Mapini emagetsi eIC anokutendera kuti upe voltage nemagetsi akakodzera kudunhu rakabatanidzwa. Paunoshanda nemagetsi, unofanirwa kuziva kuti ndeipi pini inobatanidza nemagetsi uye ndeipi inoenda pasi. Ruzivo urwu runokubatsira kuvaka michina yakachengeteka uye kugadzirisa matambudziko nekukurumidza. Kana ukadzidza kuona pini chaiyo, unodzivirira dunhu rako kubva mukukuvadzwa uye unovandudza mashandiro aro.
Zvitsva Zvitsva
Dzidza mapini makuru ekupa simba: VCC, VDD, VEE, VSS, uye GND. Pini yega yega ine basa rakakosha rekupa voltage nemagetsi kuIC yako.
Gara uchitarisa datasheet reIC yako. Rinopa ruzivo rwakakosha nezvezvinoitwa nepini yega yega. Izvi zvinokubatsira kudzivirira zvikanganiso paunobatanidza zvinhu.
Isa ma-bypass nema-bulk capacitor pedyo nema-power pins. Izvi zvinoita kuti circuit yako igadzikane uye inoderedza ruzha.
Tsvaga pin 1 paIC yako nenzira kwayo. Kuiisa zvakanaka kunoita kuti circuit yako igare yakachengeteka uye ichishanda zvakanaka.
Shandisa nzira dzakanaka dzekuti gadzira mapini eI/OIzvi zvinokubatsira kudzora masaini uye zvinoita kuti dunhu rako rishande zviri nani.
Mhando dzemapini eIC Power-Supply
Kana ukatarisa chero magetsi, uchaona mhando dzakasiyana dzemapini anobatsira chip kushanda nemazvo. Pini yega yega ine basa rayo rakakosha. Kana ukanzwisisa zvinoitwa neimwe neimwe, unogona kusarudza zviri nani pane yako dhizaini yedunhu uye dzivisa zvikanganiso.
VCC, VDD, VEE, VSS, uye GND
Unowanzoona mapini mashanu aya pamaIC akawanda. Anobatsira kuendesa voltage nemagetsi akakodzera kuchip. Heino tafura inotsanangura zvinoitwa nepini yega yega:
chipeneti | Tsanangudzo uye Basa |
|---|---|
VCC | Voltage yemagetsi yakanaka yeBJTs, zvichiita kuti kuwedzerwa kwesimba uye kushanduka kuwedzere. |
VDD | Voltage yakanaka yemagetsi eFET, ichidzora kuyerera kwemagetsi uye kuwedzera simba. |
VEE | Voltage yemagetsi isina kunaka yeBJTs, zvichiita kuti pave nekufambiswa kwemagetsi kwakakodzera uye kukanganiswa kwemagetsi. |
ndima | Voltage isina simba yeN-channel FETs, inoshanda senzvimbo yekutarisa mazinga evoltage. |
GND | Nzvimbo yakajairika yekutarisa ma voltage ese ari mudunhu, zvichiita kuti kushanda kwakasimba kushande. |
Uchaona kuti VCC neVDD zvese zvinopa voltage yakanaka, asi zvinoshanda nemhando dzakasiyana dze transistors. VEE neVSS zvinowanzopa voltage isina kunaka kana kuti zvinoshandisa sereferensi. GND ndiyo ground pin huru. Inoita kuti zvese zvigare zvakanaka.
Mashandisiro aunoita mapini aya anogona kuchinja zvichienderana nerudzi rweIC. MumaIC edhijitari, unowanzo shandisa VDD semagetsi makuru uye VSS sepasi. MumaIC eanalog, unogona kuona ese ari maviri VCC neVEE kuti zvipe chip voltages dzakanaka nedzisina kunaka. Iyi setup inobvumira circuit kubata masaini anotenderera pamusoro nepasi pevhu. Heino kuenzanisa kupfupi:
basa | Digital ICs | Analog ICs |
|---|---|---|
Magetsi | VDD (kuwanikwa kwechimwe chete chakanaka) | VCC (yakanaka) uye VEE (yakaipa) yekupa kaviri |
Ground Reference | VSS (pasi) | VSS inogona kuva negative kana ichienzaniswa neground |
Voltage Levels | Kazhinji 0 V kusvika kuVDD | Inogona kuchinjika kubva kuVEE kuenda kuVCC |
Complexity | Dhizaini iri nyore nechitima chimwe chete | Zvakaoma zvikuru nekwanisiro yekutenga zvinhu zviviri uye nzvimbo dzakasiyana dzeanalog/digital |
Tip: Gara uchitarisa pepa redata remagetsi ako. Zita repini rimwe chete rinogona kureva zvinhu zvakasiyana mumachipisi akasiyana.
