40VIN、75VOUT LED 控制器

LT?3755、LT3755-1 和 LT3755-2 是 DC/DC 控制器，專為充當(dāng)一個(gè)用于驅(qū)動高電流 LED 的恒定電流源而設(shè)計(jì)。它們從一個(gè)內(nèi)部已調(diào) 7.15V 電源來驅(qū)動一個(gè)低端外部 N 溝道功率 MOSFET。固定頻率、電流模式架構(gòu)在一個(gè)很寬的電源和輸出電壓范圍內(nèi)實(shí)現(xiàn)了穩(wěn)定操作。一個(gè)參考于地的電壓 FB 引腳用作多個(gè) LED 保護(hù)功能電路的輸入，而且還使得轉(zhuǎn)換器能夠起一個(gè)恒定電壓源的作用。一個(gè)頻率調(diào)節(jié)引腳允許用戶在 100kHz 至 1MHz 的范圍內(nèi)設(shè)置頻率，旨在優(yōu)化效率、性能或外部元件尺寸。\n\n LT3755/LT3755-1/LT3755-2 在 LED 串的高端 ? 3000:1真彩色PWM?調(diào)光 \n\n? 寬輸入電壓范圍：4.5V至40V \n\n? 輸出電壓最高可達(dá)75V \n\n? 恒流和恒壓調(diào)節(jié) \n\n? 100mV高端電流檢測 \n\n? 在升壓、降壓模式、降壓-升壓模式、SEPIC或反激式拓?fù)湎买?qū)動LED \n\n? 可調(diào)頻率：100kHz至1MHz\n\n? 開路LED保護(hù)\n\n? 具有遲滯的可編程欠壓閉鎖;

ADI

亞德諾

60VIN/120VOUT Dual LED Controller with Exponential PWM and Scalable Dimming

DESCRIPTION The LT?8355-1 a dual-channel DC/DC controller designed to drive two strings of high current LEDs. The fixed frequency, current mode architecture results in stable operation over a wide range of supply and output voltages. Voltage feedback pins serve as the inputs for several LED

文件：2.44769 Mbytes 頁數(shù)：30 Pages

AD

亞德諾

60VIN/120VOUT Dual LED Controller with Exponential PWM and Scalable Dimming

FEATURES - Two independent High Voltage LED Driver Controllers Channels 128:1 Internal Exponential PWM Dimming - Two-Pin Multiplying Analog Dimming (CH2) - Spread Spectrum Frequency Modulation - 20,000:1 External PWM Dimming at 100Hz - Rail-to-Rail LED Current Sensing: 0V to 120V - ±2 LED

文件：4.33304 Mbytes 頁數(shù)：31 Pages

AD

亞德諾

60VIN/120VOUT Dual LED Controller with Exponential PWM and Scalable Dimming

DESCRIPTION The LT?8355-1 a dual-channel DC/DC controller designed to drive two strings of high current LEDs. The fixed frequency, current mode architecture results in stable operation over a wide range of supply and output voltages. Voltage feedback pins serve as the inputs for several LED

文件：2.44769 Mbytes 頁數(shù)：30 Pages

AD

亞德諾

60VIN/120VOUT Dual LED Controller with Exponential PWM and Scalable Dimming

FEATURES - Two independent High Voltage LED Driver Controllers Channels 128:1 Internal Exponential PWM Dimming - Two-Pin Multiplying Analog Dimming (CH2) - Spread Spectrum Frequency Modulation - 20,000:1 External PWM Dimming at 100Hz - Rail-to-Rail LED Current Sensing: 0V to 120V - ±2 LED

文件：4.33304 Mbytes 頁數(shù)：31 Pages

AD

亞德諾

40VIN, 75VOUT LED Controllers

文件：355.84 Kbytes 頁數(shù)：26 Pages

LINER

凌力爾特

8-Channel ? 100mA LED Driver

文件：425.35 Kbytes 頁數(shù)：32 Pages

LINER

凌力爾特

60V 4-Switch Synchronous Buck-Boost Controller

文件：332.8 Kbytes 頁數(shù)：26 Pages

LINER

凌力爾特

36V, 2A Synchronous Step-Up LED Driver

文件：2.49149 Mbytes 頁數(shù)：30 Pages

LINEAR

32-Channel 20mA LED Driver with Buck Controller 0.5關(guān)s Minimum LED On Time

文件：403.26 Kbytes 頁數(shù)：28 Pages

LINER

凌力爾特