Choyambirira & Chatsopano ic LMR14030SDDAR switching regulator Integrated Chip Electronics Curcuits

Kufotokozera mwachidule:

LMR14030 ndi 40 V , 3.5 A step down regulator ndi Integrated high-mbali MOSFET .Ndi zotulutsa zambiri kuchokera ku 4 V mpaka 40 V, ndizoyenera kugwiritsa ntchito zosiyanasiyana kuchokera ku mafakitale kupita ku magalimoto opangira magetsi kuchokera kumagwero osayendetsedwa ndi malamulo.Theregulators quiescent current ndi 40 UA mu Sleep-mode, yomwe ili yoyenera pamakina oyendetsedwa ndi batire.Anultra-low 1 WA panopa mu mode shutdown ikhoza kupititsa patsogolo moyo wa batri.Kusiyanasiyana kosinthika kwa switchingfrequency kumapangitsa kuti magwiridwe antchito kapena kukula kwa gawo la extemalcomponent kukwaniritsidwe.Kubweza kwamkati kumatanthauza kuti wogwiritsa ntchito alibe ntchito yotopetsa ya kupanga chipukuta misozi.Izi zimachepetsanso zigawo zakunja za chipangizocho.Kuwongolera kumathandizira kulowetsa kumalola kuphweka kwa zowongolera ndi kutsata mphamvu zamakina.Chipangizochi chilinso ndi zida zodzitchinjiriza zomangidwira monga malire apano ndi kuzungulira, kumva kutentha ndi kuzimitsa chifukwa chakuwonongeka kwamagetsi, komanso kutetezedwa kwamagetsi otulutsa.

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	SIMPLE SWITCHER®
Phukusi	Tape & Reel (TR) Dulani Tepi (CT) Digi-Reel®
SPQ	75Tube
Mkhalidwe wa Zamalonda	Yogwira
Ntchito	Pansi-Pansi
Kukonzekera kwa Zotulutsa	Zabwino
Topology	Buck
Mtundu Wotulutsa	Zosinthika
Chiwerengero cha Zotuluka	1
Mphamvu yamagetsi - Kulowetsa (Mphindi)	4V
Mphamvu yamagetsi - Kulowetsa (Max)	40v ndi
Mphamvu yamagetsi - Kutulutsa (Mphindi / Zokhazikika)	0.8V
Mphamvu yamagetsi - Kutulutsa (Max)	28v ndi
Zamakono - Zotuluka	3.5A
pafupipafupi - Kusintha	200kHz ~ 2.5MHz
Synchronous Rectifier	No
Kutentha kwa Ntchito	-40°C ~ 125°C (TJ)
Mtundu Wokwera	Surface Mount
Phukusi / Mlandu	8-PowerSOIC (0.154", 3.90mm M'lifupi)
Phukusi la chipangizo cha Supplier	8-SO PowerPad
Nambala Yoyambira Yogulitsa	Mtengo wa LMR14030

Kusiyana

Kusiyana pakati pa DC yoyendetsedwa ndi magetsi osinthira ndi magetsi amzere malinga ndi tanthauzo
Kusiyanitsa kwawo kwakukulu ndi mphamvu yoyendetsera magetsi mu chubu (mwina bipolar kapena MOSFET) imagwira ntchito mumtundu wa mzere, pamene magetsi osinthika mu chubu amagwira ntchito posintha.
1.Tanthauzo la magetsi a DC amawongolera magetsi
Mphamvu yosinthira imagwirizana ndi mphamvu yamagetsi.Kusintha magetsi kumadutsa mu chubu chosinthira mayendedwe othamanga kwambiri ndikudula.Mphamvu ya DC kukhala yamagetsi apamwamba kwambiri a AC kupita ku thiransifoma kuti isinthe ma voltage, potero imapanga seti yofunikira kapena gulu lamagetsi!Kunena mwachidule, magetsi osinthira ndi transformer.Kusintha magetsi kumatheka ndi: kukonzanso kukhala DC - kulowetsedwa mu voteji yofunikira AC (makamaka kusintha voteji) - kenako ndikusinthidwa kukhala DC voltage output.

