Abubuwan LM46001AQPWPRQ1 HTSSOP Abubuwan Sabbin & Na asali Gwajin Haɗe-haɗe na Wutar Lantarki IC Chips
Halayen Samfur
| TYPE | BAYANI |
| Kashi | Haɗin kai (ICs) PMIC - Masu Gudanar da Wutar Lantarki - Masu Gudanar da Canjawar DC DC |
| Mfr | Texas Instruments |
| Jerin | Mota, AEC-Q100, SIMPLE SWITCHER® |
| Kunshin | Tape & Reel (TR) Yanke Tape (CT) Digi-Reel® |
| SPQ | 250T&R |
| Matsayin samfur | Mai aiki |
| Aiki | Mataki-Ƙasa |
| Kanfigareshan fitarwa | M |
| Topology | Baka |
| Nau'in fitarwa | daidaitacce |
| Adadin abubuwan da aka fitar | 1 |
| Wutar lantarki - Input (min) | 3.5V |
| Wutar lantarki - Input (Max) | 60V |
| Voltage - Fitarwa (min / Kafaffen) | 1V |
| Wutar lantarki - Fitarwa (Max) | 28V |
| Yanzu - Fitowa | 1A |
| Mitar - Canjawa | 200kHz ~ 2.2MHz |
| Mai gyara aiki tare | Ee |
| Yanayin Aiki | -40°C ~ 125°C (TJ) |
| Nau'in hawa | Dutsen Surface |
| Kunshin / Case | 16-TSSOP (0.173", Nisa 4.40mm) Faɗin Faɗakarwa |
| Kunshin Na'urar Mai bayarwa | 16-HTSSOP |
| Lambar Samfurin Tushen | Saukewa: LM46001 |
Amfani
Kwatanta fa'idodin haɗaɗɗen maɓalli da na'urori na waje don masu canza kuɗaɗe
1. Na waje da hadedde switches.
Akwai haɗe-haɗe da yawa da maɓalli na waje a cikin hanyoyin canza canjin kuɗi, na ƙarshe galibi ana kiransa masu sarrafa matakin ƙasa ko na buck.Wadannan nau'ikan sauya sheka guda biyu suna da fa'ida da rashin amfani don haka zabi tsakanin su dole ne a yi la'akari da fa'idodi da rashin amfanin su.
Yawancin maɓalli masu haɗaka suna da fa'ida na samun ƙananan ƙididdiga masu mahimmanci, fa'idar da ke ba da damar waɗannan maɓallan don samun ƙananan girman kuma a yi amfani da su a yawancin ƙananan aikace-aikace na yanzu.Saboda yanayin haɗin kai, dukkansu suna nuna kyakkyawan aikin EMI yayin da ake kiyaye su daga yanayin zafi ko wasu tasirin waje waɗanda zasu iya faruwa.Duk da haka, suna kuma da rashin lahani na halin yanzu da iyakokin zafi;yayin da masu sauyawa na waje suna ba da sassauci mafi girma, tare da ikon sarrafa halin yanzu iyakance kawai ta zaɓin FET na waje.A gefe mara kyau, masu sauyawa na waje suna buƙatar ƙarin abubuwan haɗin gwiwa kuma dole ne a kiyaye su daga matsaloli masu yuwuwa.
Don sarrafa igiyoyi masu girma, masu sauyawa kuma dole ne su zama mafi girma, wanda ke sa haɗin kai ya fi tsada yayin da yake ɗaukar sararin samaniya mai mahimmanci akan guntu kuma yana buƙatar babban kunshin.Amfani da wutar lantarki kuma kalubale ne.Saboda haka, za mu iya yanke shawarar cewa don mafi girma fitarwa igiyoyin (yawanci sama da 5A), waje sauya su ne fi so zabi.
