Sabis na tsayawa ɗaya 2022+ in-stock Original&New IC CHIPS Electronics Components LM25118Q1MH/NOPB
Halayen Samfur
| TYPE | BAYANI |
| Kashi | Haɗin kai (ICs) PMIC - Masu Gudanar da Wutar Lantarki - DC DC Masu Gudanar da Canjawa |
| Mfr | Texas Instruments |
| Jerin | Mota, AEC-Q100 |
| Kunshin | Tube |
| SPQ | 73 Tube |
| Matsayin samfur | Mai aiki |
| Nau'in fitarwa | Direban transistor |
| Aiki | Mataki-Uba, Mataki-ƙasa |
| Kanfigareshan fitarwa | M |
| Topology | Buck, Boost |
| Adadin abubuwan da aka fitar | 1 |
| Matsayin fitarwa | 1 |
| Ƙarfin wutar lantarki - Kayan aiki (Vcc/Vdd) | 3V ~ 42 |
| Mitar - Canjawa | Har zuwa 500kHz |
| Zagayen Ayyuka (Max) | 75% |
| Mai gyara aiki tare | No |
| Agogo Daidaita | Ee |
| Serial Interfaces | - |
| Siffofin sarrafawa | Kunna, Ikon mita, Ramp, Fara mai laushi |
| Yanayin Aiki | -40°C ~ 125°C (TJ) |
| Nau'in hawa | Dutsen Surface |
| Kunshin / Case | 20-PowerTSSOP (0.173", Nisa 4.40mm) |
| Kunshin Na'urar Mai bayarwa | 20-HTSSOP |
| Lambar Samfurin Tushen | Saukewa: LM25118 |
Bambanci
A. Menene bambanci tsakanin mai sarrafa wutar lantarki da mai ƙarawa?
Masu sarrafa wutar lantarki da masu haɓakawa, a ka'ida, masu sarrafa wutar lantarki da masu haɓakawa ba su da bambanci sosai, kuma masu sarrafa wutar lantarki da masu haɓakawa a cikin aiki da amfani, masu sarrafa wutar lantarki da masu haɓakawa suna da babban bambanci.
Voltage regulator ne yafi amfani da irin ƙarfin lantarki rashin zaman lafiya, da kuma irin ƙarfin lantarki hawa da sauka ne in mun gwada da manyan, ta ƙarfin lantarki hawa da sauka ba zai iya saduwa da al'ada amfani da lantarki kayan buƙatun, da kuma ƙarfin lantarki regulator, shi ne hawa da sauka daga cikin ya fi girma, da ƙarfin lantarki stabilization, da ƙarfin lantarki kwanciyar hankali a cikin wani. wasu kewayon dabi'u, don tabbatar da cewa kayan lantarki na iya aiki akai-akai.
Na'urar sarrafa wutar lantarki a cikin tsarin aiki, za a sami ƙarancin wutar lantarki da yawa kamar yadda ƙarfin wutar lantarki ya yi ƙasa sosai, lokacin da ƙarfin lantarki ya yi ƙasa sosai, mai sarrafa wutar lantarki zai kasance kan aikin haɓaka layin wutar lantarki, lokacin da ƙarfin lantarki ya yi yawa, ƙarfin lantarki ya yi yawa. regulator shine ƙarfin lantarki don aikin buck.Don tabbatar da cewa ƙarfin lantarki yana santsi.Don haka mai sarrafa wutar lantarki wanda za'a iya haɓakawa, yana iya zama dala.
Masu haɓakawa, daga sunan za mu iya ganin amfani da samfurin, wato, ƙarfin lantarki don haɓaka saitin kayan aiki, kuma wannan kayan aiki yana ba da aikin haɓaka ƙarfin lantarki kawai.Kuma shine don samar da ƙayyadaddun ƙimar haɓakawa, kamar ƙimar haɓaka haɓakawa shine 100V, lokacin da ƙarfin lantarki daga 300V zuwa 400V, ƙarfin fitarwa na mai haɓaka shima zai kasance daga 400V zuwa 500V, mai haɓakawa cikin amfani da tsari, zai iya haɓakawa kawai. wutar lantarki, amma ba zai iya daidaita wutar lantarki ba, don haka ana amfani da mai haɓakawa gabaɗaya a wuraren da ƙarfin lantarki ya yi tsayi sosai.Idan a cikin mahalli na yawan jujjuyawar wutar lantarki, ƙarfin fitarwa shima yana jujjuyawa.
A gaskiya ma, masu haɓakawa da masu kula da wutar lantarki don kwatanta, saboda aikin biyu ba zai iya ba, ba a amfani da amfani da shi ba, don haka duka biyu ba za su iya yin kwatanta ba, kuma ba za su iya yin hukunci da wanda ya fi kyau da wanda ya fi muni ba, wanda ke buƙatar yanke hukunci. saboda muhalli.Yin amfani da kayan aiki masu dacewa zai iya taka rawa, idan amfani da kuskure ba zai yi aiki ba.
