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Product Attributes
| TYPE | DESCRIPTION |
| Category | Integrated Circuits (ICs) PMIC - Voltage Regulators - DC DC Switching Regulators |
| Mfr | Texas Instruments |
| Series | SIMPLE SWITCHER® |
| Package | Tepi & Reel (TR) Cheka Tape (CT) Digi-Reel® |
| SPQ | 75Tube |
| Product Status | Active |
| Basa | Nhanho-Pasi |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Nhamba Yezvinobuda | 1 |
| Voltage - Input (Mini) | 4.3V |
| Voltage - Input (Max) | 60V |
| Voltage - Kubuda (Mini/Yakagadziriswa) | 0.8V |
| Voltage - Kubuda (Max) | 50V |
| Zvazvino - Output | 2A |
| Frequency - Kuchinja | 200kHz ~ 2.5MHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Nyaya | 8-PowerSOIC (0.154", 3.90mm Upamhi) |
| Supplier Device Package | 8-SO PowerPad |
| Base Product Number | LMR16020 |
Nzvimbo dzipi?
Ndedzipi nzvimbo dziri kushandura magetsi uye mutsara magetsi emagetsi akakodzera
Kuchinja magetsi hakudi kuti transformer ishandure AC line simba rakananga kuDC voltage, uye wozoshandura iyo mbishi DC voltage kune yakakwira-frequency AC siginecha iyo ichashandiswa mune regulator wedunhu kugadzira inodiwa voltage uye yazvino.
Iyo mutsara wemagetsi dhizaini inoshandisa iyo AC mutsetse voltage kune yemagetsi transformer kusimudza kana kudzikisa voltage isati yaiswa kune regulator wedunhu.Sezvo saizi yetransformer isiri yakanangana neiyo frequency yekushanda, izvi zvinogona kukonzera yakakura uye inorema simba rekupa.
Mhando yega yega yekushanda kwemagetsi ine zvayakanakira nezvayakaipira.Simba rekuchinja magetsi i80 muzana idiki uye yakareruka pane inowirirana mutsara magetsi, asi inoburitsa ruzha rwepamusoro-runogona kukanganisa michina yemagetsi.Kusiyana nemagetsi emagetsi emagetsi, kushandura magetsi emagetsi anogona kumira kurasikirwa neAC mu10-20 ms renji pasina kukanganisa kubuda.
Linear magetsi ekushandisa anoda hombe semiconductor midziyo yekugadzirisa inobuda voltage uye nekudaro inogadzira kupisa kwakawanda, kunoderedza kugona kwesimba.Kune 24V inobuda, mutsara magetsi emagetsi anowanzo kuita 60 muzana inoshanda, zvichienzaniswa ne80 muzana kana yepamusoro kune switch-modhi magetsi emagetsi.Linear magetsi emagetsi ane inokurumidza yenguva yekupindura nguva pane yavo switch-modhi vanobatana, izvo zvakakosha mune dzimwe nzvimbo dzakananga.Kazhinji, chinja-modhi magetsi emagetsi akareruka uye akakwana, achiita kuti aenderane nemidziyo inotakurika.Linear magetsi emagetsi akakodzera kugonesa analog maseketi nekuda kweruzha rwemagetsi uye nyore kutonga.
Kukanganisa kwakajairika
Kukanganisa kwakajairika mukuchinja magetsi.
Ndeipi mhosva yakajairika pakuchinja magetsi?Mhosva yakajairika mukuchinja masimba emagetsi ndeye switching transistor pachayo.A shorted transistor inokonzera huwandu hukuru hwemazuva ano kuyerera kuburikidza ne transformer uye inoputika fuse.
Transistor kutadza kunowanzo kukonzerwa ne bad capacitors.Tsvaga iyo yakazvimba kana kubuda inobuda sefa capacitor uye tsiva chero capacitor inoratidzika kunge yakaipa.Kumisa kutadza uku kwakajairika kuti kurege kuitika zvakare, iyo inobuda sefa capacitor inofanirwa kutsiviwa necapacitor.Mazhinji ekugadzira magetsi emagetsi haaisi yakaderera ESR capacitor semidziyo yepakutanga nekuti inodhura zvakanyanya kupfuura yakajairwa capacitor.Zvisinei, zvakakosha kuvashandisa sezvikamu zvekutsiva sezvo vachizovandudza zvikuru hupenyu hwemagetsi.
Diode kukundikana nderimwe dambudziko rinowanzoitika.Kune madhiodhi akawanda mumagetsi ekuchinja uye kutadza kwe diode imwe chete kunogona kuita kuti magetsi avhure fuse kana kuvhara.Iyo yakajairika diode kutadza ipfupi dunhu mu +12 volt kana -5 volt inobuda inogadzirisa.Kumwe kwekukundikana uku kunogona kukonzerwa nekushandiswa kwe +12 kana -5 volt zvabuda.Iyo yakakwira voltage yekupinda diode inogona zvakare kupfupikiswa.
About Product
Iyo LMR16020 ndeye 60 V, 2 A SIMPLE SWITCHER® nhanho pasi regulator ine yakabatanidzwa yakakwirira-parutivi MOSFET.Iine huwandu hwakakura hwekuisa kubva pa4.3 V kusvika 60 V, inokodzera akasiyana maapplication kubva kumaindasitiri kuenda kumotokari yekugadzira magetsi kubva kune asina kudzorwa masosi.Iyo regulator's quiescent current ndeye 40 µA muKurara-modhi, iyo inokodzera bhatiri powered masisitimu.Iyo yakanyanya-yakaderera 1 µA ikozvino mukuvhara mode inogona kuwedzera hupenyu hwebhatiri.Iyo yakakura inogadziriswa switching frequency renji inobvumira ingave inoshanda kana yekunze chikamu saizi kuti igadziriswe.Muripo wemukati weloop zvinoreva kuti mushandisi haana basa rinonetesa rekugadzira loop muripo.Izvi zvinoderedzawo zvikamu zvekunze zvechigadzirwa.Iyo chaiyo inogonesa yekuisa inobvumira kurerutsa yekudzora kudzora uye sisitimu simba kutevedzana.Chishandiso ichi zvakare chine yakavakirwa-mukati maficha senge kutenderera-ne-kutenderera ikozvino muganho, kupisa kunzwa uye kudzima nekuda kwekunyanya kuparara kwesimba, uye kubuda overvoltage kudzivirira.
Iyo LMR16020 inowanikwa mune 8-pini HSOIC pasuru ine yakashama padhi yekudzikira kupisa kupisa.
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