Yazisa ngesicelo kunye nomgaqo wokusebenza wetshiphu ye-R5426 kwisilawuli esincinci

Kule mihla, iimveliso ze-elektroniki eziphathwayo ziya zithandwa ngakumbi nangakumbi, kwaye izixhobo zabo zebhetri ziye zaba yeyona nto iqwalaselwayo. Iibhetri ze-lithium kunye neebhetri ze-lithium ze-polymer ziye zatshintsha ngokuthe ngcembe iibhetri ze-nickel-cadmium kunye neebhetri ze-nickel-hydrogen njengokhetho lokuqala lwezixhobo eziphathekayo ngenxa yobuninzi bamandla abo, ixesha elide lokusetyenziswa, kunye neemfuno zokukhuselwa kwendalo. I-Ricoh ye-lithium-ion yokulungisa i-chip R5426 series yenzelwe ngokukodwa izixhobo eziphathwayo ezifana neeselfowuni, i-pdas, kunye neebhetri ze-lithium ze-monolithic.

I-R5426 series yi-overcharge / discharge / overcurrent maintenance chip, enokuthi ihlawuliswe nge-lithium ion / ibhetri.

Uluhlu lwe-R5426 lwenziwa ngeteknoloji yombane ophezulu, ukumelana nombane ongekho ngaphantsi kwe-28V, epakishwe kwi-6-PIN, SOT23-6 okanye i-SON-6, kunye nokusetyenziswa kwamandla aphantsi (ixabiso langoku lamandla aqhelekileyo we-3.0UA, ixabiso eliqhelekileyo lokulinda le-0.1UA ), i-high precision Detection threshold, imilinganiselo eyahlukeneyo yokugcinwa komda wokugcinwa, ukukhutshwa kokulibaziseka kwemveliso eyakhelweyo kunye nemisebenzi yokutshaja ye-0V, ukugcinwa kokusebenza emva kokuqinisekiswa.

Isekethe nganye edibeneyo iqukethe i-detectors ezine zombane, i-reference circuit unit, i-circuit circuit, i-short-circuit keeper, i-oscillator, i-counter kunye ne-logic circuit. Xa i-voltage yokutshaja kunye nokutshaja kwangoku kunyuka ukusuka kwincinci ukuya enkulu kwaye kudlula i-detector ehambelanayo (VD1, VD4), i-pin yokukhupha i-Cout ihlawulwe kakhulu yi-voltage detector / VD1 ukuyigcina, kunye ne-overcharge kunye ne-overcurrent detector / VD4 idlula. ehambelanayo Ulibaziseko lwangaphakathi lutshintshela kwinqanaba eliphantsi. Emva kokuba ibhetri igcwele kakhulu okanye itshajiwe, susa ipakethe yebhetri kwitshaja kwaye uqhagamshele umthwalo kwiVDD. Xa i-voltage yebhetri yehla ngaphantsi kwexabiso eligqithisiweyo, ii-detectors ezimbini ezihambelanayo (i-VD1 kunye ne-VD4) zisetyenzisiwe, kwaye i-Cout output iba phezulu. Ukuba ipakethi yebhetri isekwitshaja, nokuba amandla ombane ebhetri angaphantsi kwexabiso lovavanyo lokutshaja, ulondolozo lwentlawulo egqithisileyo alunakukhululelwa.

Iphini ye-DOUT yi-pin yokuphuma ye-overdischarge detector (VD2) kunye ne-overdischarge detector (VD3). Xa i-voltage yokukhupha iphantsi kune-voltage ye-VDET2 ye-overdischarge detector ukusuka phezulu ukuya ephantsi, oko kukuthi, ngaphantsi kwe-VDET2, i-pin ye-DOUT ihla iye phantsi emva kokulibaziseka okusisigxina kwangaphakathi.

Emva kokufumanisa ukukhutshwa ngokugqithiseleyo, ukuba ishaja ixhunyiwe kwi-pack yebhetri, xa i-voltage yokubonelela ibhetri iphezulu kune-voltage ye-voltage ye-voltage detector over-discharge, i-VD2 ikhutshwe kwaye i-DOUT iba phezulu.

Ukwakhiwa kwe-over-current / short-circuit detector VD3, emva kokulibaziseka okwakhelwe ngaphakathi, ngokutshintsha i-DOUT ephumayo ukuya kwinqanaba eliphantsi, ukukhutshwa kwe-over-current status kuyavakala kwaye ukukhutshwa kunqunyulwa. Okanye xa i-short-circuit current ifunyenwe, ixabiso le-DOUT liyancipha ngokukhawuleza, kwaye ukukhutshwa kunqunyulwa. Emva kokuba i-overcurrent okanye isiphaluka esifutshane sifunyenwe, ipakethe yebhetri ihlukaniswe nomthwalo, i-VD3 ikhutshwe, kwaye inqanaba le-DOUT liyakhula.

Ukongeza, emva kokubona ukukhutshwa, i-chip iya kumisa ukusebenza kwesiphaluka sangaphakathi ukugcina ukusetyenziswa kwamandla kuphantsi kakhulu. Ngokumisela i-terminal ye-DS kwinqanaba elifanayo njenge-terminal ye-VDD, ukulibaziseka kokugcinwa kungenziwa mfutshane (ngaphandle kokugcinwa kwexesha elifutshane). Ngokukodwa, ukulibaziseka kokugcinwa kwe-overcharge kunokuncitshiswa ukuya kwi-1/90, okunciphisa ixesha elifunekayo lokuvavanya nokugcina isekethe. Xa inqanaba le-terminal ye-DS libekwe phakathi koluhlu oluthile, ukulibaziseka kwemveliso kurhoxiswa, kwaye i-overcharge kunye ne-overcharge current ifunyenwe ngokukhawuleza. Ngeli xesha, ukulibaziseka malunga namashumi microseconds.