0.3 V or GN V CC = 3 V OGIC INPUTS I IH Input akag Currnt V IN = V CC 10 I I Input akag Currnt V IN = 0 V 10 V IH1 TT High vl Input Voltag 4.5 V V CC 5.5 V 2 V CC V V I1 TT ow vl Input Voltag V V IH2 CMOS High vl Input Voltag 2.5 V V CC 6 V V CC x 0.7 V CC V V I2 CMOS ow vl Input Voltag 0.3 V CC x 0.2 V POTNTIOMTR CHRCTRISTICS R POT Potntiomtr Rsistan 10 vi 10 k 50 vi vi 100 Pot. Rsistan Tolran 20 % V RH Voltag on pin 0 V CC V V R Voltag on pin 0 V CC V Rsolution 1 % IN Intgral inarity rror I W SB N iffrntial inarity rror I W SB R OUT Buffr Output Rsistan 0.05 V CC V WB 0.95 V CC, V CC = 5 V I OUT Buffr Output Currnt 0.05 V CC V WB 0.95 V CC, V CC = 5 V 1 3 m TC RPOT TC of Pot Rsistan 300 ppm/ C TC RTIO Ratiomtri TC 20 ppm/ C C RH /C R /C RW Potntiomtr Capaitans 8/8/25 pf f Frquny Rspons Passiv ttnuator, 10 k 1.7 MHz V WB(SWING) Output Voltag Rang I OUT 100, V CC = 5 V 0.01 V CC 0.99 V CC 3. This paramtr is tstd initially and aftr a dsign or pross hang that affts th paramtr. 4. ath-up prottion is providd for strsss up to 100 m on addrss and data pins from 1 V to V CC + 1 V 5. I W = sour or sink 6. Ths paramtrs ar priodially sampld and ar not 100% tstd. 4

5 Tal 5. C TST CONITIONS V CC Rang Input Puls vls Input Ris and Fall Tims Input Rfrn vls 2.5 V V CC 6 V 0.2 V CC to 0.7 V CC 10 ns 0.5 V CC Tal 6. C OPRTING CHRCTRISTICS (V CC = +2.5 V to +6.0 V, V H = V CC, V = 0 V, unlss othrwis spifid) Symol Paramtr Min Typ (Not 7) Max Units t CI CS to INC Stup 100 ns t I U/ to INC Stup 50 ns t I U/ to INC Hold 100 ns t I INC OW Priod 250 ns t IH INC HIGH Priod 250 ns t IC INC Inativ to CS Inativ 1 s t CPH CS slt Tim (NO STOR) 100 ns t CPH CS slt Tim (STOR) 10 ms t IW INC to V OUT Chang 1 5 s t CYC INC Cyl Tim 1 s t R, t F (Not 8) INC Input Ris and Fall Tim 500 s t PU (Not 8) Powr-up to Wipr Stal 1 ms t WR Stor Cyl 5 10 ms 7. Typial valus ar for T = 25 C and nominal supply voltag. 8. This paramtr is priodially sampld and not 100% tstd. 9. MI in th.c. Timing diagram rfrs to th minimum inrmntal hang in th W output du to a hang in th wipr position. CS INC t CI t I t CYC t IH t IC (stor) t CPH 90% 90% 10% U/ t I t I t F t R t IW MI (3) Figur 4..C. Timing 5

6 PCKG IMNSIONS PIP 8, 300 mils CS 646 ISSU SYMBO MIN NOM MX PIN # 1 INTIFICTION B BSC TOP VIW B SI VIW N VIW Nots: (1) ll dimnsions ar in millimtrs. (2) Complis with JC MS

7 PCKG IMNSIONS SOIC 8, 150 mils CS 751B ISSU O SYMBO MIN NOM MX BSC h PIN # 1 INTIFICTION θ 0º 8º TOP VIW h 1 θ SI VIW N VIW Nots: (1) ll dimnsions ar in millimtrs. ngls in dgrs. (2) Complis with JC MS

8 PCKG IMNSIONS TSSOP8, 4.4x3 CS 948 ISSU O SYMBO MIN NOM MX BSC 1.00 RF 1 θ º 8º TOP VIW 2 1 SI VIW 1 1 N VIW Nots: (1) ll dimnsions ar in millimtrs. ngls in dgrs. (2) Complis with JC MO

9 PCKG IMNSIONS MSOP 8, 3x3 CS 846 ISSU O SYMBO MIN NOM MX BSC RF 2 θ 0.25 BSC 0º 6º TOP VIW 2 TI 1 SI VIW N VIW 2 Nots: (1) ll dimnsions ar in millimtrs. ngls in dgrs. (2) Complis with JC MO-187. TI 1 9

