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可编程充电电流800mA自动终止充电循环CXLB7310B单电池锂离子电池的恒流恒压线性充电器充电电流监视器欠压锁定自动充电
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CXLB7310B是一款用于单电池锂离子电池的恒流/恒压线性充电器。其薄型SOT封装和低外部组件数量使CXLB7326B非常适合便携式应用。此外,CXLB7326B是专门为在USB电源规格下工作而设计的。由于内部MOSFET结构,不需要外部感测电阻,也不需要阻塞二极管。热反馈调节充电电流,以在高功率运行或高环境温度下限制模具温度。充电电压固定在4.2V,充电电流可通过一个电阻器进行外部编程。当达到最终浮充电压后,充电电流降至编程值的1/10时,CXLB7326B自动终止充电循环。当卸下输入电源(墙壁适配器或USB电源)时,CXLB7326B自动进入低电流状态,将电池放电电流降至小于2μa。CXLB7326B可进入关机模式,将电源电流降至25μa。其他功能包括充电电流监视器、欠压锁定,自动充电和状态引脚

可编程充电电流800mA自动终止充电循环CXLB7310B单电池锂离子电池的恒流恒压线性充电器充电电流监视器欠压锁定自动充电
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产品简介

                          目录kSe嘉泰姆

   1.产品概述      2.产品特点      3.应用范围     4.技术规格书下载(PDF文档)kSe嘉泰姆

   5.产品封装      6.电路原理图     7.相关产品kSe嘉泰姆

一.产品概述kSe嘉泰姆


   CXLB7326 is a constant-current/constant-voltage linear charger for single cell lithium-ion batteries. Its Thin SOT package and low external component count make the CXLB7326B ideally suited for portable applications. Furthermore, the CXLB7326B 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 CXLB7326B automatically terminates he 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 CXLB7326B automatically enters a low current state, dropping the battery drain current to less than 2μA.The CXLB7326Bcan be put into shutdown mode, reducing the supply current to 25μA. Other features include charge current monitor, undervoltage lockout, automatic recharge and a status pin  kSe嘉泰姆

二.产品特点kSe嘉泰姆


  Programmable Charge Current Up to 800mAkSe嘉泰姆

  No MOSFET, Sense Resistor or Blocking Diode RequiredkSe嘉泰姆

  Complete Linear Charger in ThinSOT Package for Single Cell Lithium-Ion atterieskSe嘉泰姆

   Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk of OverheatingkSe嘉泰姆

  Charges Single Cell Li-Ion Batteries Directly from USB PortkSe嘉泰姆

  Preset 4.2V Charge Voltage with ±1% AccuracykSe嘉泰姆

  Automatic RechargekSe嘉泰姆

  Charge Status Output PinkSe嘉泰姆

  C/10 Charge TerminationkSe嘉泰姆

  25μA Supply Current in ShutdownkSe嘉泰姆

  2.9V Trickle Charge ThresholdkSe嘉泰姆

  Soft-Start Limits Inrush CurrentkSe嘉泰姆

  Available in 5-Lead SOT-23 PackagekSe嘉泰姆

三.应用范围kSe嘉泰姆


  Cellular Telephones, PDAs, MP3 PlayerskSe嘉泰姆

  Charging Docks and CradleskSe嘉泰姆

  Bluetooth Applications    kSe嘉泰姆

四.技术规格书(产品PDF)kSe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kSe嘉泰姆

 QQ截图20160419174301.jpgkSe嘉泰姆

五.产品封装图kSe嘉泰姆


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六.电路原理图kSe嘉泰姆


blob.png   kSe嘉泰姆

七.相关芯片选择指南     更多同类产品......kSe嘉泰姆


Li-ion   Battery Charger(锂电池充电芯片)
Part Number VFLOAT VIN Max Charger Charger Accu. IQ Package
Type
CXLB7326 4.2V 4.25-6.5V 800mA Linear ±1% 25uA SOT23-5
CXLB7327 4.2V 4.25-6.5V 800mA Linear ±1% 55uA SOT23-5
CXLB7328 4.2V 4.25-6.5V 800mA Linear ±1% 55uA SOT23-5
CXLB7329 4.2V 4.25-6.5V 800mA Linear ±1% 55uA SOT23-6
CXLB7330 4.2V/4.34V 4.25-6.5V 1000mA Linear ±1% 55uA ESOP8
CXLB7331 4.2V/4.34V 4.25-6.5V 1000mA Linear ±1% 55uA ESOP8
CXLB7332 8.4V/8.7V 4.7-20V 2000mA Switch ±1% 10uA SOP8
CXLB7333 4.2V/4.34V 4.7-5.5V 2000mA Switch ±1% 1uA ESOP8
Applications:①Mobile phone②MID③PDA④Battery   Charger⑤Bluetooth equipment