Ko da yake ba za a iya yin la'akari da su biyun mai kyau ko mara kyau ba, idan ba mu da tabbacin ko za a yi amfani da na'ura mai ƙarfafawa ko mai kula da wutar lantarki, idan muna da isassun kudade don kasafin kuɗi, za mu iya zaɓar mai sarrafa wutar lantarki kai tsaye.Wannan shi ne saboda mai sarrafa wutar lantarki ya dace daidai da buƙatun mai haɓakawa da yanayin aikin haɓakawa, ta fuskar amfani da aikin sa.Saboda yanayi daban-daban da amfani, ba za a iya kwatanta mai sarrafawa da ƙarfafawa ba, don haka ba za mu iya cewa wane ne mai kyau da wanda ba shi da kyau.
B.Me ake nufi da gyaran aiki tare?Menene bambanci tsakanin daidaitawa da mara daidaitawa?
Gyaran da aka saba shine amfani da halayen madugu guda ɗaya na diode don gyara halin yanzu, tsarin gyaran baya buƙatar sarrafa ɗan adam.Domin abin da ke gaba na yanzu, ya sake yankewa, amma saboda diode da kansa zai sami halin yanzu ta hanyar raguwar ƙarfin lantarki, tsarin gyarawa zai rasa kuzari, yana haifar da zafi, kuma ƙarfin jujjuya wutar lantarki na wannan matakin gyara zai ragu.
Gyaran aiki tare yana nufin cewa maimakon amfani da diode a cikin sashin gyarawa, ana amfani da MOS maimakon.Saboda MOS yana gudanar da juriya kaɗan, ƙirar zafi yana da ƙarancin kuzari da aka rasa, don haka ƙarfin jujjuyawar wutar lantarki yana ƙaruwa.Tsarin gyaran gyare-gyaren aiki tare shine irin wannan lokacin da ake buƙatar canja wurin makamashi daga gefen farko zuwa na biyu, madaidaicin MOS tube a gefen sakandare yana buɗewa kuma yana ba da damar halin yanzu don gudana.Sabanin haka, lokacin da ba a buƙatar canja wurin makamashi ba, ana kashe bututun MOS, yana hana halin yanzu daga gudana.
Misali, a cikin tashi, lokacin da aka kashe babban bututun sauyawa, ana kunna bututun MOS mai daidaitawa da ke gefen sakandare, yana barin halin yanzu ya gudana.Lokacin da aka buɗe babban bututu mai sauyawa, MOS mai daidaitawa na aiki yana kashe don dakatar da halin yanzu daga gudana kuma na'urar ta atomatik tana adana makamashi.A cikin tsarin gama aiki tare, ya zama dole don sarrafa lokutan kunnawa da kashewa na sassan MOS guda biyu, a madadin buɗewa da rufe su don samar da mai daidaitawa na daidaitawa, don haka ana kiran shi gyara daidaitawa.Tsarin ya fi rikitarwa idan aka kwatanta da gyaran diode.
Game da Samfur
LM25118-Q1 mai faffadan wutar lantarki mai sarrafa buck-Boost yana nuna duk ayyukan da suka wajaba don aiwatar da babban aiki, mai sauƙin farashi mai sarrafa Buck-Boost ta amfani da ƙaramin abubuwan waje.Buck-Boost topology yana kula da ƙa'idodin wutar lantarki lokacin da ƙarfin shigarwar ya kasance ƙasa da ko girma fiye da ƙarfin fitarwa wanda ya sa ya dace musamman don aikace-aikacen mota.LM25118 yana aiki azaman mai sarrafa buck yayin da ƙarfin shigarwar ya fi ƙarfin ƙarfin fitarwa da aka tsara kuma sannu a hankali yana canzawa zuwa yanayin haɓakawa yayin da ƙarfin shigarwar ya kusanci fitarwa.Wannan tsari mai nau'in nau'i biyu yana kiyaye ƙa'ida akan kewayon ƙarfin shigarwar da yawa tare da ingantaccen juzu'i a cikin yanayin buck da fitarwa mara kyalkyali yayin canjin yanayi.Wannan mai sarrafa mai sauƙin amfani ya haɗa da direbobi don babban kuɗaɗen MOSFET da ƙaramin haɓaka MOSFET.Hanyar sarrafawa na mai gudanarwa ta dogara ne akan sarrafa yanayin halin yanzu ta amfani da ramuwar halin yanzu.Kwaikwayo sarrafa yanayin halin yanzu yana rage hayaniyar da'irar juzu'in juzu'i, yana ba da damar ingantaccen iko na ƙananan zagayen ayyukan da ake bukata a cikin aikace-aikacen wutar lantarki mai girma.Ƙarin fasalulluka na kariya sun haɗa da iyaka na yanzu, rufewar zafi, da shigar da kunnawa.Ana samun na'urar a cikin ingantacciyar ƙarfi, fakitin HTSSOP mai 20 mai nuna fakitin mutun da aka fallasa don taimakawa lalatawar zafi.
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