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ibicuruzwa

LP87524BRNFRQ1 VQFN-HR26 Ibigize Ibishya Byumwimerere Byageragejwe Byinjijwe Kumuzingi Chip IC LP87524BRNFRQ1

ibisobanuro bigufi:

Imikorere yo guhindura

Guhindura ni igikoresho gihindura ikimenyetso mubindi bimenyetso.Ikimenyetso ni uburyo cyangwa ubwikorezi bwamakuru ariho, kandi mubikoresho byabikoresho byikora na sisitemu yo kugenzura byikora, ikimenyetso akenshi gihindurwamo ikindi kimenyetso kigereranwa nubunini busanzwe cyangwa ubwinshi bwo guhuza ubwoko bubiri bwibikoresho hamwe, bityo rero uhindura akenshi ni intera ihuza ibikoresho bibiri (cyangwa ibikoresho).


Ibicuruzwa birambuye

Ibicuruzwa

Ibiranga ibicuruzwa

UBWOKO GUSOBANURIRA
Icyiciro Inzira zuzuye (IC)

PMIC

Igenzura rya voltage - DC DC Guhindura

Mfr Ibikoresho bya Texas
Urukurikirane Imodoka, AEC-Q100
Amapaki Tape & Reel (TR)

Kata Tape (CT)

Digi-Reel®

SPQ 3000 T&R
Imiterere y'ibicuruzwa Bikora
Imikorere Intambwe-Hasi
Iboneza Ibisohoka Ibyiza
Topologiya Buck
Ubwoko Ibisohoka Porogaramu
Umubare w'Ibisohoka 4
Umuvuduko - Iyinjiza (Min) 2.8V
Umuvuduko - Iyinjiza (Max) 5.5V
Umuvuduko - Ibisohoka (Min / Bishyizweho) 0.6V
Umuvuduko - Ibisohoka (Max) 3.36V
Ibiriho - Ibisohoka 4A
Inshuro - Guhindura 4MHz
Ikosora Yego
Gukoresha Ubushyuhe -40 ° C ~ 125 ° C (TA)
Ubwoko bwo Kuzamuka Umusozi wubuso, Uruhande rushyushye
Ipaki / Urubanza 26-ImbaragaVFQFN
Ibikoresho byo gutanga ibikoresho 26-VQFN-HR (4.5x4)
Umubare wibicuruzwa shingiro LP87524

1.

Imikorere yo guhindura

Guhindura ni igikoresho gihindura ikimenyetso mubindi bimenyetso.Ikimenyetso ni uburyo cyangwa ubwikorezi bwamakuru ariho, kandi mubikoresho byabikoresho byikora na sisitemu yo kugenzura byikora, ikimenyetso akenshi gihindurwamo ikindi kimenyetso kigereranwa nubunini busanzwe cyangwa ubwinshi bwo guhuza ubwoko bubiri bwibikoresho hamwe, bityo rero uhindura akenshi ni intera ihuza ibikoresho bibiri (cyangwa ibikoresho).

2.

Nigute ushobora guhuza abahindura akazi

Guhindura amafaranga ni uburyo bwo guhinduranya amashanyarazi, icyiciro cyibikoresho birimo icyuma (mubisanzwe MOSFET) kugirango uhindure byihuse uruziga no kuzimya, uku guhinduranya byihuse bitanga umurongo wa kare, niba inzinguzingo yinshingano ya switch yashizwe kuri 50%, ni ukuvuga guhinduranya biri kuri 50% yigihe, impuzandengo ya voltage izaba 50% yinjiza.

Imirambararo ya kare igomba koroherezwa kugirango itange imbaraga zingirakamaro kandi akenshi inductors na capacator zikoreshwa murukurikirane kugirango iki gikorwa kigerweho.Ihuriro rizwi nka LC ntoya-yungurura, aho ibiranga inductor byorohereza ikigezweho kandi capacitor irwanya impinduka zitunguranye muri voltage.Ingaruka ihuriweho itanga umusaruro ugereranije ugereranije na voltage isohoka hamwe na ripple nkeya.Kurugero, niba ibyinjijwemo voltage ari 10V naho switch ikoresha 50% yumuzenguruko, ibisohoka bizaba 5V.

Ikindi kintu gikenewe kigizwe nimpinduka ni diode cyangwa ubundi buryo buhujwe bujyanye na inductor.Ibi ni ukwishyura imikorere ya inductor, aho ikigezweho muri inductor kidashobora guhinduka ako kanya, kirinda imiyoboro ihindura ibyangiritse nuburemere burenze.

Impinduka ya buck irimo kandi umuzenguruko winyongera kugirango wizere ko voltage ihagaze neza.Ihindura ikoresha gahunda ifunze-igenzura igenzura hamwe nibitekerezo bibi kugirango ikurikirane ibisohoka bya voltage kandi ihindure byimazeyo urwego rwinshingano zahinduwe kugirango igenzure ingufu za voltage.

3.

Gutegura ibitekerezo kubihindura amafaranga

impinduramatwara zikora neza cyane, hamwe nibikoresho bimwe bigera kubikorwa birenze 95%.

Guhindura amafaranga birahenze cyane kuruta kugenzura umurongo kurwego rwimbaraga nyinshi, aho igiciro cyo gukonjesha cyumurongo ugenzura gishobora kuba munsi yikiguzi cyo gukoresha amafaranga.

ibisohoka byamafaranga ahindura birimo urusaku, bivuze ko ibisohoka byumurongo ugenzura uhagaze neza kandi bikwiranye nibisabwa bisaba urusaku ruke

abagenzuzi b'umurongo barashobora gusubiza byihuse ibyinjira nibisohoka ugereranije n'amafaranga ahinduka.


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