10 Tal 7. ORRING INFORMTION vi Ordr Numr Spifi vi Marking Pakag Typ Tmpratur Rang ad Finish Shipping CT5112VI 10 GT3 CT5112V SOIC 8 40 C to +85 C NiPdu Tap & Rl, 3,000 Units / Rl CT5112VI 50 GT3 CT5112V SOIC 8 40 C to +85 C NiPdu Tap & Rl, 3,000 Units / Rl CT5112VI 00 GT3 CT5112V SOIC 8 40 C to +85 C NiPdu Tap & Rl, 3,000 Units / Rl CT5112YI 10 GT3 22 TSSOP 8 40 C to +85 C NiPdu Tap & Rl, 3,000 Units / Rl CT5112YI 50 GT3 24 TSSOP 8 40 C to +85 C NiPdu Tap & Rl, 3,000 Units / Rl CT5112YI 00 GT3 25 TSSOP 8 40 C to +85 C NiPdu Tap & Rl, 3,000 Units / Rl CT5112ZI 10 GT3 BPN MSOP 8 40 C to +85 C NiPdu Tap & Rl, 3,000 Units / Rl CT5112ZI 50 GT3 BPN MSOP 8 40 C to +85 C NiPdu Tap & Rl, 3,000 Units / Rl CT5112ZI 00 GT3 BPN MSOP 8 40 C to +85 C NiPdu Tap & Rl, 3,000 Units / Rl CT5112I 10 G CT5112 PIP 8 40 C to +85 C NiPdu Rail, 50 Units CT5112I 50 G CT5112 PIP 8 40 C to +85 C NiPdu Rail, 50 Units CT5112I 00 G CT5112 PIP 8 40 C to +85 C NiPdu Rail, 50 Units For information on tap and rl spifiations, inluding part orintation and tap sizs, plas rfr to our Tap and Rl Pakaging Spifiations Brohur, BR8011/. 10. For dtaild information and a rakdown of dvi nomnlatur and numring systms, plas s th ON Smiondutor vi Nomnlatur doumnt, TN310/, availal at ON Smiondutor and ar rgistrd tradmarks of Smiondutor Componnts Industris, C (SCIC). SCIC owns th rights to a numr of patnts, tradmarks, opyrights, trad srts, and othr intlltual proprty. listing of SCIC s produt/patnt ovrag may assd at Marking.pdf. SCIC rsrvs th right to mak hangs without furthr noti to any produts hrin. SCIC maks no warranty, rprsntation or guarant rgarding th suitaility of its produts for any partiular purpos, nor dos SCIC assum any liaility arising out of th appliation or us of any produt or iruit, and spifially dislaims any and all liaility, inluding without limitation spial, onsquntial or inidntal damags. Typial paramtrs whih may providd in SCIC data shts and/or spifiations an and do vary in diffrnt appliations and atual prforman may vary ovr tim. ll oprating paramtrs, inluding Typials must validatd for ah ustomr appliation y ustomr s thnial xprts. SCIC dos not onvy any lins undr its patnt rights nor th rights of othrs. SCIC produts ar not dsignd, intndd, or authorizd for us as omponnts in systms intndd for surgial implant into th ody, or othr appliations intndd to support or sustain lif, or for any othr appliation in whih th failur of th SCIC produt ould rat a situation whr prsonal injury or dath may our. Should Buyr purhas or us SCIC produts for any suh unintndd or unauthorizd appliation, Buyr shall indmnify and hold SCIC and its offirs, mploys, susidiaris, affiliats, and distriutors harmlss against all laims, osts, damags, and xpnss, and rasonal attorny fs arising out of, dirtly or indirtly, any laim of prsonal injury or dath assoiatd with suh unintndd or unauthorizd us, vn if suh laim allgs that SCIC was nglignt rgarding th dsign or manufatur of th part. SCIC is an qual Opportunity/ffirmativ tion mployr. This litratur is sujt to all applial opyright laws and is not for rsal in any mannr. PUBICTION ORRING INFORMTION ITRTUR FUFIMNT: itratur istriution Cntr for ON Smiondutor P.O. Box 5163, nvr, Colorado US Phon: or Toll Fr US/Canada Fax: or Toll Fr US/Canada mail: ordrlit@onsmi.om N. mrian Thnial Support: Toll Fr US/Canada urop, Middl ast and fria Thnial Support: Phon: Japan Customr Fous Cntr Phon: ON Smiondutor Wsit: Ordr itratur: For additional information, plas ontat your loal Sals Rprsntativ CT5112/