VIO, VCAP, uye Mamwe Mapini Akakosha
Mamwe maIC ane mamwe mapini ekuwedzera emabasa akakosha. Unogona kuona VIO, VCAP, kana mamwe mazita. Mapini aya anobatsira chip kuita zvinopfuura kungowana simba chete.
VIO: Pini iyi inopa simba kuchikamu che input/output (I/O) che chip. Unochishandisa kana uchida kuti I/O ishande ne voltage yakasiyana neyasara ye chip. Izvi zvinokubatsira kubatanidza IC kune zvimwe zvishandiso zvinoshandisa voltage dzakasiyana.
VCAP: Pini iyi inobatanidza ne capacitor. Capacitor inobatsira kuchengetedza voltage yakadzikama mukati me chip. Inogonawo kubatsira kuderedza ruzha uye kuvandudza mashandiro.
Mamwe Mapini Akakosha: Mamwe machipisi emagetsi ane mapini ezvinhu zvakaita se standby power, analog reference, kana kunyange ma built-in regulators. Rimwe nerimwe rine basa rakasiyana rinotsigira basa guru rechipisi.
Uchaona kuti mapini emagetsi e ic anoita zvinopfuura kungounza simba mu chip chete. Anobatsirawo kubatanidza mukati me IC nenyika yekunze. Heano mamwe mapini aya anobatsira dhizaini yako:
Mapini emagetsi anogara pamucheto kana pamakona echip. Izvi zvinoita kuti nzira ipfupike uye zvinobatsira kuti magetsi afambe zviri nani.
Mapini aya anoderedza migumisiro isingadiwe senge ruzha uye kurasikirwa kwechiratidzo.
Vanopa chip chinongedzo chakananga kunobva simba redunhu rako.
Vanoita shuwa kuti chikamu chimwe nechimwe chechip chinowana voltage ne current zvakakodzera.
Mumagadzirirwo akaomarara, unogona kushandisa nzira dzemagetsi dzinopfuura imwe chete. Izvi zvinokutendera kuti ushandise zvikamu zvakasiyana zvechip pamagetsi akasiyana kuti ushande zviri nani.
Cherechedza: Dhizaini yakanaka inotanga nekuziva zvinoitwa nepini yega yega. Kana ukabatanidza pini isiriyo, circuit yako ingasashande kana kutokuvara.
Mashandiro anoita mapini eIC Power-Supply muDC-DC Circuits
Voltage uye Kuwanikwa Kwazvino
Kana uchishandisa circuit yedc-dc, unovimba nemapini emagetsi kuti ape voltage ne current zvakakodzera kuIC yako. Mapini aya anoshanda senzvimbo huru dzekupinda simba. Muchishanduri chedc-dc, IC inoshandura voltage imwe kuenda kune imwe. Unofanira kubatanidza mapini emagetsi nemazvo kuitira kuti chip ikwanise kubata voltage ne current yainoda. Kana ukaisa voltage shoma, IC ingasashande. Voltage yakawandisa inogona kukuvadza chip. Current inofanirawo kuenderana nezvinodiwa necircuit. Kana current yakaderera zvakanyanya, IC inogona kudzimwa kana kuita zvisinganzwisisike.
Unowanzoona ma power pins akawanda pa dc-dc IC. Pini yega yega ine basa rayo. Mamwe ma pin anounza main voltage. Mamwe anobatsira kudzora kufamba kwe current. Ungawana ma pin anonzwa voltage kuti irambe yakasimba. Paunogadzira dc-dc circuit, gara uchitarisa datasheet kuti uone voltage uye current ratings. Izvi zvinokubatsira kudzivirira zvikanganiso uye kuchengetedza circuit yako yakachengeteka.
