Imwe yekumira sevhisi 2022+ mu-stock Yekutanga & Itsva IC CHIPS Yemagetsi Zvikamu LM25118Q1MH/NOPB
Product Attributes
| TYPE | DESCRIPTION |
| Category | Integrated Circuits (ICs) PMIC - Voltage Regulators - DC DC Switching Controllers |
| Mfr | Texas Instruments |
| Series | Motokari, AEC-Q100 |
| Package | Tube |
| SPQ | 73Tube |
| Product Status | Active |
| Output Type | Transistor Driver |
| Basa | Nhanho-Kumusoro, Nhanho-Pasi |
| Output Configuration | Positive |
| Topology | Buck, Boost |
| Nhamba Yezvinobuda | 1 |
| Zvikamu zvekubuda | 1 |
| Voltage - Supply (Vcc/Vdd) | 3V ~ 42V |
| Frequency - Kuchinja | Kusvika ku500kHz |
| Duty Cycle (Max) | 75% |
| Synchronous Rectifier | No |
| Clock Sync | Ehe |
| Serial Interfaces | - |
| Kudzora Zvinhu | Gonesa, Frequency Control, Ramp, Soft Start |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Nyaya | 20-PowerTSSOP (0.173", 4.40mm Upamhi) |
| Supplier Device Package | 20-HTSSOP |
| Base Product Number | LM25118 |
Musiyano
A. Ndeupi musiyano uripo pakati pemagetsi emagetsi uye booster?
Voltage regulators uye boosters, musimboti, voltage regulators uye boosters hazvina kunyanya kusiyana, uye voltage regulators uye boosters mukushanda uye kushandiswa, voltage regulators uye boosters vane mutsauko mukuru.
Voltage regulator inonyanya kushandiswa kusagadzikana kwevoltage, uye kushanduka kwemagetsi kwakakura, kushanduka kwemagetsi hakugone kusangana nekushandiswa kwakajairwa kwezvinodiwa zvemidziyo yemagetsi, uye voltage regulator, iko kushanduka kweiyo hombe, kudzikama kwemagetsi, kugadzikana kwemagetsi mu humwe huwandu hwehukoshi, kuve nechokwadi chekuti midziyo yemagetsi inogona kushanda zvakajairika.
Iyo voltage regulator mukuita basa, pachave nemhepo yakadzikira pamwe chete nevoltage yakawandisa, kana voltage yanyanya kuderera, voltage regulator ichange iri pamusoro peiyo voltage line boost basa, kana voltage yanyanya kukwira, iyo voltage. regulator ndiyo voltage yebasa rebuck.Kuti uone kuti voltage iri nyore.Saka iyo voltage regulator inogona kukwidziridzwa, inogona zvakare kuve bhaki.
Maboosters, kubva kuzita isu tinogona kuona kushandiswa kwechigadzirwa, kureva, iyo voltage yekusimudzira seti yemidziyo, uye ichi chishandiso chinongopa basa rekuwedzera voltage.Uye kupa iyo yakagadziriswa yekuwedzera kukosha, senge booster boost value iri 100V, kana voltage kubva pa300V kusvika 400V, iyo inobuda voltage yebooster ichabvawo kubva ku400V kusvika 500V, booster mukushandiswa kweiyo maitiro, inogona chete kuwedzera. iyo voltage, asi haigone kudzikamisa voltage, saka iyo booster inowanzo shandiswa munzvimbo dzine voltage yakagadzikana.Kana munzvimbo yekuchinja kwemagetsi kazhinji, iyo inobuda voltage iri kuchinjawo.
Kutaura zvazviri, boosters uye voltage regulators kuenzanisa, nokuti basa rezviviri hazvigoni, kushandiswa hakushandiswi, saka vose havagoni kuita kuenzanisa, uye havagoni kutonga kuti ndiani ari nani uye ndiani akaipa, inoda kutongwa. nokuda kwezvakatipoteredza.Kushandisa midziyo yakakodzera kunogona kuita basa, kana kushandiswa kusina kunaka, ipapo midziyo haigoni kushanda.
Kunyange zvazvo vaviri vacho vasingakwanisi kutongwa zvakanaka kana zvakaipa, kana tisina chokwadi kana toshandisa booster kana voltage regulator, kana tine mari yakakwana yebhajheji, tinogona kusarudza zvakananga magetsi ekugadzirisa.Izvi zvinodaro nekuti iyo voltage regulator inonyatsoenderana nezvinodiwa zvebooster uye chimiro chebasa rebooster, maererano nekushandiswa kwayo uye kuita.Nekuda kwezvakasiyana nharaunda uye mashandisiro, iyo regulator uye booster haigone kuenzaniswa, saka isu hatigone kutaura kuti ndiani akanaka uye ndiani akaipa.
