Inzira Yuzuzanya IC Ibikoresho bya elegitoronike Ibitanga Ibishya & Umwimerere Mububiko Igiciro Cyiza Bom Serivisi
Ibiranga ibicuruzwa
UBWOKO | GUSOBANURIRA |
Icyiciro | Inzira zuzuye (IC) PMIC - Igenzura rya voltage - DC DC Guhindura |
Mfr | Ibikoresho bya Texas |
Urukurikirane | SWITCHER® YOROSHE |
Amapaki | Tape & Reel (TR) Kata Tape (CT) Digi-Reel® |
SPQ | 75Tube |
Imiterere y'ibicuruzwa | Bikora |
Imikorere | Intambwe-Hasi |
Iboneza Ibisohoka | Ibyiza |
Topologiya | Buck |
Ubwoko Ibisohoka | Guhindura |
Umubare w'Ibisohoka | 1 |
Umuvuduko - Iyinjiza (Min) | 4.3V |
Umuvuduko - Iyinjiza (Max) | 60V |
Umuvuduko - Ibisohoka (Min / Bishyizweho) | 0.8V |
Umuvuduko - Ibisohoka (Max) | 50V |
Ibiriho - Ibisohoka | 2A |
Inshuro - Guhindura | 200kHz ~ 2.5MHz |
Ikosora | No |
Gukoresha Ubushyuhe | -40 ° C ~ 125 ° C (TJ) |
Ubwoko bwo Kuzamuka | Umusozi |
Ipaki / Urubanza | 8-PowerSOIC (0.154 ", Ubugari bwa 3.90mm) |
Ibikoresho byo gutanga ibikoresho | 8-CYANE PowerPad |
Umubare wibicuruzwa shingiro | LMR16020 |
Ni utuhe turere?
Nibihe bice bihindura amashanyarazi hamwe numurongo wumurongo ukwiranye
Guhindura ibikoresho byamashanyarazi ntibisaba transformateur kugirango ihindure ingufu za AC umurongo wa DC mu buryo butaziguye, hanyuma uhindure uwo muyoboro wa DC mbisi kuri signal ya AC yumurongo mwinshi uzakoreshwa mumuzunguruko kugirango ubyare ingufu zisabwa hamwe nubu.
Igishushanyo mbonera cyo gutanga amashanyarazi gikoresha ingufu za AC kumurongo wa transformateur kugirango uzamure cyangwa ugabanye voltage mbere yuko ikoreshwa kumuzunguruko.Nkubunini bwa transformateur ihwanye nuburyo butaziguye ninshuro ikora, ibi birashobora kuvamo amashanyarazi manini kandi aremereye.
Buri bwoko bwibikorwa byo gutanga amashanyarazi bifite ibyiza nibibi.Amashanyarazi ahinduranya ni 80 ku ijana kandi yoroshye kurenza amashanyarazi ajyanye n'umurongo uhuye, ariko atanga urusaku rwinshi rushobora kubangamira ibikoresho bya elegitoroniki.Bitandukanye n'umurongo w'amashanyarazi, guhinduranya amashanyarazi birashobora kwihanganira igihombo cya AC murwego rwa ms 10-20 bitagize ingaruka kumusaruro.
Amashanyarazi aringaniye arasaba ibikoresho binini bya semiconductor kugirango bigenzure ingufu zasohotse bityo bitange ubushyuhe bwinshi, bigabanya ingufu zingufu.Kubisohoka 24V, amashanyarazi yumurongo mubisanzwe akora hafi 60 ku ijana, ugereranije na 80 ku ijana cyangwa arenga kubitanga amashanyarazi.Imirongo itanga amashanyarazi ifite igihe cyihuse cyo gusubiza kurenza uko bahindura-uburyo bagenzi babo, bifite akamaro mubice bimwe byihariye.Mubisanzwe, guhinduranya-moderi itanga ibikoresho biroroshye kandi byoroshye, bigatuma bikenerwa nibikoresho byoroshye.Amashanyarazi aringaniye arakwiriye gukoreshwa mumashanyarazi kubera urusaku ruke rwamashanyarazi kandi byoroshye kugenzura.
Amakosa asanzwe
Amakosa asanzwe muguhindura ibikoresho.
Ni ikihe kosa risanzwe muguhindura amashanyarazi?Ikosa risanzwe muguhindura amashanyarazi ni uguhindura transistor ubwayo.Transistor ngufi ituma umubare munini wumuyaga unyura muri transformateur hanyuma ugahita fuse.
Kunanirwa kwa Transistor mubisanzwe biterwa na capacator mbi.Shakisha ibibyimba byabyimbye cyangwa bisohoka muyunguruzi hanyuma usimbuze ubushobozi bwose busa nabi.Kugirango uhagarike kunanirwa bisanzwe bitazongera kubaho, ibisohoka muyungurura ubushobozi bigomba gusimburwa na capacitor.Abakora amashanyarazi benshi ntibashyiraho ubushobozi buke bwa ESR nkibikoresho byumwimerere kuko birahenze cyane kurenza ubushobozi busanzwe.Ariko, birakwiye ko ubikoresha nkibisimbuza kuko bizamura cyane ubuzima bwamashanyarazi.
Kunanirwa na diode nikindi kibazo gikunze kugaragara.Hano hari diode nyinshi muguhindura amashanyarazi kandi gutsindwa kwa diode imwe bishobora gutera amashanyarazi guhuha fuse cyangwa kuzimya.Kunanirwa kwa diode bisanzwe ni umuzunguruko mugufi muri +12 volt cyangwa -5 volt isohoka ikosora.Bimwe muribi byananiranye birashobora guterwa no gukoresha ibisubizo bya +12 cyangwa -5 volt.Umuvuduko mwinshi winjiza diode urashobora kandi kuba mugufi.
Ibyerekeye Ibicuruzwa
LMR16020 ni 60 V, 2 SWITCHER YOROSHE yamanutse igenzura hamwe na MOSFET yo murwego rwo hejuru.Hamwe ninjiza yagutse kuva kuri 4.3 V kugeza kuri 60 V, irakwiriye mubikorwa bitandukanye kuva mu nganda kugera ku modoka kugirango amashanyarazi abone isoko atagengwa.Umuyoboro utuje ni 40 µA muburyo bwo gusinzira, bukwiranye na sisitemu ikoreshwa na bateri.Ultra-hasi 1 µIcyerekezo muburyo bwo guhagarika irashobora kongera igihe cya bateri.Ingano yagutse yo guhinduranya inshuro zituma haba imikorere cyangwa ingano yibigize hanze kugirango ibe nziza.Indishyi zimbere zisobanura ko uyikoresha adafite akazi katoroshye ko gushushanya indishyi.Ibi kandi bigabanya ibice byo hanze byigikoresho.Ibisobanuro bishoboza kwinjiza byemerera koroshya kugenzura no kugenzura ingufu za sisitemu.Igikoresho kandi cyubatsemo ibintu birinda umutekano nkumuzenguruko wikurikiranya, kugabanuka kwumuriro no kuzimya bitewe no gukwirakwiza ingufu nyinshi, no kurinda ibicuruzwa birenze urugero.
LMR16020 iraboneka muri 8-pin ya HSOIC hamwe na padi igaragara kugirango irwanya ubushyuhe buke.