LM46001AQPWPRQ1 HTSSOP Zigawo Zatsopano & Zoyambirira Zoyesedwa Integrated Circuit IC Chips Electronics

Kufotokozera mwachidule:

LM46001-Q1 regulator ndi yosavuta kugwiritsa ntchito synchronous step-down converter DC-DC converter yomwe imatha kuyendetsa mpaka 1 A ya katundu wamakono kuchokera pamagetsi olowetsa kuchokera ku 3.5 V mpaka 60 V. LM46001-Q1 imapereka mphamvu zapadera, linanena bungwe lolondola ndi dontho-out voteji mu yaing'ono yankho kukula.Banja lokulirapo likupezeka muzosankha zaposachedwa za 0.5-A ndi 2-A mumapaketi ogwirizana ndi pini-to-pini.
Peak panopa mode control amagwiritsidwa ntchito kuti apeze chipukuta misozi chosavuta chowongolera ndikuchepetsa kwanthawi zonse.Zosankha zomwe mungakonde monga ma frequency osinthika, kugwirizanitsa, mbendera-yabwino, kuwongolera molondola, chiyambi chofewa chamkati, kuyambika kofewa, ndi kutsatira kumapereka nsanja yosinthika komanso yosavuta kugwiritsa ntchito pazinthu zingapo.Kuwongolera kosalekeza ndi kuchepetsa ma frequency odziwikiratu pa katundu wopepuka kumapangitsa kuti kuwalako kuyende bwino.Banja limafuna zigawo zakunja zochepa ndipo kakonzedwe ka pini kumalola kuti PCB ikhale yosavuta, yokwanira bwino.Zida zodzitchinjiriza zikuphatikiza kutseka kwamafuta, kutsekeka kwa VCC undervoltage, malire apano mozungulira, komanso chitetezo chafupipafupi.Chipangizo cha LM46001-Q1 chikupezeka mu phukusi la 16-pin HTSSOP (PWP) (6.6 mm × 5.1 mm × 1.2 mm) ndi 0.65-mm kutsogolo.Chipangizochi ndi pin-to-pini chogwirizana ndi LM4360x ndi LM4600x mabanja.Mtundu wa LM46001A-Q1 ndiwokometsedwa kuti ugwire ntchito ya PFM ndikupangira mapangidwe atsopano.

Titumizireni imelo Tsitsani Datesheet

Tsatanetsatane wa Zamalonda

Zogulitsa Tags

Makhalidwe a Zamalonda

TYPE	DESCRIPTION
Gulu	Magawo Ophatikizana (ICs) PMIC - Voltage Regulators - DC DC Switching Regulators
Mfr	Texas Instruments
Mndandanda	Zagalimoto, AEC-Q100, SIMPLE SWITCHER®
Phukusi	Tape & Reel (TR) Dulani Tepi (CT) Digi-Reel®
SPQ	250T&R
Mkhalidwe wa Zamalonda	Yogwira
Ntchito	Pansi-Pansi
Kukonzekera kwa Zotulutsa	Zabwino
Topology	Buck
Mtundu Wotulutsa	Zosinthika
Chiwerengero cha Zotuluka	1
Mphamvu yamagetsi - Kulowetsa (Mphindi)	3.5V
Mphamvu yamagetsi - Kulowetsa (Max)	60v ndi
Mphamvu yamagetsi - Kutulutsa (Mphindi / Zokhazikika)	1V
Mphamvu yamagetsi - Kutulutsa (Max)	28v ndi
Zamakono - Zotuluka	1A
pafupipafupi - Kusintha	200kHz ~ 2.2MHz
Synchronous Rectifier	Inde
Kutentha kwa Ntchito	-40°C ~ 125°C (TJ)
Mtundu Wokwera	Surface Mount
Phukusi / Mlandu	16-TSSOP (0.173", 4.40mm Width) Pad Yowonekera
Phukusi la chipangizo cha Supplier	16-HTSSOP
Nambala Yoyambira Yogulitsa	Mtengo wa LM46001

