LT3590 的典型應(yīng)用是一款固定頻率降壓模式
轉(zhuǎn)換器,專(zhuān)門(mén)設(shè)計(jì)用于從 48V DC
電源驅(qū)動(dòng)多達(dá) 10 個(gè)串聯(lián)
LED。 LED 的串聯(lián)可提供高達(dá) 50mA 的相同 LED
電流,從而實(shí)現(xiàn)均勻的亮度并無(wú)需鎮(zhèn)流
電阻。固定頻率、電流模式架構(gòu)可在較寬的輸入電壓和輸出電壓范圍內(nèi)穩(wěn)定運(yùn)行
說(shuō)明
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Typical Application for LT3590 is a fixed frequency buck mode converter specifically designed to drive up to 10 LEDs in series from a 48V DC source. Series connection of the LEDs provides identical LED currents of up to 50mA, resulting in uniform brightness and eliminating the need for ballast resistors. A fixed frequency, current mode architecture results in stable operation over a wide range of input voltage and output voltage