B.Chii chinorehwa nekunatsiridza kwakafanana?Ndeupi musiyano uripo pakati pe synchronous uye isiri-synchronous?
Iyo yakajairwa kugadzirisa ndeye kushandiswa kweiyo diode's single conductor hunhu kugadzirisa ikozvino, maitiro ekugadzirisa haadi kutonga kwevanhu.Nekuti ikozvino kumberi, reverse kucheka-kubviswa, asi nekuti diode pachayo ichange iine ikozvino kuburikidza nekudonha kwemagetsi, maitiro ekugadzirisa anorasikirwa nesimba, zvichikonzera kupisa, uye simba rekushandurwa kwesimba reiyi nhanho yekugadziridza richadonhedzwa pasi.
Synchronous rectification inoreva kuti pane kushandisa diode muchikamu chekugadzirisa, MOS inoshandiswa panzvimbo.Nekuti iyo MOS inoitisa nekushomeka kushoma, chizvarwa chekupisa ishoma simba rinorasika, saka simba rekushandura simba rinowedzera.Iyo synchronous rectification process ndeyekuti kana simba rekufambisa kubva kudivi rekutanga kuenda kune rechipiri richidikanwa, inoenderana MOS chubhu padivi rechipiri inovhura uye inobvumira ikozvino kuyerera nepakati.Zvakasiyana, kana simba rekufambisa risingadiwi, MOS tube inodzimwa, ichidzivirira ikozvino kubva pakuyerera.
Kuenzanisira, mune inobhururuka, kana iyo huru switching chubhu yakadzimwa, iyo synchronous rectifier MOS chubhu padivi rechipiri inobatidzwa, ichibvumira ikozvino kuyerera.Kana iyo main switching chubhu yavhurwa, iyo synchronous rectifier MOS inodzimwa kuti imise yazvino kuti isayerera uye transformer inochengeta simba.Muchirongwa chekupedzisa, zvinodikanwa kudzora nguva yekubatidza nekuvhara yezvikamu zviviri zveMOS, kuvhura nekuzvivhara kuti zvigadzire synchronous rectifier, saka inonzi synchronous rectification.Iyo nzira yakanyanya kuoma kana ichienzaniswa nekugadzirisa diode.
About Product
Iyo LM25118-Q1 yakakura voltage renji Buck-Boost switching regulator controller inoratidzira ese mabasa anodiwa kuita yepamusoro-inoshanda, inodhura-inoshanda Buck-Boost regulator uchishandisa mashoma ekunze zvikamu.Iyo Buck-Boost topology inochengetedza yakabuda voltage regulation kana iyo yekupinda voltage iri shoma pane kana yakakura kupfuura inobuda voltage ichiita kuti inyanyo fanirwa kushandisirwa mota.Iyo LM25118 inoshanda sebhangi regulator nepo voltage yekupinza yakakura zvakakwana kupfuura yakadzorwa yakabuda voltage uye zvishoma nezvishoma inoshandura kuenda kune buck-boost modhi sezvo magetsi ekupinza anosvika pakubuda.Iyi nzira mbiri-modhi inochengetedza mutemo pamusoro pehuwandu hwakawanda hwekupinza voltages ne optimal conversion performance mu buck mode uye glitch-isina kubuda panguva yemodhiyo shanduko.Uyu mutongi ari nyore kushandisa anosanganisira madhiraivha epamusoro-parutivi bhasi MOSFET uye yakaderera-parutivi inosimudzira MOSFET.Iyo nzira yekudzora ye regulator yakavakirwa pane yazvino modhi yekudzora uchishandisa emulated ikozvino rampu.Emulated yazvino modhi yekudzora inoderedza ruzha senitivity ye pulse-width modulation circuit, ichibvumira kudzora kwakavimbika kwemadiki madiki ebasa anodiwa mukukwirira kwemagetsi maapplication.Mamwe maficha ekudzivirira anosanganisira ikozvino muganho, kudzima kwemafuta, uye yekugonesa yekuisa.Chishandiso ichi chinowanikwa musimba-rakakwidziridzwa, 20-pini HTSSOP pasuru ine yakafumurwa yekufa yakanamatira padhi kubatsira kupisa kupisa.
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