CXLB7318是一款用于2系列锂离子电池的单片开关充电器，采用电压模式PWM降压（buck）开关结构，充电电流可达2A。CXLB7318通过CV（恒压）和CC（恒流）回路调节电池电压和充电电流。故障状态包括热关机、超时和输出短路。其他安全功能包括电池温度监测和充电状态指示。CXLB7318有14针标准操作程序包
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目录
产品概述 返回TOP
The CXLB7318 is a monolithic switching charger for 2-series Li-ion cells battery, It achieves up to 2A charge current with voltage mode PWM step- down (buck) switching architecture.CXLB7318 regulates the battery voltage and charge current with CV(constant voltage) and CC(constant current) loops. Fault condition includes thermal shutdown、time out and output short. Other safety features include battery temperature monitoring and charge status indication. The CXLB7318 is available in 14-pin SOP package
产品特点 返回TOP
●100% Maximum Duty Cycle
● 0.5% Charge Voltage Accuracy
● Low 10uA Reverse Battery Drain Current
● Programmable Charge Current Up To 2A
● Fixed 400kHz Frequency
● Suitable For 2-Cell Li-Ion Batteries
● Automatic Battery Recharge
● Soft Start
● Battery Temperature Monitoring
● Thermal Shutdown And Protection
● Status Indication
● 18V Maximum Input Voltage Rating
● Ambient Temperature Range: -20℃～70℃
● 14-Lead SOP Package Available
应用范围 返回TOP
● Handheld Products
● Portable Equipment
● Distributed Power Systems
● Portable DVD Players
● Notebook
● Chargers for 2-cell Lion Batteries
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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开关型锂电池充电IC SWITCH LI-LON BATTERY CHARGERS |
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Part No. |
VIN |
Charge |
Trickle |
Float |
Protection |
Notes |
Package |
Status |
|
|
(Min) |
(Max) |
Current |
Voltage |
||||||
|
(V) |
(A) |
Charge |
(v) |
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|
4.35 |
5.5 |
2 |
Yes |
4.2 |
OTP |
1 Cell |
SOP8E/DFN10 |
MP |
|
|
4.45 |
5.5 |
2 |
Yes |
4.35 |
OTP |
1 Cell |
SOP8E/DFN10 |
MP |
|
|
开关式开关式单节、双节锂电池充电IC Battery charger |
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|
Part number |
Switching freq(kHz) |
Vin(max)(v) |
Cells |
Integrated FET |
Charge current(max)(mA) |
Control topology |
Package |
|
400 |
18 |
2 |
NO |
2000 |
Switch mode |
TSSOP-14 |
|
|
400 |
4.5-12 |
1\2 |
NO |
开关式单节、双节锂电池充电管理芯片.2A充电电流 |
SWITCH-MODE |
TSSOP-14 |
|
|
开关式内置功率管、单节2.0A锂电池充电管理芯片 |
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开关式内置功率管、单节2.0A锂电池充电管理芯片 |
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2A充电、3A升压输出 |
移动电源二合一芯片 |
TSSOP16 |
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|
400 |
16 |
2 |
N |
2000 |
Switch mode |
SOP14 |
|
|
500 |
6.5 |
1 |
NO |
2500 |
Switch mode |
TSSOP16 |
|
|
7.5 |
1 |
Yes |
600 |
Linear |
MSOP-8 |
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