CXLB7382单电池锂离子电池的完整恒流/恒压线性充电器可编程充电电流800mA自动充电状态输出引脚C/10充电终止2.9V涓流充电阈值

CXLB7382是一款用于单电池锂离子电池的完整恒流/恒压线性充电器。它的SOT33-5封装和低外部组件数量使CXLB7382非常适合便携式应用。此外，tcxlb7382可以在USB和墙壁适配器中工作。由于内部PMOSFET结构，无需阻塞二极管，并具有防止负电荷电流电路。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。达到最终浮充电压后，当充电电流降至编程值的1/10时，CXLB7382自动终止充电循环。CXLB7382其他功能包括电流监视器、欠压锁定、自动充电和指示充电终止的充电状态引脚

目录

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）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

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The CXLB7382 is a complete constant‐current/constant‐voltage linear charger for single cell lithium‐ion batteries. Its SOT23‐5 package and low external component count make the CXLB7382 ideally suited for portable applications. Furthermore, the TCXLB7382can work within USB and wall adapter. No blocking diode is required due to the internal PMOSFET architecture and have prevent to negative Charge Current Circuit. 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 CXLB7382automatically terminates the charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage is reached. CXLB7382Other features include current monitor, under voltage lockout, automatic recharge and charge status pin to indicate charge termination.

   产品特点 返回TOP

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 Programmable Charge Current Up to 800mA 

 No MOSFET, Sense Resistor or Blocking Diode Rquired 

 Complete Linear Charger in SOT23‐5 Package for Single Cell Lithium‐Ion Batteries 

 Constant‐Current/Constant‐Voltage 

 Charges Single Cell Li‐Ion Batteries Directly from USB Port 

 Preset 4.2V Charge Voltage with 1.5% Accuracy 

 Automatic Recharge    

 Charge Status Output Pins 

 C/10 Charge Termination 

 2.9V Trickle Charge Threshold    

 Soft‐Start Limits Inrush Current 

 Available Radiator in SOT23‐5 Package, the Radiator need connect GND or impending

   应用范围 返回TOP

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 Cellular Telephones, PDAs, GPS 

 Charging Docks and Cradles 

 Digital Still Cameras, Portable Devices 

 USB Bus‐Powered Chargers, Chargers

   技术规格书（产品PDF) 返回TOP 

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产品封装图 返回TOP

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电路原理图 返回TOP

 

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Battery Management
Part No.	Package	Description
CXLB7382	SOT23-5	0.8A  Standalone Linear Li-lon Battery Charger with Thermal Regulation
CXLB7383	SOP9-PP	1A Standalone   Linear Li-lon Battery Charger with Thermal Regulation
CXLB7384	WCSP	Fully   Integrated Switch-Mode ChargerWith USB Compliance and USB-OTG Support