2. Daidaitawa da gyaran asynchronous
Mai canzawa mai daidaitawa ko mara daidaitawa tare da sauyawa ɗaya kawai yana buƙatar diode mai ci gaba a cikin ƙaramar hanya, yayin da a cikin mai sauya buck ɗin gyaran gyare-gyare tare da musanya guda biyu sauyawa na biyu yana maye gurbin diode ci gaba da aka ambata a sama.Idan aka kwatanta da mafita na daidaitawa, masu gyara asynchronous suna da fa'idar samar da mafita mai rahusa, amma ingancinsu bai yi yawa ba.
Yin amfani da topology mai daidaitawa tare da haɗa diode na waje na Schottky a layi daya tare da ƙaramin matakin canji zai ba da mafi girman inganci.Mafi girman rikitarwa na wannan ƙananan madaidaicin madaidaicin yana ƙara ƙarfin aiki saboda kasancewar ƙarancin ƙarfin lantarki a cikin yanayin "on" idan aka kwatanta da Schottky diode.A lokacin tsayawar (lokacin da aka kashe duka biyun), diode na Schottky na waje yana da ƙaramin aikin ficewa idan aka kwatanta da diode ɗin ƙofar baya na FET.
3. External vs. diyya na ciki
Gabaɗaya, masu sarrafa buck tare da maɓalli na waje na iya ba da ramuwa na waje kamar yadda suka dace da aikace-aikacen da yawa.Ramuwa na waje yana taimakawa daidaita madaidaicin madaidaicin zuwa sassa daban-daban na waje kamar FETs, inductor, da capacitors na fitarwa.
Ga masu canzawa tare da haɗaɗɗen maɓalli, duka diyya na waje da na ciki ana yawanci amfani da su.Diyya ta ciki tana ba da damar saurin aiwatar da tsarin tabbatar da hawan keke da ƙananan matakan maganin PCB.
Za'a iya taƙaita fa'idodin ramuwa na cikin gida azaman sauƙin amfani (kamar yadda kawai tacewar fitarwa kawai ke buƙatar daidaitawa), ƙira mai sauri, da ƙaramin adadin abubuwan da aka gyara, don haka samar da ƙaramin ƙaramin bayani don ƙananan aikace-aikacen yanzu.Lalacewar su ne cewa ba su da sassauƙa kuma dole ne a karkatar da tacewar fitarwa zuwa diyya ta ciki.Ramuwa na waje yana ba da sassauci mafi girma kuma ana iya daidaita shi bisa ga zaɓin tacewa, yayin da ramuwa na iya zama ƙaramin bayani don manyan igiyoyin ruwa, amma wannan aikace-aikacen ya fi wahala.
4. Sarrafa yanayin halin yanzu tare da sarrafa ƙarfin lantarki
Ana iya sarrafa mai sarrafa kanta a kowane yanayin ƙarfin lantarki ko yanayin halin yanzu.A cikin sarrafa yanayin ƙarfin lantarki, ƙarfin fitarwa yana ba da ra'ayi na farko ga madaidaicin madaidaicin, kuma ana aiwatar da ramuwa ta gaba ta hanyar amfani da ƙarfin shigarwa azaman madauki na biyu don haɓaka halayen amsawa na wucin gadi;a cikin sarrafa yanayin halin yanzu, halin yanzu yana ba da ra'ayi na farko zuwa madauki mai sarrafawa.Dangane da madauki na sarrafawa, wannan halin yanzu na iya zama halin yanzu shigarwa, na yanzu inductor, ko fitarwa na yanzu.Madauki na biyu na sarrafawa shine ƙarfin fitarwa.
Sarrafa yanayin halin yanzu yana da fa'idar samar da amsawar madauki cikin sauri, amma yana buƙatar diyya ga gangara, sauya tacewa don auna na yanzu, da asarar wuta a madauki na ganowa na yanzu.Ikon yanayin wutar lantarki baya buƙatar diyya mai gangara kuma yana ba da amsawar amsa cikin sauri tare da ramuwa na ciyarwa, kodayake ana ba da shawarar amsa ta wucin gadi anan don haɓaka aiki, da'irar ƙara girman kuskure na iya buƙatar babban bandwidth.
