CXLB7250DR是一个完整的单节锂离子电池采用CC / CV的线性充电器。它是专门设计用于在USB电 源工作。 由于采用了内部MOSFET的结构，不需要外部检测电阻和隔离二极管

   产品概述 返回TOPet1嘉泰姆

CXLB7250DR是一个完整的单节锂离子电池采用CC / CV的线性充电器。它是专门设计用于在USB电 源工作。  由于采用了内部MOSFET的结构，不需要外部检测电阻和隔离二极管。热反馈可对充电电流进行自动 调节，以便在大功率运行或高环境温度条件下对芯片电流加以限制。充电电压固定在4.2V，而充电电 流可通过一个电阻进行外部设置，当充电电流达到最终浮充电压后，下降到设定值1/10时， CXLB7250DR自动终止充电循环。  当输入电压（交流适配器或USB电源）被去掉时，CXLB7250DR自动进入低电流状态，同时将电池漏 电流降至2μA以下。CXLB7250DR也可以进入停机模式，供电电流降低到55μA。其他功能还包括电池 温度监测、欠压锁定、自动再充电和两个用于指示充电、结束的状态引脚。 CXLB7250DRis a complete CC/CV linear charger for single cell lithium-ion batteries. it 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 P-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 +0$ 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 +0$automatically enters a low current state dropping the battery drain current to less than 2μA. The +0$ can be put into shut down 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.

   产品特点 返回TOPet1嘉泰姆

 Programmable charge current up to 1.2A/可编程充电电流达1.2A et1嘉泰姆

 No MOSFET sense resistor or blocking diode required/无需MOSFET、检测电阻或隔离二极管 Complete linear Charger for single Cell Lithium-Ion Batteries/完全线性充电器单节锂离子电池 et1嘉泰姆

 CC and CV operation with thermal regulation to maximize Rate without risk of overheating/ 恒定 电流和恒定电压操作，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。 et1嘉泰姆

 Preset 4.2V charge voltage with ±1% accuracy/预设4.2V充电电压，精度±1%  Automatic Recharge/自动再充电 et1嘉泰姆

 Two Status Indication for Charge status, no battery and battery failure indicators/充电状态双输 出、无电池和故障状态显示 et1嘉泰姆

 C/10 charge termination/ C/10充电终止 et1嘉泰姆

 55μA supply current in shutdown/待机模式下的供电电流为55uA et1嘉泰姆

 2.9V trickle current charge threshold/2.9V涓流充电阈值 et1嘉泰姆

 Soft-Start limits inrush current/软启动限制浪涌电流 et1嘉泰姆

 Battery Temperature Sensing/电池温度监测功能 et1嘉泰姆

 Available in SOP-8 and ESOP-8 package./SOP-8和ESOP-8封装et1嘉泰姆

   应用范围 返回TOPet1嘉泰姆

 Cellular Telephones/移动电话  et1嘉泰姆

 Mobile Power Supply/移动电源  et1嘉泰姆

 Digital Still Cameras/数码相机  et1嘉泰姆

 MP3 Players/MP3播放器  et1嘉泰姆

 Bluetooth Applications/蓝牙应用  et1嘉泰姆

 Portable Devices/便携式设备  et1嘉泰姆

 USB Bus-Powered Chargers/USB总线供电充电器<span style="font-size: 18px;">et1嘉泰姆

   技术规格书（产品PDF) 返回TOP et1嘉泰姆

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