High-Voltage, 350mA LED Driver with Analog and PWM Dimming Control

General Description The MAX16804 current regulator operates from a 5.5V to 40V input voltage range and delivers 35mA to 350mA to one or more strings of high-brightness LEDs (HB LEDs). The output current of the MAX16804 is set by using an external current-sense resistor in series with the LEDs.

文件：787.21 Kbytes 頁(yè)數(shù)：11 Pages

MAXIM

美信

高壓、350mA、高亮度LED驅(qū)動(dòng)器，提供模擬及PWM調(diào)光控制

MAX16804電流調(diào)節(jié)器可工作在5.5V至40V輸入電壓范圍內(nèi)，提供35mA至350mA電流來驅(qū)動(dòng)一串或多串高亮度LED (HB LED)。MAX16804輸出電流的大小通過一個(gè)與LED串聯(lián)的外部檢流電阻來調(diào)節(jié)。雙模式DIM引腳和片上200Hz斜坡發(fā)生器使用模擬或PWM控制信號(hào)來實(shí)現(xiàn)PWM亮度調(diào)節(jié)。給亮度控制輸入端DIM施加模擬控制信號(hào)允許實(shí)現(xiàn)“theater”式亮度控制效果。快速的開通/關(guān)閉時(shí)間允許使用寬范圍的PWM工作，波形整形電路可以使EMI最小化。差分電流檢測(cè)輸入提高了LED電流精度和噪聲抑制能力。MAX16804非常適合要求高壓輸入的應(yīng)用，并能夠承受高達(dá)45V的汽車拋負(fù)載事件。片上 \n? 靈活的亮度控制：模擬或PWM控制信號(hào)用于PWM或“theater”式亮度控制 \n? 片上200Hz斜坡發(fā)生器 \n? 接收外部PWM信號(hào)(高達(dá)2kHz) \n? 5.5V至40V工作電壓范圍 \n? 可調(diào)LED電流(35mA至350mA) \n? 3% LED電流精度 \n? 高壓DIM引腳(高達(dá)40V) \n? 內(nèi)置調(diào)整元件，低壓差(典型值0.5V) \n? 額外的片上+5V穩(wěn)壓輸出，具備2mA電流容量 \n? 差分LED電流檢測(cè) \n? 200mV低電流檢測(cè)基準(zhǔn)，降低了功耗 \n? 波形整形電路使脈沖電流具有平滑的邊沿，從而降低了PWM亮度控制時(shí)的EMI \n? 輸出短路;

ADI

亞德諾

High-Voltage, 350mA LED Driver with Analog and PWM Dimming Control

General Description The MAX16804 current regulator operates from a 5.5V to 40V input voltage range and delivers 35mA to 350mA to one or more strings of high-brightness LEDs (HB LEDs). The output current of the MAX16804 is set by using an external current-sense resistor in series with the LEDs.

文件：787.21 Kbytes 頁(yè)數(shù)：11 Pages

MAXIM

美信

High-Voltage, 350mA LED Driver with Analog and PWM Dimming Control

General Description The MAX16804 current regulator operates from a 5.5V to 40V input voltage range and delivers 35mA to 350mA to one or more strings of high-brightness LEDs (HB LEDs). The output current of the MAX16804 is set by using an external current-sense resistor in series with the LEDs.

文件：281.42 Kbytes 頁(yè)數(shù)：10 Pages

MAXIM

美信

Package：20-WQFN 裸露焊盤；包裝：管件 類別：集成電路（IC） LED 驅(qū)動(dòng)器 描述：IC LED DRVR LIN PWM 350MA 20TQFN

AD

亞德諾

Package：20-WQFN 裸露焊盤；包裝：管件 類別：集成電路（IC） LED 驅(qū)動(dòng)器 描述：IC LED DRVR LIN PWM 350MA 20TQFN

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亞德諾