Ubwino wake

Kuyerekeza ubwino wa zosinthira zophatikizika ndi masiwichi akunja osinthira ndalama
1. Zosintha zakunja motsutsana ndi zophatikizika.
Pali masiwichi angapo ophatikizika ndi masiwichi akunja mumayankho osinthira a buck, omaliza omwe nthawi zambiri amatchedwa otsika-pansi kapena owongolera ndalama.Mitundu iwiriyi yosinthira ili ndi zabwino ndi zovuta zake ndipo chifukwa chake kusankha pakati pawo kuyenera kupangidwa poganizira zabwino ndi zovuta zake.
Zosintha zambiri zophatikizika zimakhala ndi ubwino wokhala ndi chiwerengero chochepa cha chigawo, ubwino umene umalola masinthidwewa kukhala ndi kukula kochepa ndikugwiritsidwa ntchito pazinthu zambiri zotsika.Chifukwa cha chikhalidwe chawo chophatikizika, onse amasonyeza bwino ntchito ya EMI pamene akutetezedwa ku kutentha kwakukulu kapena zina zakunja zomwe zingachitike.Komabe, amakhalanso ndi vuto la malire apano ndi otentha;pomwe ma switch akunja amapereka kusinthasintha kwakukulu, ndi kuthekera kwapakali pano kumangosankhidwa ndi ma FET akunja.Kumbali yoyipa, zosintha zakunja zimafuna zigawo zambiri ndipo ziyenera kutetezedwa ku zovuta zomwe zingachitike.
Kuti agwiritse ntchito mafunde apamwamba, zosinthazo ziyeneranso kukhala zazikulu, zomwe zimapangitsa kuti kugwirizanitsa kukhala kokwera mtengo kwambiri chifukwa kumatenga malo amtengo wapatali pa chip ndipo kumafuna phukusi lalikulu.Kugwiritsa ntchito mphamvu kumakhalanso kovuta.Chifukwa chake, titha kunena kuti pamafunde apamwamba (nthawi zambiri pamwamba pa 5A), masiwichi akunja ndi omwe amakonda.

2. Kuphatikizana ndi kukonzanso kosasinthika
Chosinthira cha asynchronous kapena chosagwirizana ndi chosinthira chimodzi chokha chimafunikira diode yopitilira munjira yotsika, pomwe mu chosinthira cha buck chosinthika chokhala ndi masiwichi awiri chosinthira chachiwiri chimalowa m'malo mwa diode yopitilira yomwe tatchulayi.Poyerekeza ndi ma synchronous solutions, asynchronous rectifiers ali ndi mwayi wopereka njira yotsika mtengo, koma mphamvu zawo sizokwera kwambiri.
Kugwiritsa ntchito synchronous rectifier topology ndikulumikiza diode yakunja ya Schottky molumikizana ndi masinthidwe otsika kumapereka mphamvu kwambiri.Kuvuta kwapamwamba kwa masinthidwe otsikawa kumawonjezera magwiridwe antchito chifukwa cha kuchepa kwamagetsi otsika mu "pa" boma poyerekeza ndi diode ya Schottky.Munthawi yogulitsira (pamene masiwichi onse azimitsidwa), diode yakunja ya Schottky imakhala ndi ntchito yotsika poyerekeza ndi diode yamkati yakumbuyo ya FET.

3. Kunja vs
Kawirikawiri, olamulira a buck omwe ali ndi zosintha zakunja angapereke chipukuta misozi chakunja chifukwa ali oyenerera ntchito zosiyanasiyana.Kulipira kwakunja kumathandizira kusintha mawonekedwe owongolera kuzinthu zosiyanasiyana zakunja monga ma FET, ma inductors, ndi ma capacitor otulutsa.
Kwa otembenuza okhala ndi masiwichi ophatikizika, chipukuta misozi chakunja ndi chamkati chimagwiritsidwa ntchito.Malipiro amkati amathandizira kutsimikizika kwazinthu mwachangu komanso makulidwe ang'onoang'ono a PCB.
Ubwino wa chipukuta misozi chamkati ukhoza kufotokozedwa mwachidule ngati kugwiritsa ntchito mosavuta (monga momwe fyuluta yokhayo iyenera kukhazikitsidwa), mapangidwe ofulumira, ndi zigawo zochepa, motero amapereka yankho laling'ono la ntchito zochepa zamakono.Zoyipa zake ndizakuti ndizosasinthika ndipo fyuluta yotulutsa iyenera kukhala yocheperako kumalipiro amkati.Kulipira kwakunja kumapereka kusinthasintha kwakukulu ndipo kungasinthidwe molingana ndi fyuluta yosankhidwa, pamene malipiro angakhale njira yaying'ono ya mafunde akuluakulu, koma izi zimakhala zovuta kwambiri.

