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      深圳市利盛達科技有限公司 利盛達科技讓電源設計更便捷可靠|聯系電話:13928434054
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      RT9505,TDFN-10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

      RT9505】TDFN-10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

      • 將RT9505添加至收藏夾 用郵件咨詢RT9505的相關信息 就RT9505 QQ咨詢,也可電話至139 2843 4054。

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      RT9505 詳細介紹

      RT9505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。較少的外部元件數目使得RT9505成為便攜式應用的理想選擇。RT9505可以適合USB電源和適配器電源工作。由于采用了內部PMOSFET架構,加上防倒充電路,所以不需要外部隔離二極管。熱反饋可對充電電流進行自動調節,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,RT9505將自動終止充電循環。當輸入電壓(交流適配器或USB電源)被拿掉時,RT9505自動進入一個低電流狀態,將電池漏電流降至2uA以下。RT9505的其他特點包括電池溫度檢測、欠壓閉鎖、自動再充電和兩個用于指示充電、結束的LED狀態引腳。


      RT9505 特點
      1、高達18V輸入電壓
      2、無需MOSFET、檢測電阻器或隔離二極管
      3、用于單節鋰離子電池、采用TDFN-10封裝的完整線性充電器
      4、恒定電流/恒定電壓操作,并具有可在無過熱危險的情況下實現充電速率最大化的熱調節功能
      5、精度達到±1%的4.2V預設充電電壓
      6、用于電池電量檢測的充電電流監控器輸出
      7、自動再充電
      8、充電狀態雙輸出、無電池和故障狀態顯示
      9、C/10充電終止
      10、2.9V涓流充電
      11、軟啟動限制了浪涌電流
      12、電池溫度監測功能
      13、采用TDFN-10封裝


      RT9505 應用
      ·移動電話、PDA
      ·MP3、MP4播放器
      ·數碼相機
      ·電子詞典
      ·GPS
      ·便攜式設備、各種充電器

      The RT9505 is a fully integrated low cost single-cell Li-Ion battery charger IC ideal for portable applications. The RT9505 is capable of being powered up from AC adapter.The RT9505 enters sleep mode when AC adapter is removed.
      The RT9505 optimizes the charging task by using a control algorithm including preconditioning mode, fast charge mode and constant voltage mode. The charging task is terminated as the charge current drops below the preset threshold. The AC adapter charge current can be programmed up to 1A with an external resister. The internal thermal feedback circuitry regulates the die temperature to optimize the charge rate for all ambient temperatures.
      The RT9505 features 18V maximum rating voltages for AC adapter. The other features are under voltage protection, over voltage protection for AC adapter supply and battery temperature monitoring.

      RT9505 Features
      RT9505 18V Maximum Rating for AC Adapter
      RT9505 Internal Integrate P-MOSFETs
      RT9505 AC Adapter Power Good Status Indicator
      RT9505 Charge Status Indicator
      RT9505 Under Voltage Protection
      RT9505 Over Voltage Protection
      RT9505 Automatic Recharge Feature
      RT9505 Battery Temperature Monitoring
      RT9505 Small 10-Lead WDFN Package
      RT9505 Thermal Feedback Optimizing Charge Rate
      RT9505 RoHS Compliant and 100% Lead (Pb)-Free

      RT9505 Applications
      Digital Cameras
      Cellular Phones
      Personal Data Assistants (PDAs)
      MP3 Players
      Hand Held PCs


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