Tip: Gara uchishandisa voltage nemagetsi zvakakodzera paDC-DC IC yako. Izvi zvinoita kuti circuit yako irambe ichishanda zvakanaka uye zvinodzivirira zvikamu zvako.
Kugadzikana uye Kudzora Ruzha
Kugadzikana kwakakosha mune chero dunhu reDC-DC. Unoda kuti voltage irambe yakasimba, kunyangwe magetsi achichinja. Ruzha runogona kukonzera matambudziko mudunhu rako. Runogona kuita kuti voltage ikwire kana kusvetuka. Izvi zvinogona kukanganisa mashandiro edhizaini yako yeDC-DC.
Unogona kuvandudza kugadzikana uye kuderedza ruzha nekutevera matanho akanaka ekugadzira:
Isa ma capacitor e bypass pedyo nema power pins. Izvi zvinobatsira kubvisa ruzha rwe high-frequency.
Shandisa ma "bulk capacitor" kuti voltage irambe yakasimba panguva yekuchinja kwemagetsi kamwe kamwe.
Gadzira mapuraneti ako epasi neemagetsi nokungwarira. Izvi zvinobatsira kudzora ruzha, kunyanya mumasekete ane switching yemagetsi yakakwira.
wedzera decoupling capacitors pedyo nemapini emagetsi eIC. Aya anoshanda sechidziviriro kubva kuma spikes emagetsi.
Chidyiro power delivery network inoita kuti circuit yako yedc-dc irambe ichishanda zvakanaka. Unowana voltage yakachena uye stending current. Izvi zvinoreva kuti IC yako inogona kuita basa rayo pasina zvikanganiso.
Yeuka: Kurongeka kwakanaka uye zvikamu zvakakodzera zvinokubatsira kudzora voltage nemagetsi. Izvi zvinoita kuti pave nesimba riri nani uye ruzha rushoma mumagetsi ako eDC-DC.
Kuziva mapini eIC Power-Supply
Kunyora Manhamba neMacherechedzo ePin
Paunotarisa IC, unoona nzvimbo dzakawanda dzekupinda dzinonzi mapini. Pini yega yega ine nhamba nebasa. Unofanira kuwana nzvimbo yakakodzera yekupinda yesimba, pasi, nezvimwe zviratidzo. MaIC mazhinji anoshandisa zviratidzo zvakakosha kuti akubatsire kuwana pini 1. Ungaona notch, dimple, kana chamfered edge. Zviratidzo izvi zvinokuratidza pekutangira kuverenga mapini ekupinda. Pini 1 yakakosha zvikuru. Kana ukabatanidza mapini ekupinda nenzira isiriyo, circuit yako ingasashanda.
Heano mamwe maitiro akajairika ekuona pin 1 nemamwe mapini ekupinda:
Chinongedzo chiri paIC chinokuratidza kuti pin 1 iri pasi kuruboshwe kana notch iri kuruboshwe.
Madonhwe madiki anonongedza pini 1 pakona yepasi kuruboshwe.
Mupendero une chamfered unonongedzerawo kune pin 1 pakona yepazasi kuruboshwe.
Pini yega yega yekupinda inobatanidzwa kune chikamu chakasiyana chedunhu, senge simba, pasi, kana chiratidzo chekupinda.
Unofanira kugara uchitarisa sisitimu yekunyora makodhi. Matunhu akasiyana anoshandisa makodhi akasiyana. Heino tafura inoratidza mamwe masisitimu ekunyora makodhi akafanana:
Coding System | Nharaunda | tsananguro |
|---|---|---|
JEDEC | North America | Standard yemakodhi eIC. |
EIA/ECMA | Europe | Nzira yakasiyana yekugovera kodhi. |
JIS-C-7012 | Japani | Chimiro chakasiyana chekodhi yeICs. |
Kuziva pin 1 kunokubatsira kuti urongedze mapini emagetsi eIC nemazvo. Danho iri rinochengetedza circuit yako yakachengeteka uye ichishanda.
Kuverenga Datasheets uye Pinouts
Dhatabhesi ndiyo shamwari yako yepamoyo kana uchishanda neICs. Inokuudza zvinoitwa nepini yega yega yekupinda. Unogona kuwana dhayagiramu yepini mudhatabhesi. Dhayagiramu iyi inoratidza mapini ese ekupinda, nhamba dzawo, uye mabasa awo. Unogona kuona kuti ndeipi input yesimba, ndeipi yepasi, uye ndeipi yekuisa chiratidzo.
