Cxlb73112 is a complete single lithium-ion battery with constant current / constant voltage linear charger. The sop8 package with heat sink at the bottom and the small number of external components make the cxlb73112 an ideal choice for portable applications. Cxlb73112 can work with USB power and adapter power.
Because of the internal PMOSFET structure and anti reverse charging circuit, no external isolation diode is needed. Thermal feedback can adjust the charging current automatically, so as to limit the chip temperature under high power operation or high ambient temperature conditions. The charging voltage is fixed at 4.2V, and the charging current can be set externally through a resistor. The cxlb73112 will automatically terminate the charging cycle when the charging current drops to 1 / 10 of the set value after reaching the final floating charge voltage. When the input voltage (AC adapter or USB power supply) is removed, cxlb73112 automatically enters a low current state, reducing the battery leakage current to less than 2ua. Cxlb73112 can also be placed in shutdown mode when there is power supply to reduce the power supply current to 55ua. Other features of the cxlb73112 include battery temperature detection, undervoltage blocking, automatic recharging, and two LED status pins to indicate charging and ending.
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[ CXLB73112 ]"
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7.相关产品
产品概述 返回TOP
CXLB73112是一款完整的单节锂离子电池采用恒定电流/恒定电压线性充电器。其底部带有散热片的SOP8封装与较少的外部元件数目使得CXLB73112成为便携式应用的理想选择。CXLB73112可以适合USB电源和适配器电源工作。
由于采用了内部PMOSFET架构，加上防倒充电路，所以不需要外部隔离二极管。热反馈可对充电电流进行自动调节，以便在大功率操作或高环境温度条件下对芯片温度加以限制。充电电压固定于4.2V，而充电电流可通过一个电阻器进行外部设置。当充电电流在达到最终浮充电压之后降至设定值1/10 时， CXLB73112将自动终止充电循环。当输入电压（交流适配器或USB电源）被拿掉时， CXLB73112自动进入一个低电流状态，将电池漏电流降至2uA以下。CXLB73112在有电源时也可置于停机模式，以而将供电电流降至55uA。CXLB73112的其他特点包括电池温度检测、欠压闭锁、自动再充电和两个用于指示充电、结束的LED 状态引脚。
产品特点 返回TOP
·高达1000mA的可编程充电电流
·无需MOSFET、检测电阻器或隔离二极管
·用于单节锂离子电池、采用SOP封装的完整线性充电器
·恒定电流/恒定电压操作，并具有可在无过热危险的情况下实现充电速率最大化的热调节功能
·精度达到±1%的4.2V 预设充电电压
·用于电池电量检测的充电电流监控器输出
·自动再充电
·充电状态双输出、无电池和故障状态显示
·C/10 充电终止
·待机模式下的供电电流为55uA
·2.9V涓流充电
·软启动限制了浪涌电流
·电池温度监测功能
·采用8 引脚SOP-PP/MSP-PP封装。
应用范围 返回TOP
·移动电话、PDA
·MP3、MP4播放器
·数码相机
·电子词典
·GPS
·便携式设备、各种充电器
技术规格书（产品PDF) 返回TOP
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！
产品封装图 返回TOP
电路原理图 返回TOP
相关芯片选择指南 返回TOP 更多同类产品。。。。。。
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锂电充电IC |
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|
型号 |
输入电压 |
输出电压 |
最大充电流 |
待机电流 |
封装 |
|
5V |
4.2V/4.34V |
1A |
55μA |
SOP-8 |
|
|
9~10V |
8.4 |
1000mA |
55μA |
DIP-8 |
|
|
9V |
4.2V |
600mA |
145uA |
SOT23-5 |
|
|
10V |
5V |
1.2A |
55μA |
SOP-8 |
|
|
5V |
4.2V |
600mA |
25uA |
SOT-23-5 |
|
|
4.75~7V |
4.2 v |
500MA |
55μA |
SOT-23-6L |
|
|
4.25~6 |
4.2 v |
800MA |
20uA |
SOT-23 and PSOP-8 |
|
|
9V |
4.2 v |
600mA |
145uA |
SOT-23-6L |
|
|
4.25~6.5 |
4.2V |
800mA |
25uA |
SOT-23-5 |
|
|
4.0~9.0 |
4.2V |
500mA |
40uA |
SOT-23-6L |
|
|
9V |
4.2V |
500mA |
40uA |
TSOT-23 |
|
|
4.2V~6.5V |
4.2V |
800mA |
45uA |
SOT23-5 |
|
|
9-10V |
8.4 |
1A |
25uA |
SOP-8L |
|
|
5.5 |
4.2V |
600mA |
25uA |
SOT-23 |
|
|
4.0~8.0 |
4.2V |
1A |
55uA |
SOP-8 |
|
|
4.5~6.5V |
4.2V |
800mA |
25μA |
SOT-23-5 |
|
|
3.6V |
12V |
800mA |
25μA |
SOT-23-6 |
|
|
8V-36V |
4.8A |
25μA |
SOP-8 |
||
|
5V~16V |
1.2V~16V |
2A |
25μA |
SOP-8 |
|
|
4.7v-6v |
4.2V |
2A |
4μA |
SOP-8 |
|
|
2.3V~5.5V |
1.5A |
1μA |
SOT23-5 |
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