PMIC-LED Driver Chip Silk Screen LP8861QPWPRQ1 IC wareegyo isku dhafan
LP8861-Q1 waxay haysataa ikhtiyaar ah in lagu wado p FET dibadda ah si ay uga saarto sahayda wax gelinta ee nidaamka haddii ay dhacdo cilad oo loo yareeyo qulqulka hadda iyo isticmaalka tamarta taagan.Qalabku wuu yarayn karaa
LED hadda ku salaysan heerkulka lagu cabiray shidma NTC dibadeed si looga ilaaliyo LED-ka kulaylka iyo kordhinta cimriga LED.
Kala duwanaanshaha korantada ee LP8861-Q1 waxay ka socotaa 4.5 V ilaa 40 V si ay u taageerto joogsiga/bilawga baabuurta iyo xaalada qashin qubka.LP8861-Q1 wuxuu isku daraa ogaanshaha cilladaha iyo astaamaha ilaalinta.
Sifooyinka Alaabta
| NOOCA | SHARAXA |
| Qaybta | Wareegyada isku dhafan (ICs) PMIC - Darawalada LED |
| Mfr | Qalabka Texas |
| Taxane | Gawaarida, AEC-Q100 |
| Xidhmada | Cajalad & Gariir (TR) Jaran Cajalad (CT) Digi-Reel® |
| Xaaladda Qaybta | Firfircoon |
| Nooca | Xakamaynta DC DC |
| Topology | SEPIC, Kor-u-qaadis (kor u qaadis) |
| Bedelka Gudaha | Haa |
| Tirada Waxsoosaarka | 4 |
| Voltage - Sahayda (Daqadda) | 4.5V |
| Korantada - Bixinta (Max) | 40V |
| Voltage - Wax soo saarka | 45V |
| Hadda - Wax-soo-saarka / Kanaalka | 100mA |
| Soo noqnoqda | 300kHz ~ 2.2MHz |
| Diidmada | PWM |
| Codsiyada | Baabuur, Iftiin dambe |
| Heerkulka shaqada | -40°C ~ 125°C (TA) |
| Nooca Koritaanka | Dusha sare |
| Xidhmada / Kiis | 20-PowerTSSOP (0.173, 4.40mm ballac) |
| Xidhmada Aaladda Bixiyaha | 20-HTSSOP |
| Lambarka Alaabta Saldhigga | LP8861 |
Darawalka LED
Waa maxay Darawalka LED?
Darawalka LED-ku waa qalab koronto lagu hagaajiyay oo kaxeynaya shaqada caadiga ah ee iftiinka LED-ka ama kulanka moduleka LED-ka.Sababo la xiriira sifooyinka conduction ee isgoysyada PN LED, waxa ay la qabsan kartaa danab iyo kala duwanaanshaha hadda ee korontada waa mid aad u cidhiidhi ah, weecasho yar waxaa laga yaabaa in aan awoodin in ay iftiimiso LED ama waxtarka iftiinka ayaa si dhab ah loo dhimay, ama gaabin nolosha. ee jajabka ama xitaa gubtay.Sahayda tamarta warshadaha ee hadda jirta iyo sahayda tamarta caadiga ah kuma haboona sahayda tooska ah ee LED-yada, darawalka LED-ku waa qaybta elektiroonigga ah ee kaxayn karta LED si ay ugu shaqeyso tamarta ugu fiican ama hadda.
Codsiyada
Codsiyada Darawalada LED.
Sida LED-yada loo isticmaalo ku dhawaad meel kasta oo ka mid ah codsiyada elektiroonigga ah, oo leh ku dhawaad kala duwanaansho aan la saadaalin karin oo ku saabsan xoojinta iftiinka, midabka iftiinka, iyo kontoroolka daminta / daminta, darawallada LED-yada waxay noqdeen ku dhawaad hal-hal-hal aaladaha servo, samaynta qoys kala duwan oo aalado ah.Dareewalka ugu fudud ee LED-ka (haddii aad wici karto) waxay u badan tahay inuu yahay hal ama dhowr qaybood oo isbarbar socda oo isbarbar socda oo ku jira wareegga kala qaybiya hadda iyo korantada, mana aha wax soo saar kaligiis ah oo dhan.Codsiyo ganacsi oo guud oo badan oo u baahan wax soo saar joogto ah oo joogto ah iyo danab, noocyo kala duwan oo xalal nidaam oo leh awoodo qaboojin toosan ayaa la sameeyay.Xaqiijinta xalalkani waxay inta badan u baahan tahay naqshad wareeg ah oo kakan, taas oo udub dhexaad u ah codsiga isku dhafan ee darawalka LED ICs.Adiga oo dejinaya wareegyo taageero oo kala duwan oo ku yaal xayndaabka darawalka LED ICs, xalalka waxaa loo dhisi karaa codsiyada kala duwan ee LED-ka, laga bilaabo shaashadda taleefanka gacanta ee yar yar ee iftiiminta iftiinka iyo darawallada nalalka furaha ilaa nalalka LED-ka ee awoodda sare leh iyo bandhigyo waaweyn oo LED ah.
