LT3755EUD#TRPBF Izibane ze-LED zabaqhubi 75V Isilawuli se-LED esigcwele ngokupheleleyo
♠ Inkcazo yeMveliso
| Uphawu lweMveliso | Ixabiso lophawu |
| Umenzi: | I-Analog Devices Inc. |
| Udidi lweMveliso: | Abaqhubi bokuKhanya kwe-LED |
| Uthotho: | LT3755 |
| Isimbo sokuNqamisa: | SMD/SMT |
| Umqulu / Ityala: | QFN-16 |
| Inani leZiphumo: | 1 Isiphumo |
| Imveliso yangoku: | 10 A |
| Igalelo loMbane, uMz: | 4.5 V |
| Igalelo lombane, Ubukhulu: | 40 V |
| I-Topology: | Khuthaza, Buck, Buck-Boost, Flyback, SEPIC |
| Izakhelo zokuSebenza: | I-100 kHz ukuya kwi-1 MHz |
| Umbane ophumayo: | Iyahlengahlengiswa |
| Ubuncinci bobushushu bokusebenza: | - 40 C |
| Obona bushushu bokusebenza: | + 125 C |
| Ukupakishwa: | I-Reel |
| Ukupakishwa: | Sika iTape |
| Ukupakishwa: | MouseReel |
| Iimbonakalo: | I-PWM Dimming, Vula uKhuseleko lwe-LED |
| Uphawu: | Izixhobo ze-Analog |
| Igalelo lamandla ombane: | 4.5 V ukuya ku-40 V |
| Inani lamatshaneli: | Ijelo eli-1 |
| Uhlobo lweMveliso: | Abaqhubi bokuKhanya kwe-LED |
| Ubungakanani bePakethi yoMzi-mveliso: | 2500 |
| Uluhlu olungaphantsi: | Ii-ICs zomqhubi |
| Unikezelo lwangoku - Ubuninzi: | 1.7 mA |
♠ 40VIN, 75VOUT abalawuli be-LED
I-LT®3755, LT3755-1 kunye ne-LT3755-2 ngabalawuli be-DC / DC abenzelwe ukusebenza njengomthombo oqhubekayo wokuqhuba ii-LED eziphezulu zangoku.Baqhuba icala eliphantsi langaphandle lamandla e-N-channel MOSFET ukusuka kunikezelo lwangaphakathi olulawulwayo lwe-7.15V.I-frequency esisigxina, i-architecture yemodi yangoku iphumela ekusebenzeni okuzinzile phezu koluhlu olubanzi lokubonelela kunye nemveliso yombane.Iphini ye-voltage ye-FB echazwe emhlabeni isebenza njengegalelo kwizinto ezininzi zokukhusela i-LED,kwaye yenza kube nokwenzeka ukuba isiguquli sisebenze njengomthombo wevoltage rhoqo.Isikhonkwane sokuhlengahlengisa amaza kuvumela umsebenzisi ukuba acwangcise ukuphindaphinda ukusuka kwi-100kHz ukuya kwi-1MHz ukwandisa ukusebenza kakuhle, ukusebenza okanye ubungakanani becandelo langaphandle.
I-LT3755/LT3755-1/LT3755-2 inzwa yokuphuma ngoku kwicala eliphezulu lomtya we-LED.Icala eliphakamileyo lokubona ngoku sesona sikimu sibhetyebhetye kakhulu sokuqhuba ii-LED, ezivumela ukonyuswa, imowudi yebhaki okanye ubumbeko lwemowudi yokunyusa ibhakethi.Igalelo le-PWM libonelela nge-LED dimming ratios ukuya kuthi ga kwi-3000: 1, kwaye igalelo le-CTRL libonelela ngekhono elongezelelweyo le-analog dimming.
• 3000:1 Umbala oyiNyaniso PWM™ Dimming
• Uluhlu olubanzi lwe-Voltage: 4.5V ukuya kwi-40V
• Umbane ophumayo ukuya kuthi ga kwi-75V
• Ulawulo lwangoku kunye noLawulo lweVoltage rhoqo
• 100mV High Side Current Sense
• Ukuqhuba ii-LED kwi-Boost, i-Buck Mode, i-Buck-Boost Mode, i-SEPIC okanye i-Flyback Topology
• I-Adjustable Frequency: 100kHz ukuya kwi-1MHz
• Vula uKhuseleko lwe-LED
• Programmable Undervoltage Lockout kunye Hysteresis
• Iphini yeSimo se-LED esiVulekileyo esiPhuculweyo (LT3755-2)
• Ulungelelwaniso lweFrequency (LT3755-1)
• PWM Nxibelela iSwitch Driver
• I-CTRL Pin ibonelela ngoDimming ye-Analog
• Ucimo lwangoku: <1µA
• Programmable Soft-Qala
• I-Thermally ephuculweyo ye-16-Lead QFN (3mm × 3mm) kunye neMipakethe ye-MSOP
• I-AEC-Q100 ifanelekile kwizicelo zeMoto
• High Power LED
• Iitshaja zebhetri
• IziLawuli zaMandla ombane eziNcinciweyo ngoku
