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lihlahisoa

Ncha ea Pele ea LM25118Q1MH/NOPB e Kopantsoeng Circuit IC REG CTRLR BUCK 20TSSOP Ic Chip LM25118Q1MH/NOPB

tlhaloso e khuts'oane:

Melemo.

Ts'ebetso e phahameng: khanyetso ea kahare ea mos tube e nyane haholo mme ho theoha ha voltage ea mmuso ho nyane haholo ho feta ho theoha ha motlakase oa Cosmos pele ho Schottky diode.

Mefokolo.

Botsitso bo sa lekaneng: tlhokahalo ea ho rala potoloho ea koloi, 'me u qobe tube e ka holimo le e ka tlaase ka nako e le' ngoe, potoloho e thata haholoanyane, e bakang botsitso bo sa lekaneng.


Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Litšobotsi tsa Sehlahisoa

MOFUTA TLHALOSO
Sehlopha Lipotoloho tse Kopantsoeng (ICs)

PMIC

Voltage Regulators - DC DC Switching Controllers

Mfr Lisebelisoa tsa Texas
Letoto Likoloi, AEC-Q100
Sephutheloana Tube
SPQ 73 Tu be
Boemo ba Sehlahiswa E sebetsa
Mofuta oa Sephetho Mokhanni oa Transistor
Mosebetsi Phahamisa, Tloha
Tlhophiso ea Sephetho E ntle
Topology Buck, Matlafatsa
Palo ea Litholoana 1
Mekhahlelo ea Sephetho 1
Voltage - Phepelo (Vcc/Vdd) 3V ~ 42V
Khafetsa - Ho fetoha Ho fihlela ho 500kHz
Duty Cycle (Boholo) 75%
Synchronous Rectifier No
Sync oache Ee
Li-serial Interfaces -
Laola Likarolo Noble, Frequency Control, Ramp, Soft Start
Mocheso oa ho sebetsa -40°C ~ 125°C (TJ)
Mofuta oa ho Beha Thaba e kaholimo
Sephutheloana / Taba 20-PowerTSSOP (0.173", 4.40mm Bophara)
Sephutheloana sa Sesebelisoa sa Bafani 20-HTSSOP
Nomoro ea Sehlahisoa sa Motheo LM25118

1. Synchronous bucking

Melemo.

Ts'ebetso e phahameng: khanyetso ea kahare ea mos tube e nyane haholo mme ho theoha ha voltage ea mmuso ho nyane haholo ho feta ho theoha ha motlakase oa Cosmos pele ho Schottky diode.

Mefokolo.

Botsitso bo sa lekaneng: tlhokahalo ea ho rala potoloho ea koloi, 'me u qobe tube e ka holimo le e ka tlaase ka nako e le' ngoe, potoloho e thata haholoanyane, e bakang botsitso bo sa lekaneng.

2. e seng synchronous buck

Melemo.

Ts'ebetso e tlase: Ho theoha ha motlakase oa Schottky diode ho hoholo, ha ho bapisoa le tšebeliso ea matla e hlahisoang ke mos tube

Mefokolo.

Botsitso bo phahameng: ho ke ke ha e-ba le ho tsamaisa ka nako e le 'ngoe ea li-tubes tse ka holimo le tse tlaase.

1: PFM (mokhoa oa ho feto-fetoha ha maqhubu)

Ho fetola bophara ba pulse ho tiile, ka ho fetola makhetlo a mangata a phallo ea pulse, motlakase o hlahisoang o tsitsitse.mofuta oa taolo o na le monyetla oa tšebeliso e tlase ea matla le ha e sebelisoa nako e telele, haholo-holo meroalo e menyane.

2: PWM (Pulse Width Modulation)

Mofuta oa taolo oa PWM o sebetsa hantle haholo 'me o na le ripple le lerata le tsoang hantle.

Ho akaretsa: Ka kakaretso, liphapang tsa ts'ebetso lipakeng tsa li-converter tsa DC-DC tse nang le mekhoa e 'meli e fapaneng ea modulation, PFM le PWM, li tjena.

Maqhubu a PWM, mokhoa oa khetho oa potoloho ea mosebetsi oa PFM.PWM/PFM phetolo ea mofuta oa taolo ea PFM ka mejaro e menyane le ho fetohela ho taolo ea PWM ka mejaro e boima.

3.

Phapano ke efe lipakeng tsa synchronous boost ICs le asynchronous boost ICs?

Phapang e kholo lipakeng tsa synchronous boost ICs le asynchronous boosts ke phapang ea mekhoa ea tokiso.

The synchronous boost IC circuit e sebelisa MOS hobane li-tubes tsa MOS li na le khanyetso e tlase haholo ea kahare sebakeng se bulehileng 'me litahlehelo ts'ebetsong ea tokiso li tlase haholo, ka hona ts'ebetso ea ho matlafatsa synchronous e phahame mme tlhahiso ea mocheso e tlase.E ka sebelisoa bakeng sa lisebelisoa tse matlafatsang matla a phahameng.

Li-circuits tsa Asynchronous boost IC li sebelisa diode bakeng sa tokiso.Li-diode li na le ho theoha ha matla a marang-rang nakong ea ho lokisa.Ha boemo ba hona joale bo phahame ts'ebetsong ea tokiso, ho ba le tahlehelo e phahameng.Hangata, matla a ke ke a ba matla a phahameng.


  • E fetileng:
  • E 'ngoe:

  • Ngola molaetsa wa hao mona mme o re romele wona