Dukansu na halin yanzu da yanayin ƙarfin lantarki suna sarrafa topologies sun dace don kunna don amfani da su a yawancin aikace-aikace.A yawancin lokuta, topologies sarrafa yanayin halin yanzu suna buƙatar ƙarin juriya na gano madauki na yanzu;Yanayin yanayin ƙarfin lantarki tare da haɗaɗɗen ramuwa na gaba-gaba suna cimma kusan amsa madauki na amsa kuma basa buƙatar mai juzu'in gano madauki na yanzu.Bugu da ƙari, ramuwa na gaba-gaba yana sauƙaƙe ƙirar ramuwa.Yawancin ci gaba-lokaci guda ɗaya an samu ta hanyar amfani da yanayin sarrafa wutar lantarki.
5. Sauyawa, MOSFETs da MOSFETs
Sauye-sauyen da aka saba amfani da su a yau an haɓaka MOSFETs kuma akwai masu sauyawa masu saukowa da yawa da masu sarrafawa waɗanda ke amfani da MOSFETs da direbobin PMOSFET.MOSFETs yawanci suna ba da ingantaccen aiki mai tsada fiye da MOSFETs kuma kewayawar direba akan wannan na'urar ya fi rikitarwa.Don kunnawa da kashe NMOSFET, ana buƙatar ƙarfin ƙarfin ƙofar kofa fiye da ƙarfin shigarwar na'urar.Dole ne a haɗa fasaha irin su bootstrapping ko cajin famfo, haɓaka farashi da rage fa'idar farashin farko na MOSFETs.
Game da Samfur
Mai sarrafa LM46001-Q1 mai sauƙin amfani ne mai sauƙin amfani da daidaita matakin-saukar DC-DC mai canzawa wanda zai iya tuki har zuwa 1 A na kaya na yanzu daga ƙarfin shigarwar da ke fitowa daga 3.5 V zuwa 60 V. LM46001-Q1 yana ba da ingantaccen inganci, daidaiton fitarwa da ficewar wutar lantarki a cikin ƙaramin girman bayani.Ana samun dangi mai tsayi a cikin 0.5-A da 2-A zažužžukan na yanzu na lodi a cikin fakitin da suka dace da fil-to-pin.Ana amfani da kulawar yanayin kololuwar yanzu don cimma sauƙi mai sauƙi na madaidaicin ramuwa da iyakancewa ta sake zagayowar.Fasalolin zaɓi kamar mitar sauya shirye-shirye, aiki tare, tuta mai kyau mai ƙarfi, kunna daidaitaccen farawa mai laushi na ciki, farawa mai laushi mai tsayi, da bin diddigi suna ba da dandamali mai sassauƙa da sauƙin amfani don aikace-aikace da yawa.Gudanar da katsewa da rage mita ta atomatik a lodin haske yana haɓaka ingancin nauyin haske.Iyali na buƙatar ƴan abubuwan haɗin waje na waje kuma tsarin fil yana ba da damar sauƙi, mafi kyawun shimfidar PCB.Fasalolin kariya sun haɗa da rufewar zafi, kullewar ƙarancin wutar lantarki na VCC, iyakacin sake zagayowar lokaci, da kariyar gajeriyar kewayawa.Ana samun na'urar LM46001-Q1 a cikin fakitin 16-pin HTSSOP (PWP) (6.6 mm × 5.1 mm × 1.2 mm) tare da 0.65-mm madaurin gubar.Na'urar tana dacewa da fil-to-pin tare da iyalai LM4360x da LM4600x.An inganta sigar LM46001A-Q1 don aikin PFM kuma an ba da shawarar don sabbin ƙira.
