Sethule uhlelo lokusebenza kanye nesimiso sokusebenza se-chip ye-R5426 kusilawuli esincane

Kulezi zinsuku, imikhiqizo ye-elekthronikhi ephathekayo iya ngokuya ithandwa kakhulu, futhi imishini yabo yebhethri isigxile kakhulu. Amabhethri e-lithium namabhethri e-lithium e-polymer kancane kancane athathe indawo yamabhethri e-nickel-cadmium kanye namabhethri e-nickel-hydrogen njengokukhetha kokuqala kwamadivayisi aphathwayo ngenxa yobuningi bawo bamandla, isikhathi eside sokusebenzisa, kanye nezidingo eziphakeme zokuvikela imvelo. I-Ricoh’s lithium-ion repair chip R5426 series yakhelwe ngokukhethekile amadivayisi aphathekayo afana nomakhalekhukhwini, i-pdas, namabhethri e-lithium e-monolithic.

Uchungechunge lwe-R5426 luyi-chip yokushaja ngokweqile/yokukhipha/yokulungisa okwedlulele, engashajwa nge-lithium ion/ibhethri.

Uchungechunge lwe-R5426 lwakhiwe ngobuchwepheshe be-voltage ephezulu, imelana ne-voltage engekho ngaphansi kuka-28V, epakishwe ku-6-PIN, SOT23-6 noma i-SON-6, esebenzisa amandla aphansi (inani lamanje lamandla ajwayelekile angu-3.0UA, inani elijwayelekile lokulinda elingu-0.1UA ), umkhawulo Wokuthola ukunemba okuphezulu, imikhawulo ehlukahlukene yomkhawulo wokulungisa, ukushaja kokulibaziseka okwakhelwe ngaphakathi kanye nemisebenzi yokushaja engu-0V, ukugcinwa kokusebenza ngemva kokuqinisekiswa.

Isifunda ngasinye esihlanganisiwe siqukethe izitholi ezine ze-voltage, iyunithi yesifunda sereferensi, isifunda sokulibaziseka, umgcini wesifunda esifushane, i-oscillator, ikhawunta kanye nesekethe enengqondo. Lapho i-voltage yokushaja kanye nokushaja kwamanje kukhuphuka kusuka kokuncane kuye kokukhulu futhi kudlula izithonjana ezihambisanayo (VD1, VD4), iphinikhodi yokukhipha i-Cout ishajwa kakhulu umtshina we-voltage ophumayo /VD1 ukuze igcinwe, kanye nomtshina oweqile kanye ne-overcurrent /VD4 idlula okuhambisanayo Ukubambezeleka kwangaphakathi kushintsha kuye ezingeni eliphansi. Ngemuva kokuthi ibhethri selishajwe kakhulu noma selishajwe kakhulu, khipha ibhethri ephaketheni eshaja bese uxhuma umthwalo ku-VDD. Uma i-voltage yebhethri yehla ngaphansi kwevelu yokushajwa ngokweqile, izithonjana ezimbili ezihambisanayo (i-VD1 ne-VD4) zisethwa kabusha, futhi okukhiphayo kwe-Cout kuba phezulu. Uma iphakethe lebhethri lisekwishaja, ngisho noma amandla kagesi ebhethri engaphansi kwenani lokuhlola ukushajwa ngokweqile, ukugcinwa kokushajwa ngokweqile ngeke kukhululwe.

Iphinikhodi ye-DOUT iyiphini lokuphumayo lomtshina wokudischarge (VD2) kanye nomtshina wokudischarge (VD3). Uma i-voltage yokukhipha iphansi kune-threshold voltage VDET2 yomtshina wokulahla ngokweqile ukusuka phezulu ukuya phansi, okungukuthi, iphansi kune-VDET2, iphinikhodi ye-DOUT yehla ibe phansi ngemva kokubambezeleka okuhleliwe kwangaphakathi.

Ngemva kokuthola ukuchitheka ngokweqile, uma ishaja ixhunywe kuphakethe lebhethri, lapho i-voltage yokunikezwa kwebhethri ingaphezulu kwe-threshold voltage yomtshina we-voltage ekhishwa kakhulu, i-VD2 iyakhululwa bese i-DOUT iba phezulu.

Umtshina we-VD3 owakhelwe ngaphakathi ngaphezulu-yamanje/omfishane, ngemva kokubambezeleka okugxilile okwakhelwe ngaphakathi, ngokushintsha okukhiphayo kwe-DOUT kube sezingeni eliphansi, kuzwakala isimo sokukhipha ngaphezulu kwamanje futhi ukukhishwa kuyanqanyulwa. Noma uma i-current-circuit current itholwa, inani le-DOUT liyancipha ngokushesha, futhi ukukhishwa kunqanyuliwe. Uma i-overcurrent noma i-short circuit isitholiwe, iphakethe lebhethri liyahlukaniswa nomthwalo, i-VD3 iyakhululwa, futhi izinga le-DOUT liyakhula.

Ngaphezu kwalokho, ngemva kokuthola ukukhishwa, i-chip izomisa ukusebenza kwesifunda sangaphakathi ukuze igcine ukusetshenziswa kwamandla kuphansi kakhulu. Ngokusetha itheminali ye-DS ibe sezingeni elifanayo netheminali ye-VDD, ukubambezeleka kokulungisa kungafinyezwa (ngaphandle kokugcinwa kwesikhashana esifushane). Ikakhulukazi, ukubambezeleka kwesondlo sokukhokhiswa ngokweqile kungancishiswa ku-1/90, okunciphisa isikhathi esidingekayo sokuhlola nokugcina isifunda. Uma ileveli yetheminali ye-DS isethwe phakathi kwebanga elithile, ukubambezeleka kokuphumayo kuyakhanselwa, futhi ukushajwa ngokweqile kanye namandla okushajwa ngokweqile kutholwa ngokushesha. Ngalesi sikhathi, ukubambezeleka cishe kungamashumi ama-microsecond.