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MAX16809

Integrated 16-Channel LED Drivers with Switch-Mode Boost and SEPIC Controller

GeneralDescription TheMAX16809/MAX16810areintegrated,high-efficiencywhiteorRGBLEDdrivers.TheyaredesignedforLCDbacklightingandotherLEDlightingapplicationswithmultiplestringsofLEDs.TheMAX16809/MAX16810’scurrent-modePWMcontrollerregulatesthenecessaryvoltagetothe

MAX16809

集成16通道LED驅(qū)動(dòng)器，具有開關(guān)模式boost及SEPIC控制器; \n? 16路恒定電流輸出通道(每通道高達(dá)55mA) \n? 各輸出間±3%電流匹配度 \n? 并聯(lián)輸出通道可以提供更高的LED串電流 \n? 輸出的額定連續(xù)電壓為36V \n? 輸出使能引腳用于PWM調(diào)光(高達(dá)30kHz) \n? 采用單個(gè)電阻設(shè)置所有通道的LED電流 \n? 寬的調(diào)光比，最大可達(dá)5000:1 \n? 低的電流檢測(cè)基準(zhǔn)(300mV)，實(shí)現(xiàn)高效率 \n? 8V至26.5V輸入電壓或更高(采用外部偏置器件) \n? 4線串行接口，實(shí)現(xiàn)各個(gè)輸出通道的獨(dú)立控制;

MAX16809是集成的高效率白光或RGB LED驅(qū)動(dòng)器。該器件專為采用多個(gè)LED串聯(lián)的LCD背光或其他LED照明應(yīng)用設(shè)計(jì)。MAX16809的電流模式PWM控制器可將輸出調(diào)節(jié)至LED陣列所需要的電壓。器件可以根據(jù)輸入電壓范圍以及LED電壓范圍的不同，采用boost或buck-boost (SEPIC)拓?fù)?。\n MAX16809 LED驅(qū)動(dòng)器包括16路開漏極、恒定吸入電流LED驅(qū)動(dòng)器輸出，額定連續(xù)工作電壓為36V。LED電流控制電路可以實(shí)現(xiàn)LED串之間±3%的電流匹配度，并可將輸出并聯(lián)以提供超過55mA的LED串電流。輸出使能引腳可用于所有輸出通道的同步PWM調(diào)光。調(diào)光頻率范圍為50Hz至30kHz，而調(diào)光比率可高達(dá)5000:1。恒定電流輸出可通過單個(gè)電阻編程設(shè)定，每個(gè)輸出通道的LED電流可調(diào)節(jié)至高達(dá)55mA。\n MAX16809可工作在獨(dú)立模式下或通過工業(yè)標(biāo)準(zhǔn)的4線串行接口由微控制器(μC)控制。\n MAX16809具有過熱保護(hù)，可工作在-40°C至+125°C溫度范圍，采用5mm x 7mm熱增強(qiáng)型、38引腳TQFN裸焊盤封裝。

MAX16809

Integrated 16-Channel LED Driver with Switch-Mode Boost and SEPIC Controller

MAX16809ATU+

Integrated 16-Channel LED Drivers with Switch-Mode Boost and SEPIC Controller

GeneralDescription TheMAX16809/MAX16810areintegrated,high-efficiencywhiteorRGBLEDdrivers.TheyaredesignedforLCDbacklightingandotherLEDlightingapplicationswithmultiplestringsofLEDs.TheMAX16809/MAX16810’scurrent-modePWMcontrollerregulatesthenecessaryvoltagetothe

MAX16809_07

Integrated 16-Channel LED Drivers with Switch-Mode Boost and SEPIC Controller

MAX16809_09

Integrated 16-Channel LED Driver with Switch-Mode Boost and SEPIC Controller

MAX16809ATU

Integrated 16-Channel LED Driver with Switch-Mode Boost and SEPIC Controller

MAX16809ATU+

Integrated 16-Channel LED Drivers with Switch-Mode Boost and SEPIC Controller

MAX16809EVKIT

MAX16809 Evaluation Kit

MAX16809EVKIT+

MAX16809 Evaluation Kit