LM46001AQPWPRQ1 Ibice bya HTSSOP Ibishya & Umwimerere Byageragejwe Byinjijwe Kumuzunguruko IC Chips Electronics

LM46001AQPWPRQ1 Ibigize HTSSOP Ibishya & Umwimerere Byageragejwe Byinjijwemo Umuzunguruko IC Chips Electronics Ishusho Yerekana

ibisobanuro bigufi:

Igenzura rya LM46001-Q1 nuburyo bworoshye-gukoresha-guhuza intambwe-hasi ya DC-DC ihindura ubushobozi bwo gutwara kugeza kuri 1 A yumutwaro uva mumashanyarazi yinjira kuva kuri 3.5 V kugeza kuri 60 V. LM46001-Q1 itanga imikorere idasanzwe, ibisohoka neza hamwe na voltage yamanutse mubunini buto bwo gukemura.Umuryango mugari uraboneka muri 0.5-A na 2-Umutwaro wubu muburyo bwa pin-to-pin.
Impinga yuburyo bugenzurwa ikoreshwa kugirango igere ku buryo bworoshye bwo kugenzura indishyi no kuzenguruka kugarukira.Ibintu bidahitamo nka progaramu ishobora guhinduranya inshuro nyinshi, guhuza, imbaraga-nziza ibendera, kugushoboza neza, gutangira byoroshye imbere, kwaguka byoroshye gutangira, no gukurikirana bitanga uburyo bworoshye kandi bworoshye-bwo gukoresha urubuga rwinshi rwa porogaramu.Imiyoboro idahagarara hamwe no kugabanya inshuro nyinshi kumitwaro yumucyo bizamura imikorere yumucyo.Umuryango urasaba ibice bike byo hanze kandi pin gahunda itanga uburyo bworoshye, bwiza bwa PCB.Ibiranga kurinda birimo guhagarika ubushyuhe, VCC undervoltage lockout, cycle by-cycle limit, hamwe nibisohoka bigufi birinda.Igikoresho cya LM46001-Q1 kiraboneka muri paki 16-pin ya HTSSOP (PWP) (6,6 mm × 5.1 mm × 1,2 mm) hamwe na 0,65-mm yo kuyobora.Igikoresho ni pin-to-pin ihuza imiryango ya LM4360x na LM4600x.LM46001A-Q1 verisiyo itezimbere kubikorwa bya PFM kandi irasabwa kubishushanyo bishya.

Ohereza imeri kuri twe Kuramo urupapuro

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, SWITCHER® YOROSHE
Amapaki	Tape & Reel (TR) Kata Tape (CT) Digi-Reel®
SPQ	250T & R.
Imiterere y'ibicuruzwa	Bikora
Imikorere	Intambwe-Hasi
Iboneza Ibisohoka	Ibyiza
Topologiya	Buck
Ubwoko Ibisohoka	Guhindura
Umubare w'Ibisohoka	1
Umuvuduko - Iyinjiza (Min)	3.5V
Umuvuduko - Iyinjiza (Max)	60V
Umuvuduko - Ibisohoka (Min / Bishyizweho)	1V
Umuvuduko - Ibisohoka (Max)	28V
Ibiriho - Ibisohoka	1A
Inshuro - Guhindura	200kHz ~ 2.2MHz
Ikosora	Yego
Gukoresha Ubushyuhe	-40 ° C ~ 125 ° C (TJ)
Ubwoko bwo Kuzamuka	Umusozi
Ipaki / Urubanza	16-TSSOP (0.173 ", Ubugari bwa 4.40mm) Padiri Yerekanwe
Ibikoresho byo gutanga ibikoresho	16-HTSSOP
Umubare wibicuruzwa shingiro	LM46001

