ISekethe eDityanisiweyo ye-IC Electronics Components uMboneleli oMtsha kunye noweSitokhwe kwiNkonzo yeBom yexabiso eliLungileyo
Iimpawu zeMveliso
| UHLOBO | INKCAZO |
| Udidi | IiSekethe eziDityanisiweyo (ICs) I-PMIC - i-Voltage Regulators - i-DC DC Switching Regulators |
| Mfr | Texas Instruments |
| Uthotho | SIMPLE SWITCHER® |
| Iphakheji | Iteyiphu & neReel (TR) Sika iTape (CT) Digi-Reel® |
| SPQ | 75Tube |
| Ubume beMveliso | Iyasebenza |
| Umsebenzi | Yehla |
| Uqwalaselo Lwemveliso | Okuhle |
| I-Topology | Buck |
| Uhlobo Lwemveliso | Iyahlengahlengiswa |
| Inani leZiphumo | 1 |
| I-Voltage-Igalelo (uMzu) | 4.3V |
| I-Voltage-Input (Ubukhulu) | 60V |
| Voltage-Imveliso (Min/Fixed) | 0.8V |
| Voltage-Imveliso (Ubukhulu) | 50V |
| Okwangoku -Isiphumo | 2A |
| Ukuphindaphinda-Ukutshintsha | 200kHz ~ 2.5MHz |
| Ungqamaniso loLungisanisi | No |
| Ubushushu bokusebenza | -40°C ~ 125°C (TJ) |
| Uhlobo lokuNqamisa | INtaba engaphezulu |
| Ipakethe / Ityala | 8-PowerSOIC (0.154", 3.90mm Ububanzi) |
| Supplier Device Package | 8-SO PowerPad |
| Inombolo yeMveliso esisiseko | LMR16020 |
Zeziphi iindawo?
Zeziphi iindawo ezitshintshela unikezelo lwamandla kunye nonikezelo lombane olulungelelanisiweyo
Ukutshintsha unikezelo lwamandla akudingi isiguquli ukuguqula amandla omgca we-AC ngokuthe ngqo kumbane we-DC, kwaye emva koko uguqule loo mandla ombane ekrwada e-DC kwi-high-frequency AC signal eya kusetyenziswa kumjikelo wolawulo ukuvelisa amandla ombane afunekayo kunye nowangoku.
Uyilo lonikezelo lwamandla ombane lusebenzisa i-voltage yomgca we-AC kwi-transformer yamandla ukunyusa okanye ukuthoba i-voltage ngaphambi kokuba isetyenziswe kwisekethe yomlawuli.Njengoko ubukhulu be-transformer bungalingani ngokuthe ngqo kwi-frequency yokusebenza, oku kunokubangela ukunikezelwa kwamandla amakhulu kunye nobunzima.
Uhlobo ngalunye lomsebenzi wokubonelela ngombane lunenzuzo kunye nokungonakali.Umbane wokutshintsha umbane ngama-80 ekhulwini amancinci kwaye ukhaphukhaphu kunombane ohambelanayo, kodwa uvelisa ingxolo ephezulu enokuthi iphazamise izixhobo zombane.Ngokungafaniyo nombane wombane, ukutshintsha izixhobo zombane kunokumelana neelahleko ze-AC kuluhlu lwe-10-20 ms ngaphandle kokuchaphazela imveliso.
Unikezelo lwamandla ombane lufuna izixhobo ezikhulu zesemiconductor ukulawula umbane ophumayo kwaye ke ukuvelisa ubushushu obuninzi, obunciphisa ukusebenza kakuhle kwamandla.Kwimveliso ye-24V, unikezelo lwamandla emgceni luqhelekile malunga neepesenti ezingama-60, xa kuthelekiswa neepesenti ezingama-80 okanye ngaphezulu kunikezelo lwamandla kwimowudi yokutshintsha.Unikezelo lwamandla ombane lunexesha elikhawulezayo lokuphendula elidlulayo kuneendlela zabo zokutshintsha, okubalulekileyo kwezinye iindawo ezithile.Ngokuqhelekileyo, izixhobo zombane zemowudi zikhaphukhaphu kwaye zixinene, zizenza zilungele izixhobo eziphathwayo.Izixhobo zombane zomgca zilungele ukunika amandla iisekethe ze-analog ngenxa yengxolo yombane ephantsi kunye nokulula kolawulo.
