可编程充电电流800毫安CXLB7202C CXLB7202恒定电流恒定电压单电池锂离子电池线性充电器充电电压固定在4.2V充电电流可编程外部有一个电阻器自动充电2.9V涓流充电阈值

CXLB7202C CXLB7202是一个完整的恒定电流/恒定电压单电池锂离子电池线性充电器。它的包装和低外部组件数量使CXLB7202C CXLB7202非常适合便携式应用在USB电源规格范围内工作。不需要外部感测电阻器，并且由于内部MOSFET结构，不需要阻塞二极管。这个充电电压固定在4.2V，充电电流可编程外部有一个电阻器。当充电电流在最终浮充后降至编程值的1/10
达到电压。

目录

1.产品概述                       2.产品特点
3.应用范围                       4.下载产品资料PDF文档 
5.产品封装图                     6.电路原理图                   
7.功能概述                        8.相关产品

一,产品概述(General Description)      

   The CXLB7202C CXLB7202 is a complete constant-current/constant voltage

 linear charger for  single cell lithium-ion batteries. Its package and low external 

component count make the CXLB7202C CXLB7202 ideally suited for portable applications.Furthermore, theCXLB7202C CXLB7202 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 MOSFET architecture. The 

charge voltage is fixed at 4.2V, and the charge current can be programmed 

externally with a single resistor.
    The CXLB7202C CXLB7202 automatically terminates the charge cycle when

the charge current drops to 1/10th the programmed value after the final float 

voltage is reached.
     The CXLB7202C CXLB7202 converters are available in the industry standard

 DFN3*3-10L power packages (or upon request).
二.产品特点(Features)

Programmable Charge Current up to 800mA
No MOSFET, Sense Resistor or Blocking Diode Required
Constant-Current/Constant-Voltage
Operation with Thermal Regulation to Maximize Charge Rate
Without Risk of Overheating
Charges Single Cell Li-Ion Batteries
Directly from USB Port
Preset 4.2V Charge Voltage with 1%Accuracy
Automatic Recharge
2.9V Trickle Charge Threshold
Available in DFN3*3-10L Package
三,应用范围 (Applications)

Charger for Li-Ion Coin Cell Batteries
Portable MP3 Players, Wireless Headsets
Bluetooth Applications
Multifunction Wristwatches
四.技术规格书下载（产品PDF）
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！

 

五,产品封装图 (Package)


六.电路原理图


七,功能概述

Input Supply Voltage (VIN)…...…………....................................................................... –0.3V ～ 7V
CHRG1, CHRG2 .......................................................................................... –0.3℃ ～ VIN + 0.3V
VOUT, ISET................................................................................................................... –0.3V ～ 7V
VOUT Pin Current .................................................................................................................. 800mA
Maximum Junction Temperature .......................................................................................... +150℃
Operating Ambient Temperature Range (Note 2)................................................... –40℃ ～ +85℃
Storage Temperature Range …………………………………………….................. –65℃ ～ +125℃
Lead Temperature (Soldering, 10 sec)................................................................................. +265℃
八,相关芯片选择指南

单节锂电池充电管理IC
Model	VIN (V)	VOUT (V)	IOUT	Package	ISLEEP
CXLB7257	4.7V ～ 6V	4.22V	1A	SOP-8L	20
CXLB7257B	4.7V ～ 6V	4.22V	1.5A	SOP-8L	20
CXLB7257C	4.7V ～ 6V	4.22V	1.8A	SOP-8L	20
CXLB7201	4.7V ～ 6V	4.22V	700mA	SOT-23	20
CXLB7201B	4.7V ～ 6V	4.22V	1000mA	SOT-23	20
CXLB7201F	4.7V ～ 6V	4.2V	1A	SOT-23	20
CXLB7202C	4.7V ～ 6V	4.22V	1000mA	SOT-23	20
CXLB7202	4.7V ～ 6V	4.22V	900mA	SOP8	20
CXLB7203G	4.7V ～ 6V	4.22V	900mA	SOP8	20
CXLB7385	4.5~5.5	4.2V	800mA	DFN3*3-10L	20