Low-Cost CCFL Backlight Controller

General Description The MAX8722 integrated backlight controller is optimized to drive cold-cathode fluorescent lamps (CCFLs) using a full-bridge resonant inverter architecture. Resonant operation maximizes striking capability and provides near-sinusoidal waveforms over the entire input range to i

文件：331.79 Kbytes 頁數(shù)：20 Pages

MAXIM

美信

Low-Cost CCFL Backlight Controller

General Description The MAX8722C integrated backlight controller is optimized to drive cold-cathode fluorescent lamps (CCFLs) using a full-bridge resonant inverter architecture. Resonant operation maximizes striking capability and provides near-sinusoidal waveforms over the entire input range to

文件：561.52 Kbytes 頁數(shù)：21 Pages

MAXIM

美信

Low-Cost CCFL Backlight Controller

General Description The MAX8722C integrated backlight controller is optimized to drive cold-cathode fluorescent lamps (CCFLs) using a full-bridge resonant inverter architecture. Resonant operation maximizes striking capability and provides near-sinusoidal waveforms over the entire input range to

文件：561.52 Kbytes 頁數(shù)：21 Pages

MAXIM

美信

Low-Cost CCFL Backlight Controller

General Description The MAX8722 integrated backlight controller is optimized to drive cold-cathode fluorescent lamps (CCFLs) using a full-bridge resonant inverter architecture. Resonant operation maximizes striking capability and provides near-sinusoidal waveforms over the entire input range to i

文件：331.79 Kbytes 頁數(shù)：20 Pages

MAXIM

美信

Low-Cost CCFL Backlight Controller

文件：383.39 Kbytes 頁數(shù)：20 Pages

MAXIM

美信

Low-Cost CCFL Backlight Controller

文件：383.39 Kbytes 頁數(shù)：20 Pages

MAXIM

美信

低成本CCFL背光控制器

MAX8722C集成背光控制器采用全橋諧振逆變器架構(gòu)，優(yōu)化用于驅(qū)動冷陰極熒光燈(CCFL)。在整個輸入范圍內(nèi)，諧振工作能夠保證可靠啟輝，并提供近似正弦的驅(qū)動波形，以提高CCFL壽命?？刂破鞴ぷ髟趯捿斎腚妷悍秶?4.6V至28V)，具有較高的電能-光能轉(zhuǎn)換效率。器件還具有安全特性，在發(fā)生燈管移除、短路等單點故障情況時能夠提供有效保護(hù)。\n MAX8722C采用數(shù)字脈沖寬度調(diào)制(DPWM)方式打開/關(guān)閉燈管電流，可以獲得10:1的亮度調(diào)節(jié)范圍。DPWM頻率可由電阻精確調(diào)節(jié)或同步至外部信號，亮度由CNTL引腳上的模擬電壓進(jìn)行控制。器件直接驅(qū)動全橋逆變器的4個外部n溝道功率MOSFET。內(nèi)部5.4V線 \n? 同步諧振頻率 \n? 延長燈管壽命 \n? 保證可靠啟輝 \n? 較高的電能-光能轉(zhuǎn)換效率 \n? 寬輸入電壓范圍(4.6V至28V) \n? 輸入電壓前饋，實現(xiàn)出色的電源抑制 \n? 采用模擬接口實現(xiàn)精確的亮度控制 \n? 10:1亮度調(diào)節(jié)范圍 \n? 可調(diào)節(jié)的高精度DPWM頻率，帶有同步功能 \n? 可調(diào)節(jié)的燈管電流上升和下降時間 \n? 次級電壓限制，降低變壓器壓力 \n? 帶有可調(diào)超時的燈管移除保護(hù) \n? 帶有可調(diào)超時的次級過流保護(hù) \n? 低成本、24引腳QSOP封裝;

ADI

亞德諾

Package：24-SSOP（0.154"，3.90mm 寬）；包裝：卷帶（TR）剪切帶（CT）Digi-Reel? 得捷定制卷帶 類別：集成電路（IC） 照明，鎮(zhèn)流器控制器 描述：IC CCFL CNTRL 80KHZ 24QSOP

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亞德諾

包裝：盒 功能：CCFL 背光控制器 類別：開發(fā)板，套件，編程器 評估和演示板及套件 描述：KIT EVALUATION FOR MAX8722A

AD

亞德諾

Package：24-SSOP（0.154"，3.90mm 寬）；包裝：管件 類別：集成電路（IC） 照明，鎮(zhèn)流器控制器 描述：IC CCFL CNTRL 80KHZ 24QSOP

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亞德諾