Ibyiza

Kugereranya ibyiza byo guhinduranya hamwe no guhinduranya hanze kubihindura amafaranga
1. Inyuma yo hanze hamwe na sisitemu yahinduwe.
Hano haribintu byinshi byahujwe hamwe nu guhinduranya hanze mubisubizo byamafaranga, ibya nyuma bikunze kwitwa intambwe-hasi cyangwa kugenzura amafaranga.Ubu bwoko bubiri bwa switch bufite ibyiza nibibi bityo rero guhitamo hagati yabyo bigomba gukorwa hamwe nibyiza nibibi mubitekerezo.
Guhindura byinshi byahujwe bifite inyungu zo kugira ibice bike bibarwa, akarusho gatuma aba bahindura bafite ubunini buto kandi bugakoreshwa mubisabwa byinshi-bigezweho.Bitewe na kamere yabo ihuriweho, bose bagaragaza imikorere myiza ya EMI mugihe bakingiwe ubushyuhe bwinshi cyangwa izindi ngaruka zishobora kubaho.Ariko, bafite kandi imbogamizi zubu nubushyuhe bwumuriro;mugihe impinduka zo hanze zitanga ibintu byoroshye guhinduka, hamwe nubushobozi bwogukoresha bugarukira gusa kumahitamo yo hanze.Kuruhande rubi, guhinduranya hanze bisaba ibice byinshi kandi bigomba kurindwa ibibazo bishobora kuvuka.
Kugirango ukemure ibintu byisumbuyeho, abahindura nabo bagomba kuba binini, bigatuma kwishyira hamwe bihenze kuko bifata umwanya munini kuri chip kandi bisaba pake nini.Gukoresha ingufu nabyo ni ikibazo.Kubwibyo, dushobora kwemeza ko kubisohoka bisohoka cyane (mubisanzwe hejuru ya 5A), guhinduranya hanze nibyo byatoranijwe.

2. Guhuza hamwe no gukosora bidahwitse
Ihindurangingo idahwitse cyangwa idahuje ikosora buck ihinduranya hamwe na switch imwe gusa isaba gukomeza diode mu nzira yo hasi, mugihe mugihe kimwe cyo gukosora buck ihinduranya hamwe na sisitemu ebyiri icyerekezo cya kabiri gisimbuza diode ikomeza kuvugwa.Ugereranije nibisubizo bihuye, ikosora idahwitse ifite ibyiza byo gutanga igisubizo gihendutse, ariko imikorere yabyo ntabwo iri hejuru cyane.
Gukoresha syncronique ikosora topologiya no guhuza diode yo hanze ya Schottky ugereranije na switch yo murwego rwo hasi bizatanga imikorere myiza.Uburemere buringaniye bwuru rwego rwo hasi byongera imikorere bitewe nuko habaho kugabanuka kwa voltage yo hasi muri leta "kuri" ugereranije na diode ya Schottky.Mugihe cyo guhagarara (mugihe ibintu byombi byazimye), diode yo hanze ya Schottky ifite imikorere yo guta ishuri ugereranije ninjoro yimbere yimbere ya FET.

3. Indishyi zo hanze nindishyi zimbere
Muri rusange, abagenzuzi ba buck hamwe na sisitemu yo hanze barashobora gutanga indishyi zo hanze kuko zibereye murwego runini rwa porogaramu.Indishyi zo hanze zifasha guhuza igenzura ryibice bitandukanye byo hanze nka FETs, inductors, hamwe na capacator zisohoka.
Kubahindura hamwe bahinduranya, byombi indishyi zo hanze nizimbere zikoreshwa.Indishyi zimbere zituma inzira yihuta yo kwemeza hamwe nubunini bwa PCB.
Ibyiza byindishyi zimbere birashobora kuvunagurwa nkuburyo bworoshye bwo gukoresha (nkibisohoka gusa muyunguruzi bigomba gushyirwaho), gushushanya byihuse, hamwe numubare muto wibigize, bityo bigatanga igisubizo gito-cyibisubizo kubisabwa biriho ubu.Ingaruka ni uko zidahinduka kandi ibisohoka muyunguruzi bigomba kugengwa nindishyi zimbere.Indishyi zo hanze zitanga ibintu byoroshye kandi birashobora guhinduka ukurikije ibyasohotse byatoranijwe, mugihe indishyi zishobora kuba igisubizo gito kumigezi minini, ariko iyi progaramu iragoye.