2. Tanthauzo la magetsi a mzere
Mphamvu zamagetsi zofananira ndi thiransifoma yomwe imayamba imachepetsa matalikidwe amagetsi amagetsi osinthika kenako ndikuwongolera kudzera pagawo lowongolera kuti ipeze pulsed mwachindunji.Kenako imasefedwa kuti ipeze voteji ya DC yokhala ndi voteji yaing'ono.Kuti mukwaniritse voteji ya DC yolondola kwambiri, iyenera kuyendetsedwa ndi dera lowongolera ma voltage.
Chachiwiri, kusiyana pakati pa mfundo zogwirira ntchito za DC zomwe zimayang'anira kusintha kwamagetsi ndi magetsi ozungulira

Mfundo yogwirira ntchito yosinthira magetsi.
1. Kulowetsa kwamagetsi a AC kusefedwa ndi kukonzanso kukhala DC;
2. Kupyolera mu PWM yapamwamba kwambiri (pulse width modulation) kapena pulse frequency modulation (PFM) control switching chubu, DC idzawonjezedwa ku choyambirira cha kusintha kwa transformer;
3. Yachiwiri ya kusintha kwa transformer imapangitsa kuti magetsi azithamanga kwambiri, omwe amakonzedwa ndikusefedwa kwa katundu;
4. Gawo lotulutsa limabwezeretsedwa ku dera lolamulira kudzera mu dera linalake kuti liwongolere ntchito ya PWM kuti ikwaniritse zotsatira zokhazikika.

Mfundo yogwirira ntchito yamagetsi amagetsi.
1.Linear magetsi makamaka imaphatikizapo thiransifoma pafupipafupi, fyuluta yokonzanso zotulutsa, dera lowongolera, chitetezo, ndi zina ...
Mphamvu yamagetsi yamagetsi ndi mphamvu yoyamba ya AC kudzera mumagetsi a transformer, kenako kudzera pa rectifier circuit rectifier fyuluta kuti ipeze magetsi osakhazikika a DC.Kuti mukwaniritse kulondola kwakukulu kwamagetsi a DC, magetsi otulutsa ayenera kusinthidwa ndi mayankho amagetsi.Tekinoloje yamagetsi iyi ndi yokhwima kwambiri ndipo imatha kukhazikika kwambiri ndi ma ripple ochepa kwambiri komanso popanda kusokoneza komanso phokoso lomwe magetsi osinthira amakhala nawo.Komabe, kuipa kwake ndikuti pamafunika thiransifoma yayikulu komanso yokulirapo, voliyumu ndi kulemera kwa capacitor yofunikira ya fyuluta nazonso ndizokulirapo, ndipo gawo la ndemanga voteji likugwira ntchito mumtundu wa liniya, kotero pali kutsika kwa voteji pakusintha. chubu, mu linanena bungwe lalikulu ntchito panopa, chifukwa mowa mphamvu ya chubu kusintha ndi lalikulu kwambiri, otsika kutembenuka dzuwa, komanso kukhazikitsa lalikulu kutentha lakuya.Mphamvu imeneyi si yoyenera makompyuta ndi zipangizo zina zofunika, pang'onopang'ono m'malo ndi kusintha magetsi.

DC imayang'anira kusintha kwamagetsi ndi magetsi amtundu wamtundu wamitundu yosiyanasiyana.
Ubwino waukulu ndi kuipa kwa kusintha magetsi
Ubwino: Small kukula, opepuka (voliyumu ndi kulemera kokha 20-30% ya magetsi liniya), dzuwa mkulu (nthawi zambiri 60-70%, pamene liniya magetsi ndi 30-40%) okha odana kusokoneza. , mitundu yosiyanasiyana yamagetsi otulutsa, modularity.
Zoipa: Chifukwa cha magetsi othamanga kwambiri omwe amapangidwa mu inverter circuit, pali kusokoneza kwina kwa zipangizo zozungulira.Kutchinjiriza kwabwino ndi nthaka ndikofunikira.

