ADD8754

LCD Panel Power, VCOM, and Gate Modulation

GENERALDESCRIPTION TheADD8754isoptimizedforuseinTFTLCDapplications,requiringonlyexternalchargepumpcomponentstoprovidealltherequirementsforpanelpower,VCOM,andgatemodulation.Includedinasinglechipareahighfrequencystep-updc-to-dcswitchingregulator,logicvolta

ADD8754

LCD面板功率、VCOM和柵極調(diào)制

ADD8754針對TFT LCD應(yīng)用進(jìn)行了優(yōu)化，只需外部電荷泵元件，便可滿足面板電源、 VCOM及柵極調(diào)制的所有要求。單芯片中集成了高頻升壓DC-DC開關(guān)穩(wěn)壓器、邏輯穩(wěn)壓器、VCOM放大器和柵極脈沖調(diào)制電路。\n\n升壓DC-DC轉(zhuǎn)換器提供最高20V的輸出電壓，并含有一個(gè)2A內(nèi)部開關(guān)。升壓開關(guān)穩(wěn)壓器頻率可以選擇650kHz或1.2MHz，便于濾波和低噪聲工作。它可實(shí)現(xiàn)93%的效率并具有軟啟動(dòng)特性，可以限制啟動(dòng)時(shí)的涌入電流。\n\n內(nèi)部穩(wěn)壓器采用3 V至5.5 V的輸入電壓工作，可提供最高350 mA的負(fù)載電流。輸出電壓有三種選擇：2.5 V、2.85 V和3.3 V。\n\n專有VCO; ? 升壓開關(guān)穩(wěn)壓器，內(nèi)置2 A電源開關(guān)\n\n? 開關(guān)頻率：650 kHz或1.2 MHz\n\n? 可調(diào)輸出電壓達(dá)20V \n\n? 350 mA邏輯穩(wěn)壓器\n\n? 可選輸出電壓：\n2.5 V, 2.85 V, 3.3 V \n\n? VCOM 放大器具有300 mA驅(qū)動(dòng)能力;

ADD8754ACPZ-REEL

LCD Panel Power, VCOM, and Gate Modulation

GENERALDESCRIPTION TheADD8754isoptimizedforuseinTFTLCDapplications,requiringonlyexternalchargepumpcomponentstoprovidealltherequirementsforpanelpower,VCOM,andgatemodulation.Includedinasinglechipareahighfrequencystep-updc-to-dcswitchingregulator,logicvolta

ADD8754ACPZ-REEL7

LCD Panel Power, VCOM, and Gate Modulation

GENERALDESCRIPTION TheADD8754isoptimizedforuseinTFTLCDapplications,requiringonlyexternalchargepumpcomponentstoprovidealltherequirementsforpanelpower,VCOM,andgatemodulation.Includedinasinglechipareahighfrequencystep-updc-to-dcswitchingregulator,logicvolta

ADD8754-EVAL

Evaluation Kit for LCD Power, VCOM, and Gate Modulation

PRODUCTDESCRIPTION TheADD8754-EVALsimplifiestheevaluationoftheADD8754device.Itincludesafullyassembledevaluationboardanddetailedusageinstructions. ThisdatasheetdescribestheADD8754evaluationboardonly.ForspecificinformationregardingtheADD8754device,LCDpower,VCO

ADD8754_15

LCD Panel Power, V, and Gate Modulation