Umhlinzeki We-Circuit Electronics Edidiyelwe Omusha futhi Wangempela Kusevisi Ye-Bom Yesitokwe TPS22965TDSGRQ1
Izimfanelo Zomkhiqizo
| UHLOBO | DESCRIPTION |
| Isigaba | Izifunda Ezihlanganisiwe (ICs) |
| Mfr | Texas Instruments |
| Uchungechunge | Ezezimoto, AEC-Q100 |
| Iphakheji | I-Tape & Reel (TR) Cut Tape (CT) I-Digi-Reel® |
| SPQ | 3000 T&R |
| Isimo somkhiqizo | Iyasebenza |
| Shintsha Uhlobo | Inhloso Ejwayelekile |
| Inombolo Yemiphumela | 1 |
| Isilinganiso - Okokufaka:Okukhiphayo | 1:1 |
| Ukucushwa Kokukhiphayo | Uhlangothi Oluphezulu |
| Uhlobo Lokukhiphayo | Isiteshi se-N |
| Isixhumi esibonakalayo | Khanyisa cisha |
| I-Voltage - Layisha | 2.5V ~ 5.5V |
| I-Voltage - Supply (Vcc/Vdd) | 0.8V ~ 5.5V |
| Okwamanje - Okukhiphayo (Ubukhulu) | 4A |
| I-Rds On (Typ) | 16 mhm |
| Uhlobo Lokufaka | Okungaguquli |
| Izici | Ukukhipha Ukulayisha, Izinga Lokubulala Lilawulwa |
| Ukuvikelwa Kwephutha | - |
| Izinga Lokushisa Lokusebenza | -40°C ~ 105°C (TA) |
| Uhlobo Lokukhweza | INtaba Engaphezulu |
| Iphakheji Yedivayisi Yomhlinzeki | 8-WSON (2x2) |
| Iphakheji / Ikesi | 8-WFDFN Iphedi Eveziwe |
| Inombolo Yomkhiqizo Eyisisekelo | I-TPS22965 |
Amaswishi okulayisha awonga isikhala, amaswishi kagesi ahlanganisiwe.Lezi zinguquko zingasetshenziselwa 'ukunqamula' amasistimu angaphansi alambele amandla (uma ukumodi yokulinda) noma ukulawula indawo yokulayisha ukuze kube lula ukulandelana kwamandla.Amaswishi okulayisha adalwe lapho ama-smartphones ethandwa;njengoba amafoni engeza ukusebenza okwengeziwe, ayedinga amabhodi esekethe aphezulu futhi isikhala saba yindlala.Amaswishi okulayisha ahlanganisiwe axazulula le nkinga: ukubuyisela isikhala sebhodi kumklami ngenkathi kuhlanganisa ukusebenza okwengeziwe.
Yiziphi izinzuzo zokushintshwa komthwalo ohlanganisiwe uma kuqhathaniswa nesekethe ehlukile?
Isixazululo esijwayelekile esihlukanisayo siqukethe i-P-channel metal oxide semiconductor field effect transistor (MOSFET), i-MOSFET yesiteshi esingu-N, kanye nokumelana nokudonsela phezulu.Nakuba lesi kuyisixazululo esifakazelwe sokushintshwa kwamareyili kagesi, sinonyawo olukhulu.Izixazululo eziningi ezihlangene seziyatholakala, njengezishintshi zokulayisha ezifana ne-Texas Instruments TPS22915 - zinendawo engaphansi kuka-1mm2!Umfanekiso wesi-2 ubonisa ukuqhathaniswa kokusetshenziswa kwekhasimende elilodwa nalesi sixazululo se-TI, esivumele i-TPS22968 ukuthi yehlise umkhondo wayo ngaphezu kuka-80% kuyilapho ihlanganisa izici eziningi ezifana nezinga lokushwibeka elilawulwayo kanye nokukhishwa okusheshayo kokuphumayo.
Kungani ngidinga isilinganiso esilawulwayo sokubulala?
Wonke amaswishi okulayisha e-TI anezinga lokushwiba elilawulwayo ukuze kuncishiswe i-inrush current, eyaziwa nangokuthi 'umsebenzi wokuqalisa othambile.Ngokwandisa kancane izinga lokushaja lama-capacitor alo okukhiphayo, ukushintshwa komthwalo kuvimbela i-voltage yokuhlinzeka ukuthi "ehle" ngenxa yokushaja okusheshayo kwama-capacitor okulayisha.Ukuze uthole ukwaziswa okwengeziwe mayelana nokunciphisa inrush current, sicela ufunde inothi lesicelo: "Managing Inrush Current".
Kuyini Ukukhipha Okusheshayo Okuphumayo?
Umsebenzi wokukhipha okukhiphayo okusheshayo, otholakala kumaswishi amaningi okulayisha, uqinisekisa ukuthi umthwalo onqanyuliwe noma okhutshaziwe awuntanti.Njengoba kuboniswe kuMfanekiso 3 ngenhla, okokufaka okuphansi kokuthi 'kuvuliwe' kuvala isici sesiteshi bese kuvula i-discharge field effect transistor (FET) ngesiguquli.Lokhu kudala indlela esuka ku-VOUT iye ku-GND, iqinisekisa ukuthi umthwalo ungabuyiselwa ngokushesha esimweni 'sokucisha' se-0V esaziwayo.
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