Mapepa edata anowanzo kupa dhayagiramu yebhuroko inotsanangura marongerwo emukati meIC. Kubva padhayagiramu yebhuroko, unogona kudzidza kuti ndeapi mabhuroko anoshanda anopiwa mukati meIC uye kuti ndeapi maitikiro ezviitiko anotungamira kubuda. Zvakare, pamwe chete nedhayagiramu yebhuroko, zvakajairika kupa tsananguro yekushanda kwemabhuroko anoshanda uye mabasa emapini ega ega, ayo anoumba ruzivo rwakakosha rwekunzwisisa mashandiro eIC.
Paunoverenga pepa reruzivo, tsvaga zvinhu izvi:
Huwandu hwese hwemapini ekupinda paIC.
Dhayagiramu yepini ine pini yega yega yakanyorwa.
Makodhi emavara kana zviratidzo zvinoita kuti zvive nyore kuona mapini emagetsi nepasi.
Tsananguro yebasa repini yega yega yekuisa, senge kuisa, kuburitsa, kudzima, kana kugadzirisa patsva.
Unofanira kugara uchibatanidza mapini ekupinda ari paIC yako nehurongwa hwebhodhi redunhu rako. Iva nechokwadi chekuti mapini ekupinda anoenderana nenzvimbo dzakakodzera. Kana iwe ukaisa mapini ekupinda paIC yako. sanganisa mapini ekupinda, dunhu rako rinogona kusashanda kana kukuvara. Gara uchitarisa datasheet usati wabatanidza chero pini yekupinda.
Kana ukatevera matanho aya, unogona kuwana nekushandisa mapini emagetsi e ic nechivimbo. Uchachengetedza circuit yako uye unoita shuwa kuti zvese zvinopinda zvinoshanda sezvazvinofanira.
Mapini ePower IC: Mabasa uye Maitiro Akanakisisa
Mabasa Akakosha (RT/CLK, FB, BOOT)
Mamwe mapini emagetsi anoita mabasa akakosha kubatsira dunhu rako. Mapini aya anobatsira nenguva, mhinduro, uye kuchinja. Tafura iri pazasi inoratidza zvinoitwa nemapini eRT/CLK, FB, uye BOOT:
chipeneti | Rinoshanda Tsananguro |
|---|---|
RT/CLK | Inotara kuti oscillator inoshanda nekukurumidza zvakadii uye inogona kuenzanisa maDC-DC converters akati wandei kuti ideredze ma "input current ripple". |
FB | Ipini yemhinduro inoita kuti voltage inobuda irambe yakasimba uchishandisa nzira yekudzokorora mhinduro isina kunaka. |
BOTI | Inobatanidza ne capacitor kuti ipe voltage yakawedzerwa kugedhi re high-side FETs, saka dzinoshanda zvakanaka kunyangwe kana SW voltage yakakwira. |
Pini yega yega inoita chimwe chinhu chakakosha. RT/CLK inokutendera kuti usarudze kana kuchinja kwaitika. FB inobatsira IC kutarisa kubuda kwemagetsi uye kushandura circuit yekupinda kuti voltage irambe yakadzikama. BOOT inopa voltage yakawanda kugedhi re switch repadivi repamusoro, izvo zvinobatsira nekukurumidza kuchinja kwemagetsi uye kuchengetedza kubuda kwakasimba.
Mapini eI/O uye Kugadziriswa
Unofanira kugadzirisa mapini eI/O nenzira kwayo kuti IC yako ishande zvakanaka. Maitiro aunoagadzirisa anoshandura mashandiro anoita circuit yekupinda kumasaini uye magetsi.
Kuti EMC ive nani, usasiye wachi dzisina kushandiswa, macounter, kana I/Os dzakavhurika. Isa I/Os ku “0” kana “1” (dhonza-kumusoro kana kudhonza-pasi pamapini asina kushandiswa eI/O) uye dzima maficha asina kushandiswa.
Chiteshi chega chega cheI/O chine marejista masere ekudzora zvachinoita.
Marejista ePORTx anokubatsira kuverenga mazinga elogic ari pamapini.
