LP87524BRNFRQ1 VQFN-HR26 Ibigize Ibishya Byumwimerere Byageragejwe Byinjijwe Kumuzingi Chip IC LP87524BRNFRQ1
Ibiranga ibicuruzwa
UBWOKO | GUSOBANURIRA |
Icyiciro | Inzira zuzuye (IC) |
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.