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            充電管理IC-BRCL4054CME

            充電管理IC-BRCL4054CME

            產品介紹:BRCL4054CME是一款完整的單節鋰離子電池采用恒定電流/恒定電壓線性充電器。其SOT封裝與較 少的外部元件數目使得BRCL4054CME成為便攜式應用的理想選擇。BRCL4054CME可以適合USB電源 和適配器

            產品詳細

            描述 / Descriptions 
            充電管理IC
            BRCL4054CME是一款完整的單節鋰離子電池采用恒定電流/恒定電壓線性充電器。其SOT封裝與較
            少的外部元件數目使得BRCL4054CME成為便攜式應用的理想選擇。BRCL4054CME可以適合USB電源
            和適配器電源工作。
            The BRCL4054CME is a complete constant-current/constant voltage linear charger for single cell
            lithium-ion batteries. Its Thin SOT package and low external component count make the
            BRCL4054CME ideally suited for portable applications. Furthermore, the BRCL4054CME is
            specifically designed to work within USB power specifications.
            由于采用了內部PMOSFET架構,加上防倒充電路,所以不需要外部檢測電阻器和隔離二極管。熱反
            饋可對充電電流進行調節,以便在大功率操作或高環境溫度條件下對芯片溫度加以限制。充電電壓固定
            于4.2V,而充電電流可通過一個電阻器進行外部設置當充電電流在達到最終浮充電壓之后降至設定值
            1/10時,BRCL4054CME將自動終止充電循環。
            No external sense resistor is needed, and no blocking diode is required due to the internal
            MOSFET architecture. Thermal feedback regulates the charge current to limit the die temperature
            during high power operation or high ambient temperature. The charge voltage is fixed at 4.2V, and the
            charge current can be programmed externally with a single resistor. The BRCL4054CME
            automatically terminates the charge cycle when the charge current drops to 1/10th the programmed
            value after the final float voltage is reached.
            當輸入電壓(交流適配器或USB電源)被拿掉時,BRCL4054CME自動進入一個低電流狀態,將電池
            漏電流降至2uA以下。也可將BRCL4054CME置于停機模式,以而將供電電流降至25uA。
            BRCL4054CME的其他特點包括充電電流監控器、欠壓閉鎖、自動再充電和一個用于指示充電結束和輸
            入電壓接入的狀態引腳。
            When the input supply (wall adapter or USB supply) is removed, the BRCL4054CME automatically
            enters a low current state, dropping the battery drain current to less than 2μA. The BRCL4054CME
            can be put into shutdown mode, reducing the supply current to 25μA. Other features include charge
            current monitor, under voltage lockout, automatic recharge and a status pin to indicate charge
            termination and the presence of an input voltage. 
            特征 / Features
            ¾ 高達500mA的可編程充電電流
            Programmable Charge Current Up to 500mA
            ¾ 無需MOSFET、檢測電阻器或隔離二極管
            No MOSFET, Sense Resistor or Blocking Diode Required
            ¾ 用于單節鋰離子電池、采用SOT23-5封裝的完整線性充電器
            ¾ Complete Linear Charger in 5-Lead SOT-23 Package for Single Cell Lithium-Ion Batteries
            ¾ 恒定電流/恒定電壓操作,并具有熱調節功能
            Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate
            Without Risk of Overheating
            ¾ 直接從USB端口給單節鋰離子電池充電
            Charges Single Cell Li-Ion Batteries Directly from USB Port
            ¾ 4.2V預設充電電壓
            Preset 4.2V Charge Voltage with ±1% Accuracy
            ¾ 用于電池電量檢測的充電電流監控器輸出
            Charge Current Monitor Output for Gas Gauging
            ¾ 自動再充電
            Automatic Recharge 
            ¾ 充電狀態輸出引腳
            Charge Status Output Pin
            ¾ C/10充電終止
            C/10 Charge Termination
            ¾ 待機模式下的供電電流為25μA
            25μA Supply Current in Shutdown
            ¾ 2.9V涓流充電器件版本
            2.9V Trickle Charge Threshold
            ¾ 軟啟動限制了浪涌電流
            Soft-Start Limits Inrush Current
            ¾ 單燈使用時,充滿后燈全滅。
            When using a single lamp, the light is completely extinguished after fully charging..
            ¾ 無鹵產品。
             Halogen-free Product. 
            用途 / Applications
            蜂窩電話、PDA、MP3播放器;
            Cellular Telephones, PDAs, MP3 Players
            ¾ 充電座
            Charging Docks and Cradles
            ¾ 藍牙應用
            Bluetooth Applications. 

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