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          首頁 >MAX8821>規(guī)格書列表

          型號下載 訂購功能描述制造商 上傳企業(yè)LOGO

          MAX8821

          White LED Charge Pump with Mono Class D Audio Amp and Dual LDO

          General Description The MAX8821 integrates a charge pump for white LEDs, an audio loudspeaker amplifier, and two low noise LDOs controlled by an I2C control interface. The high-efficiency, adaptive-mode inverting charge pump drives up to six LEDs with constant current for uniform brightness. The

          文件:902.7 Kbytes 頁數(shù):29 Pages

          MAXIM

          美信

          MAX8821

          Fully Assembled and Tested

          文件:231.99 Kbytes 頁數(shù):14 Pages

          MAXIM

          美信

          MAX8821

          白光LED電荷泵,具有單聲道D類音頻放大器和兩路LDO

          MAX8821集成了白光LED電荷泵、音頻揚聲器放大器以及兩路低噪聲LDO,由I2C接口控制。高效自適應模式反相電荷泵能夠以固定電流驅(qū)動6只LED,保持均勻亮度。LED電流由I2C接口控制,每個LED的電流可以在0.1mA至25.6mA范圍內(nèi)以偽對數(shù)形式分32級進行設置。由于可獨立調(diào)節(jié)每個LED的電壓,即使在LED正向電壓(VF)不匹配的情況下也能夠保持最高效率。內(nèi)部溫度降額功能可以在溫度高于+40°C時降低電流,提供有效的LED保護。\n高效單聲道D類音頻放大器在5V供電時能夠為4Ω揚聲器提供2W功率。放大器采用專有的無濾波有源輻射抑制(AEL)技術(shù)。AEL可以避免傳統(tǒng)D類放大器中感性負載所 ? 白光LED反相電荷泵 \n? 6路低壓差電流調(diào)節(jié)器 \n? 每個LED電流提供斜坡升/降控制 \n? TA降額功能為LED提供有效保護 \n? 效率高達85% (RL = 8Ω, POUT = 600mW) \n? 1kHz時PSRR高達65dB \n? -3dB至+24dB增益設置范圍,3dB步長 \n? 低靜態(tài)電流 \n? 輸出噪聲45μVRMS,70dB PSRR \n? 200mA、300mA輸出電流驅(qū)動;

          ADI

          亞德諾

          MAX8821ETI+

          White LED Charge Pump with Mono Class D Audio Amp and Dual LDO

          General Description The MAX8821 integrates a charge pump for white LEDs, an audio loudspeaker amplifier, and two low noise LDOs controlled by an I2C control interface. The high-efficiency, adaptive-mode inverting charge pump drives up to six LEDs with constant current for uniform brightness. The

          文件:902.7 Kbytes 頁數(shù):29 Pages

          MAXIM

          美信

          MAX8821EVKIT

          Fully Assembled and Tested

          文件:231.99 Kbytes 頁數(shù):14 Pages

          MAXIM

          美信

          MAX8821EVKIT+

          Fully Assembled and Tested

          文件:231.99 Kbytes 頁數(shù):14 Pages

          MAXIM

          美信

          MAX8821ETI+

          Package:28-WFQFN 裸露焊盤;包裝:卷帶(TR) 類別:集成電路(IC) LED 驅(qū)動器 描述:IC LED DRVR RGLTR I2C 28TQFN

          AD

          亞德諾

          MAX8821ETI+T

          Package:28-WFQFN 裸露焊盤;包裝:卷帶(TR) 類別:集成電路(IC) LED 驅(qū)動器 描述:IC LED DRVR RGLTR I2C 28TQFN

          AD

          亞德諾

          MAX8821EVKIT+

          包裝:盒 功能:串行器,解串器(SerDes) 類別:開發(fā)板,套件,編程器 評估和演示板及套件 描述:KIT EVAL FOR MAX8821

          AD

          亞德諾

          技術(shù)參數(shù)

          • Tags:

            Backlight

          • Battery Input:

            1-Cell Li+

          • Regulation Topology:

            Charge Pump

          • Max. No. of LEDs:

            6

          • LED Channels:

            4

          • LED Configuration:

            Parallel

          • Iled per Channel(max)(A):

            0.025

          • Dimming Ratio(max):

            256

          • Dimming Control:

            I2C Serial

          • Pout(W):

            0.6

          • Vin(min)(V):

            2.7

          • Vin(max)(V):

            5.5

          • Icc(max)(mA):

            0.12

          • LED String Volt.(max)(V):

            5.5

          • Fxd. Freq.:

            Yes

          • Oper. Freq.(kHz):

            1000

          • Features:

            Internal Switch

          • RoHS Available:

            Yes

          • Oper. Temp.(°C):

            -40 to +85

          • Package/Pins:

            TQFN/28

          • Smallest Available Pckg.(max w/pins)(mm2):

            16.8

          • Budgetary Price(See Notes):

            $3.02 @1k

          供應商型號品牌批號封裝庫存備注價格
          MAXIM
          13+
          QFN
          3738
          原裝分銷
          詢價
          Maxim
          1716+
          ?
          11520
          只做原裝進口,假一罰十
          詢價
          MaximIntegrated
          24+
          28-TQFN(4x4)
          66800
          原廠授權(quán)一級代理,專注汽車、醫(yī)療、工業(yè)、新能源!
          詢價
          Maxim
          20+
          na
          65790
          原裝優(yōu)勢主營型號-可開原型號增稅票
          詢價
          MAXIM/美信
          24+
          SSOPQFN
          25050
          原廠支持公司優(yōu)勢現(xiàn)貨
          詢價
          Maxim Integrated
          24+
          28-WFQFN 裸露焊盤
          39500
          一級代理/放心采購
          詢價
          Maxim
          1931+
          N/A
          567
          加我qq或微信,了解更多詳細信息,體驗一站式購物
          詢價
          N/A
          2447
          SMD
          100500
          一級代理專營品牌!原裝正品,優(yōu)勢現(xiàn)貨,長期排單到貨
          詢價
          MAXIM
          25+
          QFN-28
          1001
          就找我吧!--邀您體驗愉快問購元件!
          詢價
          Maxim
          22+
          28TQFN
          9000
          原廠渠道,現(xiàn)貨配單
          詢價
          更多MAX8821供應商 更新時間2026-1-20 9:01:00
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