Naqshadeynta iyo sahayda darawalada tamarta sare ee LED-ka guud ahaan waxaa fuliya shirkado takhasus leh.Shirkadahani waxay ku xidhaan qaybo ka dibna u siiya soosaarayaasha alaabada isticmaalka dhamaadka LED.Muhiimadda gaarka ah ee darawallada LED-yada ee codsiyada LED-ka iyo shuruudaha ballaaran ee isticmaalaha ayaa ka dhigaya darawalka LED IC, wadnaha darawalka LED, oo ah qayb muhiim ah oo ka mid ah dhammaan silsiladda tignoolajiyada.Darawalku waa qaybta udub-dhexaadka u ah iftiinka LED-ka.Iyada oo qaan-gaarnimada tignoolajiyada chip-ka LED-ka, tayada ilaha iftiinka LED-ku waxay noqdeen kuwo la isku halleyn karo oo marar badan fashilka nalalka LED-ku ka yimaad darawalka.
Sharaxaada
LP8861-Q1 waa baabuur tayo sare leh, EMI hooseeya, si sahlan loo isticmaali karo darawalka kor u qaadida/bedeliyaha SEPIC.Waxay leedahay afar saxan oo saxan oo hadda jira kuwaas oo ku siin kara xakamaynta dhalaalka saamiga sare ee hoos u dhaca oo wata calaamadda gelinta PWM.
Beddeliyaha/Beddeliyaha SEPIC wuxuu leeyahay kontoroolka korantada ee wax soo saarka ee la qabsiga ee ku saleysan korantada qolalka madaxa ee hadda jira ee LED.Habkani waxa uu yareeyaa isticmaalka korantada iyada oo la hagaajinayo danab ilaa heerka ugu hooseeya ee ku filan dhammaan xaaladaha.Beddelaha Kobcinta/SEPIC waxa ay taageertaa fidinta kala duwanaanshaha beddelka soo noqnoqda iyo is-waafajinta dibadda oo leh biin go'an.Soo noqnoqoshada la isku hagaajin karo ee ballaaran ayaa u oggolaanaysa LP8861-Q1 in uu iska ilaaliyo qaska guutada raadiyaha AM.
LP8861-Q1 waxay haysataa ikhtiyaar ay ku wado p-FET dibadda ah si ay uga saarto sahayda wax gelinta ee nidaamka haddii ay dhacdo cilad oo loo yareeyo qulqulka hadda iyo isticmaalka tamarta taagan.Qalabku wuxuu yarayn karaa LED hadda ku salaysan heerkulka lagu cabbiray shidma NTC ee dibadda ah si looga ilaaliyo LED-ka kulaylka iyo u kordhiyo cimriga LED.
Kala duwanaanshaha korantada ee LP8861-Q1 waxay ka socotaa 4.5 V ilaa 40 V si ay u taageerto joogsiga/bilawga baabuurta iyo xaalada qashin qubka.LP8861-Q1 wuxuu isku daraa ogaanshaha cilladaha iyo astaamaha ilaalinta.
-
TPS74801DRCR (soo jeedin kulul) TPS74801DRCR cusub ee s...
-
5CEFA5U19I7N Shenzhen IC Chip Isku-dhafan wareegyada
-
Qaybiyaha Qaybta asalka ah ee Jumlada IC Chip Int...
-
Cusub iyo Asalka XC7K160T-2FBG484I Isku-dhafan c...
-
Qalabka elektaroonigga ah ee asalka ah ee asalka ah ee IC ...
-
Qaybaha Elektarooniga ah ee IC Chips Integrated Circu...