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    首頁(yè)產(chǎn)品索引MIC4832

    MIC4832

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    Inductor Based Single Lamp EL Driver

     

    中文數(shù)據(jù)手冊(cè)

    產(chǎn)品信息

    The MIC4832 is a low noise 220VPP electroluminescent (EL) lamp driver. Using advanced Bipolar, CMOS, DMOS (BCD) technology, the MIC4832 integrates a high voltage boost converter and an H-bridge driver for driving a large EL lamp. The MIC4832 can drive large panel displays for mobile phones, MP3 players, or automotive electronics where EL panels are used for backlighting.The MIC4832 offers design flexibility with adjustable lamp and boost converter frequencies, simply by applying external resistors. A new H-bridge design reduces audible noise by creating smoother AC voltage across the EL panel.The MIC4832 is offered in 3mm x 3mm MLF? and MSOP-8 lead-free and RoHS-compliant packaging with a -40°C to 85°C junction temperature range.

      1.8V to 5.5V DC input voltage

      220VPP?output voltage capable

      Low audible noise EL drive waveform

      Supports EL panel sizes up to 3in2 (19cm2)

      Low 25μA operating supply current

      Small inductor size with low profile (220μH)

      Tiny 8-pin 3mm x 3mm MLF?package

      Adjustable boost converter frequency

      Adjustable EL lamp frequency

      10nA shutdown current

    電路圖、引腳圖和封裝圖

    在線(xiàn)購(gòu)買(mǎi)

    型號(hào)制造商描述購(gòu)買(mǎi)
    MIC4832YML-TRLittelfuse Inc. 立即購(gòu)買(mǎi)
    MIC4832YMM-TRSensata Technologies/Airpax 立即購(gòu)買(mǎi)
    MIC4832YMMONCAT1023 是一款用于基于微控制器的系統(tǒng)的完整內(nèi)存和監(jiān)督方案。EEPROM 串行 2-Kb CPU 監(jiān)督器 和系統(tǒng)電源監(jiān)督器帶有欠電壓保護(hù),采用低功耗 CMOS 工藝進(jìn)行集成。內(nèi)存接口通過(guò) 400 kHz I?C 總線(xiàn)實(shí)現(xiàn)。CAT1023 提供精確的 VCC 感應(yīng)電路和兩個(gè)開(kāi)漏輸出:一個(gè) (RESET) 驅(qū)動(dòng)高電平,一個(gè) (RESET) 在 VCC 降至重置閾值電壓之下時(shí)驅(qū)動(dòng)低電平。如果 WP 聯(lián)接邏輯高電平,寫(xiě)操作則禁用。該監(jiān)督器具有一個(gè) 1.6 秒監(jiān)督計(jì)時(shí)器電路,如果軟件或硬件故障暫?;颉皰炱稹毕到y(tǒng),則將系統(tǒng)重置為某個(gè)已知狀態(tài)。CAT1023 具有一個(gè)單獨(dú)的監(jiān)督計(jì)時(shí)器中斷輸入引腳,WDI。該電源監(jiān)控電路保護(hù)內(nèi)存和系統(tǒng)控制器,并在電源通電/關(guān)斷期間以及針對(duì)欠電壓情況對(duì)其進(jìn)行重置。五個(gè)重置閾值電壓支持 5.0 V、3.3 V 和 3.0 V 系統(tǒng)。如果電源電壓超出容差范圍,重置信號(hào)則變?yōu)橛行顟B(tài),阻止系統(tǒng)微控制器、ASIC 或外圍設(shè)備運(yùn)行。重置信號(hào)通常在電源電壓超過(guò)重置閾值水平 200 ms 之后變?yōu)闊o(wú)效狀態(tài)。通過(guò)有效高電平和低電平重置信號(hào)連接微控制器和其他集成電路非常簡(jiǎn)單。另外,重置引腳或單獨(dú)的輸入 MR 可用作按鈕手動(dòng)重置能力的輸入。該片上 2-Kb EEPROM 內(nèi)存具有 16 字節(jié)頁(yè)。另外,硬件數(shù)據(jù)保護(hù)由 VCC 感應(yīng)電路提供,在 VCC 降至重置閾值以下或 VCC 在通電期間尚未達(dá)到重置閾值之前阻止寫(xiě)入內(nèi)存??刹捎?8 引腳 DIP、8 引腳 SOIC、8 引腳 TSSOP、8 引腳 TDFN 和 8 引腳 MSOP。TDFN 封裝厚度最大為 0.8mm。 立即購(gòu)買(mǎi)

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