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1.产品概述       2.产品特点     LWG嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）LWG嘉泰姆

5.产品封装       6.电路原理图  LWG嘉泰姆

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   产品概述 返回TOPLWG嘉泰姆

     CXLB7398 is a complete constant-current/constant voltage linear charger for single cell lithium-ion batteries. With a thermally enhanced 8-PIN SOP package on the bottom and low external component count make the CXLB7398 ideally suited for portable applications. Furthermore the CXLB7398  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 PMOSFET 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 / 4.34V, and the charge current can be programmed externally with a single resistor.  The CXLB7398 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 CXLB7398 automatically enters a low current state dropping the battery drain current to less than 2μA.The    CXLB7398 can be put into shutdown mode reducing the supply current to 55μA.Other features include Battery temperature monitor, under-voltage lockout, automatic recharge and two status pins to indicate charge and charge termination.

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   产品特点 返回TOPLWG嘉泰姆

●Protection of battery cell reverse connection LWG嘉泰姆

● Programmable charge current up to 1A  LWG嘉泰姆

●No MOSFET sense resistor or blocking diode required LWG嘉泰姆

●Complete linear Charger in SOP8 Package for single Cell Lithium-Ion Batteries. LWG嘉泰姆

●Constant-Current/Constant-Voltage  operation with thermal regulation to maximize Rate Without risk of overheating. LWG嘉泰姆

● Preset 4.2V / 4.34V charge voltage with ±1% accuracy LWG嘉泰姆

● Automatic Recharge LWG嘉泰姆

● Two Status Indication for Charge status, no battery and battery failure indicators LWG嘉泰姆

● C/10 charge termination LWG嘉泰姆

● 55μA supply current in shutdown LWG嘉泰姆

● 2.9V trickle current charge threshold LWG嘉泰姆

● Soft-Start limits inrush current LWG嘉泰姆

● Battery Temperature Sensing LWG嘉泰姆

   应用范围 返回TOPLWG嘉泰姆

●Cellular Telephones LWG嘉泰姆

●Digital Still Cameras LWG嘉泰姆

●MP3 Players LWG嘉泰姆

●Bluetooth Applications LWG嘉泰姆

●Portable Devices LWG嘉泰姆

●USB Bus-Powered ChargersLWG嘉泰姆

   技术规格书（产品PDF) 返回TOP LWG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！LWG嘉泰姆

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产品封装图 返回TOPLWG嘉泰姆

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电路原理图 返回TOPLWG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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◀ Previous: The CXLB7392 is a constant current, constant voltage Li-Ion battery charger controller that uses a current mode PWM step-down (buck) switching architecture500kHz switching frequency

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Next▶:The cxlb73100 is a complete single lithium-ion battery charger, with reverse connection protection of positive and negative electrodes of the battery, with greater 600mA charging current