Iimpazamo eziqhelekileyo
Iimpazamo eziqhelekileyo ekutshintsheni izixhobo zombane.
Yeyiphi impazamo eqhelekileyo ekutshintsheni izixhobo zombane?Impazamo eqhelekileyo ekutshintsheni unikezelo lwamandla kukutshintsha kwe-transistor ngokwayo.I-transistor emfutshane ibangela ukuba umthamo omkhulu wangoku uqhube kwi-transformer kwaye uvuthele i-fuse.
Ukungaphumeleli kweTransistor ngokuqhelekileyo kubangelwa yi-capacitors embi.Fumana i-capacitor yokucoca imveliso edumbileyo okanye evuzayo kwaye ubeke endaweni yazo naziphi na iicapacitors ezikhangeleka zimbi.Ukumisa oku kusilela okuqhelekileyo ukuba kungenzeki kwakhona, i-capacitor yokucoca imveliso kufuneka itshintshwe nge-capacitor.Uninzi lwabavelisi bamandla abafaki ii-ESR capacitors ezisezantsi njengezixhobo zokuqala kuba zibiza kakhulu kuneecapacitors eziqhelekileyo.Nangona kunjalo, kufanelekile ukuzisebenzisa njengamacandelo okutshintshwa njengoko ziya kubuphucula kakhulu ubomi bobonelelo lwamandla.
Ukungaphumeleli kweDiode yenye ingxaki eqhelekileyo.Kukho iidiode ezininzi ekutshintsheni umbane kunye nokungaphumeleli kwe-diode enye kunokubangela ukuba umbane uvuthele i-fuse okanye uvale.Ukungaphumeleli kwe-diode eqhelekileyo yisiphaluka esifutshane kwi- +12 volt okanye -5 volt output rectifier.Ezinye zezi ntsilelo zinokubangelwa kusetyenziso lwe- +12 okanye -5 yemveliso ye-volt.Idiode yokufakwa kwamandla ombane aphezulu nayo inokuba mfutshane.
Malunga neMveliso
I-LMR16020 yi-60 V, i-2 A SIMPLE SWITCHER® isilawuli esisezantsi esine-MOSFET ehlangeneyo ephezulu.Ngoluhlu olubanzi lwegalelo ukusuka kwi-4.3 V ukuya kwi-60 V, ifanelekile kwizicelo ezahlukeneyo ukusuka kumashishini ukuya kwi-automotive yokulungiswa kwamandla ukusuka kwimithombo engalawulwayo.Umsinga othe cwaka womlawuli ngama-40 µA kwimowudi yokuLala, elungele iinkqubo ezisebenza ngebhetri.I-ultra-low 1 µA yangoku kwimowudi yokucima inokwandisa ubomi bebhetri.Uluhlu olubanzi oluguquguqukayo oluguquguqukayo luvumela ukuba ukusebenza kakuhle okanye ubungakanani becandelo langaphandle buphuculwe.Imbuyekezo yelophu yangaphakathi ithetha ukuba umsebenzisi ukhululekile kumsebenzi odinayo woyilo lwembuyekezo yelophu.Oku kukwanciphisa amacandelo angaphandle esixhobo.Ukuchaneka kwenza igalelo livumela ukwenziwa lula kolawulo lomlawuli kunye nolandelelwano lwamandla enkqubo.Isixhobo sikwanalo neempawu zokhuseleko ezakhelwe ngaphakathi ezifana nomda wangoku womjikelo-ngomjikelo, ukuva i-thermal nokuvala ngenxa yokutshatyalaliswa kwamandla amaninzi, kunye nokukhuselwa kwe-overvoltage ephumayo.
I-LMR16020 ifumaneka kwiphakheji ye-8-pin ye-HSOIC ene-pad eveziweyo yokumelana nokushisa okuphantsi.
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