CXLB7203G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。它的封装和较低的外部组件数量使CXLB7203G非常适合便携式应用。此外，CXLB7203G是专门为在USB电源规格下工作而设计的。充电电压固定在4.22V，充电电流可通过一个电阻器进行外部编程。当充电电流降至编程值的1/10时，CXLB7203G自动终止充电循环达到最终浮充电压后的值
产品技术资料帮助
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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 CXLB7203G is a complete constant current /constant voltage linear charger for single cell lithium-ion batteries.
Its package and low external component count make the CXLB7203G ideally suited for portable applications. Furthermore,
the CXLB7203G is specifically designed to work within USB power specifications.
The charge voltage is fixed at 4.22V, and the charge current can be programmed externally with a single resistor.
The CXLB7203G automatically terminates the charge cycle when the charge current drops to 1/10th the programmed
value after the final float voltage is reached.
The CXLB7203G converters are available in the industry standard SOP8-PP power packages (or upon request).
二.产品特点(Features)
Ø Programmable Charge Current up to 900mA
Ø No MOSFET, Sense Resistor or Blocking Diode Required
Ø Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate
Ø Charges Single Cell Li-Ion Batteries Directly from USB Port
Ø Preset 4.22V Charge Voltage with 1% Accuracy
Ø Automatic Recharge
Ø 2.8V Trickle Charge Threshold
Ø Available in SOP8-PP Package
三,应用范围 (Applications)
Ø Charger for Li-Ion Coin Cell Batteries
Ø Portable MP3 Players, Wireless Headsets
Ø Multifunction Wristwatches
Ø Bluetooth Applications
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 (VCC) ...................................................................................... –0.3V ～ 7V
PROG.......................................................................................................... –0.3V ～ VCC + 0.3V
BAT ...........................................................................................................................–0.3V ～ 7V
CHRG1, CHRG2........................................................................................................–0.3V ～ 7V
BAT Pin Current ................................................................................................................ 1A
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 更多同类产品......
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单节锂电池充电管理IC |
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Model |
VIN (V) |
VOUT (V) |
IOUT |
Package |
ISLEEP |
|
4.7V ～ 6V |
4.22V |
1A |
SOP-8L |
20 |
|
|
4.7V ～ 6V |
4.22V |
1.5A |
SOP-8L |
20 |
|
|
4.7V ～ 6V |
4.22V |
1.8A |
SOP-8L |
20 |
|
|
4.7V ～ 6V |
4.22V |
700mA |
SOT-23 |
20 |
|
|
4.7V ～ 6V |
4.22V |
1000mA |
SOT-23 |
20 |
|
|
4.7V ～ 6V |
4.2V |
1A |
SOT-23 |
20 |
|
|
4.7V ～ 6V |
4.22V |
1000mA |
SOT-23 |
20 |
|
|
4.7V ～ 6V |
4.22V |
900mA |
SOP8 |
20 |
|
|
4.7V ～ 6V |
4.22V |
900mA |
SOP8 |
20 |
|
|
4.5~5.5 |
4.2V |
800mA |
DFN3*3-10L |
20 |
|
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