Marejista eLatch anobuda (LATx) anokutendera kuti unyorere kuchiteshi woverenga mavalues akachinja.
Marejista eTri-State Control (TRISx) anoronga kuti mapini anoenda kupi.
Paunogadzira circuit yekupinda, unosarudza gwara uye logic yepini yega yega. Izvi zvinokubatsira kudzora magetsi, voltage, uye kubuda kweprojekiti yako.
Matambudziko Anowanikwa uye Mhinduro
Matambudziko anogona kuitika kana ukasabatanidza mapini emagetsi nenzira kwayo. Heano mamwe matambudziko akajairika uye maitiro ekugadzirisa:
Kudonha kwechitima chemagetsi: Voltage inodonha kana magetsi akawandisa achidikanwa. Gadzirisa: Shandisa mapuraneti emagetsi ane resistance shoma uye isa ma bulk capacitor pedyo nemagetsi.
Kusvetuka-svetuka pasi: Kuchinja maIC akawanda kunogona kuita kuti magetsi awedzere kukwira. Gadzirisa: Isa ma ground vias pedyo nema power pins uye shandisa ground plane yakasimba.
Kupatsanurana kusina kukwana: Kuisa capacitor isina kunaka kunokonzera ruzha. Gadzirisa: Isa ma capacitor pedyo nemapini emagetsi uye shandisa mhando dzakasiyana kuti upatsanure zviri nani.
Kupisa kwakanyanya: Mvura yakawanda inoita kuti zvinhu zvipise. Gadzirisa: Isa zvikamu kuti mweya ufambe zvakanaka uye shandisa dhizaini yakanaka yekupisa.
Kusawirirana kweImpedance: Kunoita kuti voltage ripple uye ruzha. Kugadzirisa: Shandisa simba rakasimba uye mapuraneti epasi uye tarisa impedance uchishandisa simulations.
Kusashanda zvakanaka kwevhu: Kunokonzera matambudziko eruzha. Gadzirisa: Usapatsanura mapuraneti evhu uye shandisa ma via akawanda evhu.
Kuiswa kwechikamu chisina kunaka: Kunoita kuti kuramba uye inductance ikwire. Gadzirisa: Chengeta zvikamu zvine chekuita nazvo zviri pedyo uye tevera mitemo yekurongeka.
Kana ukatevera mazano aya, dunhu rako rekuisa magetsi richashanda zviri nani. Uchaita kuti voltage, current, uye output zvirambe zvakagadzikana. Izvi zvinobatsira dunhu rako kugara kwenguva refu uye kushanda zvakanaka.
Mienzaniso Inoshanda uye Kugadzirisa Matambudziko
Kubatana Kwakarurama vs. Kusina Kururama
Unogona kudzivirira matambudziko akawanda nekubatanidza mapini emagetsi e ic nenzira kwayo. Kana ukakanganisa, dunhu rako rinogona kusashanda kana kukuvara. Tafura iri pazasi inoratidza zvimwe zvikanganiso zvakajairika uye kuti zvinokanganisa sei purojekiti yako:
Mistake Type | tsananguro |
|---|---|
Voltage Yekupinda Isina Kukwana | Unobatanidza adapta ye12V DC panzvimbo pe14V–15V DC inodiwa. Voltage yacho yakaderera zvakanyanya kuti isakwanise kugadziriswa zvakanaka. |
MaCapacitor Anodiwa Asipo | Unodarika ma capacitor anodiwa. Dunhu rinogona kutanga kutenderera uye kubuda kwemagetsi kunopedzisira kusina kugadzikana. |
Kubatanidza Pasi Kusina Kururama | Unoshandisa nzvimbo dzakasiyana dzekupinda nekubudisa. Izvi zvinokonzera matambudziko ekudzika kwevhu uye zvinogona kukonzera ruzha. |
Kubatana kwePolarity Reverse | Unochinja mapini ekupinda neanobuda. Izvi zvinogona kukuvadza IC kana kuimisa kushanda. |
Zano: Gara uchitarisa pini yega yega usati waisa simba pamagetsi. Shandisa datasheet kuti uenzanise nhamba dzepini nemazita.