4. Kugenzura-uburyo-bugezweho na voltage-uburyo bwo kugenzura
Igenzura ubwaryo rishobora kugenzurwa haba muburyo bwa voltage cyangwa muburyo bwubu.Muburyo bwo kugenzura uburyo bwa voltage, ibisohoka voltage itanga ibitekerezo byibanze kubigenzura, kandi indishyi zisanzwe zishyirwa mubikorwa ukoresheje voltage yinjiza nkigice cya kabiri cyo kugenzura kugirango uzamure imyitwarire yigihe gito;muburyo bugezweho bwo kugenzura, ikigezweho gitanga ibitekerezo byibanze kugenzura.Ukurikije igenzura ryizunguruka, iyi ishobora kuba iyinjiza, iyinjiza, cyangwa ibisohoka.Igice cya kabiri cyo kugenzura ni ibisohoka voltage.
Kugenzura uburyo bugezweho bifite inyungu zo gutanga igisubizo cyihuse cyibisubizo, ariko bisaba indishyi zihanamye, guhinduranya urusaku rwo gushungura kubipimo byubu, hamwe no gutakaza ingufu mumashanyarazi.Igenzura ryumubyigano ntirisaba indishyi zihanamye kandi ritanga igisubizo cyihuse cyo gusubiza hamwe nindishyi zitangwa, nubwo igisubizo cyinzibacyuho gisabwa hano kunoza imikorere, umuzunguruko wikosa ushobora gusaba umurongo mwinshi.
Byombi bigezweho na voltage uburyo bwo kugenzura topologiya ikwiranye no guhuza gukoreshwa mubisabwa byinshi.Mubihe byinshi, imiterere-yuburyo bugenzura topologiya isaba iyindi mikorere ya loop detection irwanya;voltage-moderi ya topologiya hamwe nindishyi zishyizwe hamwe zigera kubintu bisa nkibisubizo byisubiza kandi ntibisaba ko habaho ibizunguruka.Byongeye kandi, kugaburira-kugaburira byoroheje igishushanyo mbonera.Amajyambere menshi yicyiciro kimwe yatahuwe hakoreshejwe voltage-moderi igenzura topologiya.

5. Guhindura, MOSFETS na MOSFETS
Guhindura mubikoreshwa bisanzwe uyumunsi byongerewe MOSFETs kandi hariho byinshi byo kumanuka / kumanuka-kumanuka no kugenzura bikoresha MOSFETs na PMOSFET.MOSFETs mubisanzwe itanga imikorere ihendutse kuruta MOSFETs kandi umushoferi wumuzunguruko kuri iki gikoresho biragoye.Guhindura NMOSFET kuri no kuzimya, voltage yumuryango irenze iyinjira ryinjira mubikoresho.Tekinoroji nka bootstrapping cyangwa pompe yishyurwa igomba guhuzwa, kongera igiciro no kugabanya inyungu yambere yikiguzi cya MOSFETs.

Ibyerekeye Ibicuruzwa

Igenzura rya LM46001-Q1 nuburyo bworoshye-gukoresha-guhuza intambwe-hasi ya DC-DC ihindura ubushobozi bwo gutwara kugeza kuri 1 A yumutwaro uva mumashanyarazi yinjira kuva kuri 3.5 V kugeza kuri 60 V. LM46001-Q1 itanga imikorere idasanzwe, ibisohoka neza hamwe na voltage yamanutse mubunini buto bwo gukemura.Umuryango mugari uraboneka muri 0.5-A na 2-Umutwaro wubu muburyo bwa pin-to-pin.Impinga yuburyo bugenzurwa ikoreshwa kugirango igere ku buryo bworoshye bwo kugenzura indishyi no kuzenguruka kugarukira.Ibintu bidahitamo nka progaramu ishobora guhinduranya inshuro nyinshi, guhuza, imbaraga-nziza ibendera, kugushoboza neza, gutangira byoroshye imbere, kwaguka byoroshye gutangira, no gukurikirana bitanga uburyo bworoshye kandi bworoshye-bwo gukoresha urubuga rwinshi rwa porogaramu.Imiyoboro idahagarara hamwe no kugabanya inshuro nyinshi kumitwaro yumucyo bizamura imikorere yumucyo.Umuryango urasaba ibice bike byo hanze kandi pin gahunda itanga uburyo bworoshye, bwiza bwa PCB.Ibiranga kurinda birimo guhagarika ubushyuhe, VCC undervoltage lockout, cycle-by-cycle limit, and output short-circuit protection.Igikoresho cya LM46001-Q1 kiraboneka muri paki 16-pin ya HTSSOP (PWP) (6,6 mm × 5.1 mm × 1,2 mm) hamwe na 0,65-mm yo kuyobora.Igikoresho ni pin-to-pin ihuza imiryango ya LM4360x na LM4600x.LM46001A-Q1 verisiyo itezimbere kubikorwa bya PFM kandi irasabwa kubishushanyo bishya.

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