Liniya mphamvu yamagetsi.
Mkulu bata, ripple yaing'ono, mkulu kudalirika, zosavuta kupanga mu Mipikisano njira linanena bungwe mosalekeza chosinthika magetsi.Choyipa chake ndikuti ndiakuluakulu, ochulukirapo, komanso osakwanira.Mtundu uwu wamagetsi oyendetsedwa bwino ndipo pali mitundu yambiri, kuchokera ku zomwe zimatuluka zimatha kugawidwa m'magawo oyendetsedwa ndi magetsi, magetsi oyendetsedwa ndi magetsi, kukhazikika kwapano mumagetsi okhazikika, komanso apano (awiri-wokhazikika) magetsi.The linanena bungwe mtengo akhoza kugawidwa mu fixed linanena bungwe magetsi, gulu lophimba kusintha mtundu, ndi potentiometer mosalekeza chosinthika angapo.Kuchokera pazotulutsa, chiwonetserochi chitha kugawidwa kukhala mtundu wa pointer point ndi mtundu wowonetsera digito.

Kusiyana pakati pa magetsi osinthira oyendetsedwa ndi DC ndi magetsi amzere pamagwiritsidwe ntchito
1. Kusintha kwamagetsi osiyanasiyana ogwiritsira ntchito
Kusintha magetsi amtundu wamagetsi athunthu, palibe voteji yosiyanitsa, mutha kugwiritsa ntchito mawonekedwe osiyanasiyana ozungulira kuti mukwaniritse zofunikira zosiyanasiyana.Mlingo wosinthira ndi ripple linanena bungwe si mkulu monga liniya magetsi, ndipo dzuwa ndi mkulu.Imafunika zida zambiri zotumphukira komanso kukwera mtengo.Derali ndi lovuta kwambiri.Makina osinthira magetsi oyendetsedwa ndi DC nthawi zambiri amakhala ndi mbali imodzi, kutsogolo, theka la mlatho, kukoka-koka, ndi mitundu yozungulira ya mlatho wathunthu.Kusiyana kwakukulu pakati pawo ndi magetsi oyendetsedwa ndi mzere ndikuti thiransifoma m'derali sigwira ntchito pafupipafupi koma pamakumi angapo a kilohertz mpaka ma megahertz angapo.The chubu mphamvu sagwira ntchito mu liniya zone, koma machulukitsidwe ndi odulidwa zone, mwachitsanzo mu dziko kusintha;mtundu wosinthira wa DC woyendetsedwa ndi magetsi amatchulidwa motero.
2. Kuchuluka kwa kugwiritsa ntchito magetsi a mzere
Mphamvu zamagetsi zoyendetsedwa ndi ma linear nthawi zambiri zimagwiritsidwa ntchito pamagetsi otsika, monga ma LDO amafunikira kukumana ndi kusiyana kwina kwamagetsi.Kuchulukitsa kwamagetsi otulutsa mphamvu ndi kuphulika kuli bwinoko, kugwira ntchito bwino kumakhala kotsika, kufunikira kwa zotumphukira ndizochepa, ndipo mtengo wake ndi wotsika.Dera ndi losavuta.

Za Mankhwala

LMR14030 ndi 40 V, 3.5 A step down regulator ndi Integrated high-mbali MOSFET.Ndi zolowetsa zambiri kuchokera ku 4 V mpaka 40 V, ndizoyenera kugwiritsa ntchito zosiyanasiyana kuchokera kumafakitale kupita kumagalimoto owongolera magetsi kuchokera kumagwero osayendetsedwa.Mphamvu ya regulator ndi 40 µA munjira Yogona, yomwe ili yoyenera pamakina oyendetsedwa ndi batire.Kutsika kwambiri kwa 1 µA komwe kumatsekeka kumatha kutalikitsa moyo wa batri.Ma frequency osinthika osinthika amalola kuti magwiridwe antchito kapena kukula kwa gawo lakunja kukwaniritsidwe.Kulipira kwa loop mkati kumatanthauza kuti wogwiritsa ntchito alibe ntchito yotopetsa yakupanga chipukuta misozi.Izi zimachepetsanso zigawo zakunja za chipangizocho.Kuwongolera molondola kumalola kuphweka kwa zowongolera ndi kutsata mphamvu zamakina.Chipangizocho chilinso ndi zida zodzitchinjiriza monga malire apano ndi kuzungulira, kumva kutentha ndi kutsekeka chifukwa cha kutha kwamphamvu kwambiri, komanso chitetezo chamagetsi otulutsa.

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

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