4. Ulamuliro wamasiku ano motsutsana ndi ma voltage-mode control
The regulator palokha akhoza kulamulidwa kaya voteji mode kapena panopa mode.Mu control mode control, voltage yotulutsa imapereka mayankho oyambira ku loop yowongolera, ndipo chiwongolero cha feedforward nthawi zambiri chimakhazikitsidwa pogwiritsa ntchito magetsi olowera ngati njira yachiwiri yowongolera kuti apititse patsogolo kuyankha kwakanthawi;mu ulamuliro wamakono wamakono, zamakono zimapereka ndemanga zoyambira ku loop yolamulira.Kutengera ndi kuzungulira kowongolera, izi zitha kukhala zolowetsa pano, inductor current, kapena zotuluka.Njira yachiwiri yowongolera ndi mphamvu yotulutsa.
Kuwongolera kwamakono kuli ndi ubwino wopereka mayankho ofulumira, koma kumafuna malipiro otsetsereka, kusintha masefa a phokoso kuti ayesedwe panopa, ndi kutayika kwa mphamvu pamtundu wamakono wodziwira.Kuwongolera kwamagetsi amagetsi sikufuna kubweza kotsetsereka ndipo kumapereka kuyankha mwachangu kwa loop ndi kubweza kwa feedforward, ngakhale kuyankha kwakanthawi kumalimbikitsidwa pano kuti tiwongolere magwiridwe antchito, gawo lokulitsa zolakwika lingafunike bandwidth yapamwamba.
Ma topology apano ndi ma voltage mode control ndi oyenera kuwongolera kuti agwiritsidwe ntchito pamapulogalamu ambiri.Nthawi zambiri, topologies zowongolera zamakono zimafunikira choletsa chodziwikiratu cha loop;ma voltage-mode topology okhala ndi integrated feed-forward compensation amakwaniritsa pafupifupi kuyankha kofanana kwa loop ndipo safuna chotchinga chamakono cha loop.Kuphatikiza apo, kubweza ndalama kumathandizira kukonza zolipirira.Zotukuka zambiri zagawo limodzi zachitika pogwiritsa ntchito ma voltage-mode control topology.

5. Kusintha, MOSFETs ndi MOSFETs
Zosintha zomwe zimagwiritsidwa ntchito masiku ano ndizowonjezera ma MOSFET ndipo pali otembenuza ambiri otsika / otsika ndi owongolera omwe amagwiritsa ntchito ma MOSFET ndi madalaivala a PMOSFET.Ma MOSFET nthawi zambiri amapereka magwiridwe antchito otsika mtengo kuposa ma MOSFETs ndipo mayendedwe oyendetsa pa chipangizochi ndi ovuta kwambiri.Kuti muyatse ndi kuzimitsa NMOSFET, magetsi okwera pachipata kuposa magetsi olowera pa chipangizocho amafunikira.Matekinoloje monga bootstrapping kapena mapampu opangira ma charger ayenera kuphatikizidwa, kukulitsa mtengo ndikuchepetsa mtengo woyambira wa MOSFET.

Za Mankhwala

LM46001-Q1 regulator ndi yosavuta kugwiritsa ntchito synchronous step-down converter DC-DC converter yomwe imatha kuyendetsa mpaka 1 A ya katundu wamakono kuchokera pamagetsi olowetsa kuchokera ku 3.5 V mpaka 60 V. LM46001-Q1 imapereka mphamvu zapadera, linanena bungwe lolondola ndi dontho-out voteji mu yaing'ono yankho kukula.Banja lokulirapo likupezeka muzosankha zaposachedwa za 0.5-A ndi 2-A mumapaketi ogwirizana ndi pini-to-pini.Peak panopa mode control amagwiritsidwa ntchito kuti apeze chipukuta misozi chosavuta chowongolera ndikuchepetsa kwanthawi zonse.Zosankha zomwe mungakonde monga ma frequency osinthika, kugwirizanitsa, mbendera-yabwino, kuwongolera molondola, chiyambi chofewa chamkati, kuyambika kofewa, ndi kutsatira kumapereka nsanja yosinthika komanso yosavuta kugwiritsa ntchito pazinthu zingapo.Kuwongolera kosalekeza ndi kuchepetsa ma frequency odziwikiratu pa katundu wopepuka kumapangitsa kuti kuwalako kuyende bwino.Banja limafuna zigawo zakunja zochepa ndipo kakonzedwe ka pini kumalola kuti PCB ikhale yosavuta, yokwanira bwino.Zida zodzitchinjiriza zikuphatikiza kutseka kwamafuta, kutsekeka kwa VCC undervoltage, malire apano ndi kuzungulira, komanso chitetezo chafupipafupi.Chipangizo cha LM46001-Q1 chikupezeka mu phukusi la 16-pin HTSSOP (PWP) (6.6 mm × 5.1 mm × 1.2 mm) ndi 0.65-mm kutsogolo.Chipangizochi ndi pin-to-pini chogwirizana ndi LM4360x ndi LM4600x mabanja.Mtundu wa LM46001A-Q1 ndiwokometsedwa kuti ugwire ntchito ya PFM ndikupangira mapangidwe atsopano.

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