LT3755EUD#TRPBF Amashayeli Okukhanyisa ama-LED 75V Isilawuli se-LED Esifakwe Okugcwele
♠ Incazelo Yomkhiqizo
| Isibaluli Somkhiqizo | Isibaluli senani |
| Umkhiqizi: | I-Analog Devices Inc. |
| Isigaba somkhiqizo: | Abashayeli be-LED Lighting |
| Uchungechunge: | I-LT3755 |
| Isitayela Sokukhweza: | I-SMD/SMT |
| Iphakheji / Ikesi: | I-QFN-16 |
| Inombolo Yemiphumela: | 1 Okukhiphayo |
| Okukhiphayo Kwamanje: | 10 A |
| I-Voltage Yokufaka, Min: | 4.5 V |
| I-Voltage Yokufaka, I-Max: | 40 v |
| I-Topology: | Boost, Buck, Buck-Boost, Flyback, SEPIC |
| Imvamisa yokusebenza: | 100 kHz ukuya ku-1 MHz |
| I-Voltage Yokuphumayo: | Kuyalungiseka |
| Izinga Lokushisa Eliphansi Lokusebenza: | - 40 C |
| Ubukhulu Bezinga Lokushisa Lokusebenza: | + 125 C |
| Ukupakishwa: | I-reel |
| Ukupakishwa: | Sika Tape |
| Ukupakishwa: | I-MouseReel |
| Izici: | I-PWM Dimming, Vula Ukuvikelwa kwe-LED |
| Ibhrendi: | Amadivayisi e-Analog |
| I-Voltage Yokufaka: | 4.5 V kuya ku-40 V |
| Inombolo Yeziteshi: | Isiteshi esingu-1 |
| Uhlobo Lomkhiqizo: | Abashayeli be-LED Lighting |
| Inani Lephakethe Lefekthri: | 2500 |
| Isigaba esingaphansi: | Ama-IC omshayeli |
| Ukunikezwa Kwamanje - Max: | 1.7 mA |
♠ 40VIN, 75VOUT Izilawuli ze-LED
I-LT®3755, LT3755-1 ne-LT3755-2 izilawuli ze-DC/DC eziklanyelwe ukusebenza njengomthombo wamanje wokushayela ama-LED aphezulu amanje.Bashayela ohlangothini oluphansi lwangaphandle lwamandla we-N-channel MOSFET kusukela ekunikezeni okulawulwayo kwangaphakathi okungu-7.15V.I-frequency engaguquki, i-architecture yemodi yamanje iphumela ekusebenzeni okuzinzile phezu kobubanzi obubanzi bokunikezwayo nokukhiphayo.Iphinikhodi ye-FB ye-voltage esekelwe phansi isebenza njengokufakwa kwezici ezimbalwa zokuvikela i-LED,futhi yenza kube nokwenzeka ngesiguquli ukuthi sisebenze njengomthombo we-voltage engashintshi.Iphinikhodi yokulungisa imvamisa ivumela umsebenzisi ukuthi ahlele imvamisa ukusuka ku-100kHz ukuya ku-1MHz ukuze athuthukise ukusebenza kahle, ukusebenza noma usayizi wengxenye yangaphandle.
Inzwa ye-LT3755/LT3755-1/LT3755-2 yamanje ohlangothini oluphezulu lwentambo ye-LED.Inzwa yamanje eseceleni ephezulu iwuhlelo oluvumelana nezimo kakhulu lokushayela ama-LED, okuvumela i-boost, imodi yebhali noma ukulungiselelwa kwemodi ye-buck-boost.Okokufaka kwe-PWM kunikeza izilinganiso zokufiphala kwe-LED ezifika ku-3000:1, futhi okokufaka kwe-CTRL kunikeza amandla angeziwe okufiphalisa kwe-analog.
• 3000:1 Umbala Weqiniso we-PWM™ Dimming
• I-Wide Input Voltage Range: 4.5V kuya ku-40V
• I-Voltage ephumayo ifika ku-75V
• I-Constant-Current and Constant-Voltge Regulation
• I-100mV High Side Current Sense
• Ishayela ama-LED ku-Boost, i-Buck Mode, i-Buck-Boost Mode, i-SEPIC noma i-Flyback Topology
• Imvamisa Elungisekayo: 100kHz ukuya ku-1MHz
• Vula Ukuvikelwa kwe-LED
• I-Programmable Undervoltage Lockout ene-Hysteresis
• Iphinikhodi yesimo se-Open LED ethuthukisiwe (LT3755-2)
• I-Frequency Synchronization (LT3755-1)
• I-PWM Nqamula I-Switch Driver
• Iphinikhodi ye-CTRL Inikeza Ukufiphala kwe-Analog
• Ukuvala shaqa okuphansi kwamanje: <1µA
• I-Soft-Qala Ehlelekayo
• I-16-Lead Ethuthukisiwe ye-QFN (3mm × 3mm) ne-MSOP Ethuthukisiwe
• I-AEC-Q100 Ifanelekele Izicelo Zezimoto
• I-LED Yamandla Aphezulu
• Amashaja Ebhethri
• Izilawuli Zamandla Zamanje Ezilinganiselwe Ezinembile
