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首页 > 产品中心 > 电池充电芯片 > 锂电充电芯片 > 单节锂电池充电芯片 >CXLB7312单电池集成恒流CC恒流电压CV锂离子电池充电器内置热反馈机制调节充电电流控制高功率运行或环境温度升高时的模具温度 温度
CXLB7312单电池集成恒流CC恒流电压CV锂离子电池充电器内置热反馈机制调节充电电流控制高功率运行或环境温度升高时的模具温度 温度
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CXLB7312是一个单电池,完全集成恒流(CC)/恒流电压(CV)锂离子电池充电器。其紧凑的包装,外部最小组件需求使CXLB7312成为便携式应用的理想选择。CXLB7312不需要外部感测电阻器或阻断二极管。内置热反馈机制调节充电电流控制高功率运行或环境温度升高时的模具温度温度。
CXLB7312具有预充电功能,用于深度放电的滴流充电电池。快速充电电流可由外部电阻编程。一旦电池的充电曲线,CV调节模式将自动启用达到恒压部分。然后输出电流衰减当充电电流降至编程值的1/10时,最终终止。CXLB7312持续监测蓄电池电压并启用新的充电周期一旦电压降到低于CV值150毫伏,电源状态将持续监测并自动将蓄电池放电电流降至最小值当CXLB7312检测到输入电源不足时。在关机模式下,CXLB7312可将电源电流降低至小于25μA。状态引脚输出逻辑高/低指示充电状态和电源的存在。其他功能包括充电电流监视器,欠压锁定

CXLB7312单电池集成恒流CC恒流电压CV锂离子电池充电器内置热反馈机制调节充电电流控制高功率运行或环境温度升高时的模具温度 温度
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产品简介

目录x2K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(产品PDF文档) x2K嘉泰姆
5.产品封装图   6.电路原理图  7.功能概述      8.相关产品x2K嘉泰姆

一,产品概述(General Description)      直线x2K嘉泰姆

  The CXLB7312 is a single cell, fully integrated constant current (CC)/constantx2K嘉泰姆

voltage (CV) Li-ion battery charger. Its compact package with minimum external  x2K嘉泰姆

components requirement makes the CXLB7312 ideal for portable applications.x2K嘉泰姆

No external sense resistor or blocking diode is necessary for the CXLB7312.x2K嘉泰姆

Build-in thermal feedback mechanism regulates the charge current to controlx2K嘉泰姆

the die temperature during high power operation or at elevated ambientx2K嘉泰姆

temperature.x2K嘉泰姆

  The CXLB7312 has a pre-charge function for trickle charging deeply dischargedx2K嘉泰姆

batteries. The fast charge current can be programmed by an external resistor.x2K嘉泰姆

CV regulation mode is automatically enabled once the battery’s charging curvex2K嘉泰姆

reaches the constant voltage portion. The output current then decays and isx2K嘉泰姆

finally terminated once the charge current drops to 1/10th of the programmed value.x2K嘉泰姆

The CXLB7312 keeps monitoring the battery voltage and enables a new charge cycle x2K嘉泰姆

once the voltage drops by 150mV below the CV value.Power supply state is constantly x2K嘉泰姆

monitored and the battery drain current is reduced to minimum value automatically x2K嘉泰姆

when the CXLB7312 senses a lack of input power. In its shutdown mode, the CXLB7312x2K嘉泰姆

can reduce the supply current to less than 25μA. A status pin outputs a logic HIGH/LOW x2K嘉泰姆

to indicate the charging status and the presence of power supply.x2K嘉泰姆

 Other features include charge current monitor,under-voltage lockout.x2K嘉泰姆

二.产品特点(Features)直线x2K嘉泰姆

·Standalone Capability with no Requirement x2K嘉泰姆

of External MOSFET, Sense Resistor orBlocking Diode.x2K嘉泰姆

·Complete Linear Charger in Compact Packagex2K嘉泰姆

for Single Cell Lithium-Ion Batteriesx2K嘉泰姆

·Programmable Pre-charge, Fast Charge and Termination Current.x2K嘉泰姆

·Constant-Current/Constant-Voltage Operationx2K嘉泰姆

with Thermal Regulation to Maximize Chargex2K嘉泰姆

Rate Without Risk of Overheatingx2K嘉泰姆

·Charges Single Cell Li-Ion Batteries Directly from USB Portx2K嘉泰姆

·Preset 4.2V Charge Voltage with ±1% Accuracyx2K嘉泰姆

·Automatic Rechargex2K嘉泰姆

·Charge Status Output Pinx2K嘉泰姆

·C/10 Charge Terminationx2K嘉泰姆

·25μA Supply Current in Shutdownx2K嘉泰姆

·2.9V Trickle Charge Thresholdx2K嘉泰姆

·Soft-Start Limits Inrush Currentx2K嘉泰姆

·Available in SOT-23-6 and ESOP8 Packagex2K嘉泰姆

三,应用范围 (Applications)直线x2K嘉泰姆

Cellular Telephones, PDAs, MP3 Playersx2K嘉泰姆

Charging Docks and Cradlesx2K嘉泰姆

Bluetooths Applicationsx2K嘉泰姆

四.技术规格书下载(产品PDF)直线x2K嘉泰姆

需要详细的PDF规格书请扫一扫微信联系我们x2K嘉泰姆

                        x2K嘉泰姆

五,产品封装图 (Package)直线x2K嘉泰姆
blob.pngblob.pngx2K嘉泰姆

六.电路原理图x2K嘉泰姆

直线x2K嘉泰姆
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七,相关芯片选择指南x2K嘉泰姆
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锂电池充电芯片(Li-ion Battery Charger )
Part No. Features VIN Series Cells Max Charger Charger Type Output Accu. Package Application
CXLB7310B Temperature Regulation, Trickle   Charge, C/10 Charge Termination, USB Compliant 4.25~6.5V,Max 10V 1 800mA Linear 4.2V±1%  4.3V±1% 4.4V±1% SOT23-5 TSOT23-5 单节锂电供电设备
CXLB7311B 1A Lithium Ion Battery Linear Charger 4~6.5V 1 1A Linear 4.2V±1%  4.35V±1% ESOP8 单节锂电供电设备
CXLB7312 500mA/1.5A Lithium Ion Battery Linear Charger 4.25~6V 1 500mA/1.5A Linear 4.2V±1%  4.35V±1% SOT23-6 ESOP8 单节锂电供电设备
CXLB7313 2A Lithium Ion Battery Switching Charger 4.2~6V 1 2A Switching 4.2V±1%  4.35V±1% DFN3x3-10 单节锂电供电设备