目录

1.产品概述       2.产品特点     i9e嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）i9e嘉泰姆

5.产品封装       6.电路原理图  i9e嘉泰姆

7.相关产品i9e嘉泰姆

   产品概述 返回TOPi9e嘉泰姆

The CXLB73111 is a complete constant-current/constant- voltage linear charger for single cell lithium-ion batteries. Its ThinSOT package and low external component count make the CXLB73111 ideally suited for portable applications. Furthermore,the CXLB73111 is specifically designed to work within USB power specifications. 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 CXLB73111 automatically terminates the charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage is reached. When the input supply (wall adapter or USB supply) is removed,the CXLB73111 automatically enters a low current state dropping the battery drain current to less than 2μA. The  CXLB73111 can be put into shut down mode, reducing he supply current to 25μA.Other features include charge current monitor, undervoltage lockout, automatic recharge and a status pin to indicate charge termination and the presence of an input voltage.

CXLB73111是一款完整的单节锂离子电池充电器，带电池正负极反接保护，采用恒定电流/恒定电压线性控制。其SOT封装与较少的外部元件数目使得CXLB73111成为便携式应用的理想选择。CXLB73111可以适合USB电源和适配器电源工作。i9e嘉泰姆
        由于采用了内部PMOSFET架构，加上防倒充电路，所以不需要外部检测电阻器和隔离二极管。热反馈可对充电电流进行自动调节，以便在大功率操作或高环境温度条件下对芯片温度加以限制。充满电压固定于4.2V，而充电电流可通过一个电阻器进行外部设置。当电池达到4.2V之后，充电电流降至设定值1/10， CXLB73111将自动终止充电。i9e嘉泰姆
         当输入电压（交流适配器或USB电源）被拿掉时， CXLB73111自动进入一个低电流状态，电池漏电流在2uA以下。CXLB73111的其他特点包括充电电流监控器、欠压闭锁、自动再充电和一个用于指示充电结束和输入电压接入的状态引脚。

   产品特点 返回TOPi9e嘉泰姆

Programmable Charge Current Up to 600mAi9e嘉泰姆

 No MOSFET, Sense Resistor or Blocking Diode Requiredi9e嘉泰姆

 Complete Linear Charger in ThinSOT Package fori9e嘉泰姆

 Single Cell Lithium-ion Batteriesi9e嘉泰姆

 Constant-Current/Constant-Voltage Operationi9e嘉泰姆

with Thermal Regulation to Maximize Chargei9e嘉泰姆

Rate Without Risk of Overheatingi9e嘉泰姆

 Charges Single Cell Li-Ion Batteries Directlyi9e嘉泰姆

from USB Porti9e嘉泰姆

 Preset 4.2V Charge Voltage with ± 1.5% Accurac yi9e嘉泰姆

 Charge Current Monitor Output for Gas Gaugingi9e嘉泰姆

 Automatic Rechargei9e嘉泰姆

 Soft-Start Limits Inrush Currenti9e嘉泰姆

 Available in 5-Lead SOT-23 Packagei9e嘉泰姆

 2.9V Trickle Charge Thresholdi9e嘉泰姆

 C/10 Charge Terminationi9e嘉泰姆

 25uA Supply Current in Shutdowni9e嘉泰姆

 2.9V Trickle Charge Thresholdi9e嘉泰姆

·锂电池正负极反接保护；i9e嘉泰姆
·高达500mA的可编程充电电流；i9e嘉泰姆
·无需MOSFET、检测电阻器或隔离二极管；i9e嘉泰姆
·用于单节锂离子电池i9e嘉泰姆
·恒定电流/恒定电压操作，并具有可在无过热危险的情况下实现充电速率最大化的热调节功能；i9e嘉泰姆
·可直接从USB 端口给单节锂离子电池充电；i9e嘉泰姆
·最高输入可达9V；i9e嘉泰姆
·精度达到±1%的4.2V 预设充电电压；i9e嘉泰姆
·自动再充电；i9e嘉泰姆
·1 个充电状态开漏输出引脚；i9e嘉泰姆
·C/10 充电终止；i9e嘉泰姆
·待机模式下的供电电流为40uA；i9e嘉泰姆
·2.9V涓流充电；i9e嘉泰姆
·软启动限制了浪涌电流；i9e嘉泰姆
·采用5 引脚SOT-23封装。i9e嘉泰姆

   应用范围 返回TOPi9e嘉泰姆

Portable Media Players/MP3 playersi9e嘉泰姆

 Cellular and Smart mobile phonei9e嘉泰姆

 Charging Docks and Cradlesi9e嘉泰姆

 Bluetooth Applicationsi9e嘉泰姆

·充电座i9e嘉泰姆
·蜂窝电话、PDA、MP3播放器i9e嘉泰姆
·蓝牙应用i9e嘉泰姆

   技术规格书（产品PDF) 返回TOP i9e嘉泰姆

     需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！i9e嘉泰姆

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产品封装图 返回TOPi9e嘉泰姆

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电路原理图 返回TOPi9e嘉泰姆

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相关芯片选择指南 返回TOP                       更多同类产品。。。。。。

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