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首页 > Products > Battery Charging Chip > Lithium Charging Chip > Single Lithium Battery Charging Chip >锂离子电池恒流恒压线性充电器800mA电池反向连接保护CXLB7329充电电压固定在4.2V充电电流电阻在外部编程达到最终浮充电压后充电电流降至编程值的1/10时CXLB7329A自动终止充电循环
锂离子电池恒流恒压线性充电器800mA电池反向连接保护CXLB7329充电电压固定在4.2V充电电流电阻在外部编程达到最终浮充电压后充电电流降至编程值的1/10时CXLB7329A自动终止充电循环

CXLB7329是一款适用于单电池锂离子电池的完整恒流/恒压线性充电器。此外,CXLB7329A专门设计用于USB电源规格。由于内部PMOSFET结构,无需外部感测电阻器,也无需阻塞二极管。热反馈调节充电电流,以限制高功率运行或高环境温度下的模具温度。充电电压固定在4.2V,充电电流可以用一个电阻在外部编程。当达到最终浮充电压后,充电电流降至编程值的1/10时,CXLB7329A自动终止充电循环。当输入电源(墙壁适配器或USB电源)被卸下时,CXLB7329A自动进入低电流状态,将电池放电电流降至小于2μa。CXLB7329A可进入关机模式,将电源电流降至55μa。其他功能包括充电电流监视器、欠压锁定,自动充电和状态。

锂离子电池恒流恒压线性充电器800mA电池反向连接保护CXLB7329充电电压固定在4.2V充电电流电阻在外部编程达到最终浮充电压后充电电流降至编程值的1/10时CXLB7329A自动终止充电循环
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                          目录grM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)grM嘉泰姆

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

一.产品概述grM嘉泰姆


    CXLB7329A is a complete constant-current/constant voltage linear charger for single cell lithium-ion batteries. Furthermore the CXLB7329A 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,and the charge current can be programmed externally with a single resistor. The CXLB7329A 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 CXLB7329A automatically enters a low current state dropping the battery drain current to less than 2μA.The CXLB7329A can be put into shutdown mode reducing the supply current to 55μA. Other features include charge current monitor, undervoltage lockout, automatic recharge and a status.grM嘉泰姆

二.产品特点grM嘉泰姆


 ●Protection of battery cell reverse connectiongrM嘉泰姆

 ●No MOSFET sense resistor or blocking diode requiredgrM嘉泰姆

 ●Complete Linear Charger in Thin SOT Package for Single Cell Lithium-Ion Batteries  grM嘉泰姆

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

 ● Preset 4.2V charge voltage with ±1% accuracygrM嘉泰姆

 ● Automatic RechargegrM嘉泰姆

 ●Charges Single Cell Li-Ion Batteries Directly from USB PortgrM嘉泰姆

 ●C/10 charge terminationgrM嘉泰姆

 ● 55μA supply current in shutdowngrM嘉泰姆

 ● 2.9V trickle current charge thresholdgrM嘉泰姆

 ● Soft-Start limits inrush currentgrM嘉泰姆

 ●Charge Status Output PingrM嘉泰姆

 ●Available in SOT23-6 PackagegrM嘉泰姆

三.应用范围grM嘉泰姆


 ●Cellular Telephones, PDAs, MP3 PlayersgrM嘉泰姆

 ●Charging Docks and CradlesgrM嘉泰姆

 ●Bluetooth Applications    grM嘉泰姆

四.技术规格书(产品PDF)grM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grM嘉泰姆

 QQ截图20160419174301.jpggrM嘉泰姆

五.产品封装图grM嘉泰姆


blob.pnggrM嘉泰姆

blob.png  grM嘉泰姆

六.电路原理图grM嘉泰姆


blob.png   grM嘉泰姆

七.相关芯片选择指南    更多同类产品......grM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