Real-World Scenarios
Kana ukasangana nematambudziko nedunhu rako, unogona kutevera matanho ari nyore kuti uwane nekugadzirisa dambudziko racho. Heino runyorwa rwezvinofanira kushandiswa:
Unganidza maturusi ako. Unoda multimeter ne oscilloscope. Tsvaga zvikamu zvakatsva kana kuti zvinobatanidzwa zvisina kusimba pabhodhi.
Yera simba rekudzivirira pasi papini dzakakosha. Izvi zvinokubatsira kuwana mashort circuits kana ma open circuits.
Batidza magetsi padunhu. Tarisa voltage yekupinda uye tarisa ma waveforms. Izvi zvinoratidza kana voltage iri yakasimba kana kuti paine spikes.
Chenjerera zvikanganiso zvinowanzoitika. Kana ukaona fuse yakaputika, isina DC output, kana mutoro usina simba, shandisa zviratidzo izvi kuti zvikutungamirire pakugadzirisa kwako.
Cherechedza: Kuongorora nekunyatsoongorora kunokubatsira kuti uwane matambudziko ekubatanidza magetsi kana mapini nekukurumidza.
Kana ukatevera matanho aya, unogona kugadzirisa matambudziko mazhinji nemapini emagetsi e-ic. Uchachengetedza dunhu rako uye unoita shuwa kuti rinoshanda sezvakarongwa.
Unofanira kudzidza nezvemapini eIC power-supply. Izvi zvinokubatsira kugadzira magetsi anoshanda zvakanaka. Kana ukabatanidza mapini nenzira kwayo, unomisa matambudziko akawanda. Nyanzvi dzinoti mapini akanaka anobatsira pakubatana kwakasimba kwemagetsi uye kwakasimba. Anochengetedzawo system yako yakagadzikana. Tafura iri pazasi inotsanangura kuti nei mapini aya achikosha:
Chikonzero Chakakosha | Tsanangudzo |
|---|---|
High Current Capacity | Mapini anogona kutakura magetsi akawanda uye kugara achitonhorera. |
Specialized Connectors | Zvinobatanidza magetsi zvinoita kuti chinongedzo chirambe chakasimba. |
Kuvimbika kweKubatanidza | Mapini akanaka anobatsira kuti zvikamu zvese zvishande pamwe chete. |
Kugadzikana kweSisitimu yeMagetsi | Mapini emhando yepamusoro anomisa zviratidzo kuti zvisarasikirwe kana kusanganiswa. |
Migumisiro yePini Dzisina Hunhu Hwakanaka | Mapini asina kunaka anogona kupwanya zvinhu kana kuita kuti zviratidzo zvisashande zvakanaka. |
Kuziva izvi kunokubatsira kuti mapurojekiti akachengeteka. Zvinoitawo kuti kugadzirisa zvinhu kuve nyore.
FAQ
Chii chinoitika kana ukabatanidza pini yemagetsi isiriyo?
Kana ukashandisa pini isiriyo, IC inogona kutyoka kana kusashanda zvakanaka. Gara uchitarisa datasheet usati wabatanidza chero chinhu. Kusarudza pini yakakodzera kunoita kuti circuit yako ive yakachengeteka.
Ungawana sei mapini emagetsi ari paIC?
Tarisa zviratidzo zvakaita sema notches kana madots paIC. Datasheet ine mufananidzo we pinout kuti ikubatsire. Pin 1 yakanyorwa nenzira yakakosha. Enzanisa mufananidzo neIC yako kuti uwane mapini akakodzera.
Sei mamwe maIC aine mapini emagetsi anopfuura rimwe chete?
Mamwe maIC anoda mavoltage akasiyana ezvikamu zvakasiyana mukati. Mapini akawanda emagetsi anokubvumira kuti ushandise zvikamu zveanalog nedhijitari padanho razvo. Izvi zvinobatsira chip kuti ishande zvirinani uye inoderedza ruzha.
Unofanira kushandisa ma capacitor ane mapini emagetsi here?
Batsirwa | Sei Uchifanira Kushandisa MaCapacitors? |
|---|---|
Kuramba | Inobatsira kuchengetedza voltage yakadzikama |
Rudzi rweRucheno | Inovhara zviratidzo zvausingade |
Unofanira kuisa ma capacitor pedyo nema power pins kuti uwane mhedzisiro yakanaka.
