Cxlb73107 is a complete single lithium-ion battery charger, with battery positive and negative pole reverse connection protection and constant current / constant voltage linear control. Its sot package and a small number of external components make the cxlb73107 an ideal choice for portable applications. Cxlb73107 can work with USB power and adapter power.
Due to the internal PMOSFET architecture and anti reverse charging circuit, external detection resistor and isolation diode are not 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 full voltage is fixed at 4.2V, and the charging current can be set externally through a resistor. When the battery reaches 4.2V, the charging current drops to 1 / 10 of the setting value, and the cxlb73107 will automatically terminate charging. When the input voltage (AC adapter or USB power supply) is removed, cxlb73107 automatically enters a low current state, and the battery leakage current is below 2ua. Other features of the cxlb73107 include charging current monitor, undervoltage lockout, automatic recharging, and two status pins to indicate end of charge and input voltage access

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[ CXLB73107 ]"
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7.相关产品
产品概述 返回TOP
CXLB73107一款完整的单节锂离子电池充电器,带电池正负极反接保护,采用恒定电流/恒定电压线性控制。其SOT封装与较少的外部元件数目使得CXLB73107便携式应用的理想选择。CXLB73107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,所以不需要外部检测电阻器和隔离二极管。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。充满电压固定于4.2V,而充电电流可通过一个电阻器进行外部设置。当电池达到4.2V之后,充电电流降至设定值1/10, CXLB73107将自动终止充电。当输入电压(交流适配器或USB电源)被拿掉时, CXLB73107自动进入一个低电流状态,电池漏电流在2uA以下。CXLB73107的其他特点包括充电电流监控器、欠压闭锁、自动再充电和两个用于指示充电结束和输入电压接入的状态引脚。
产品特点 返回TOP
·锂电池正负极反接保护;
·高达500mA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
·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;
·可直接从USB 端口给单节锂离子电池充电;
·精度达到±1%的4.2V 预设充电电压;
·最高输入可达9V;
·自动再充电;
·2 个充电状态开漏输出引脚;
·C/10 充电终止;
·待机模式下的供电电流为40uA;
·2.9V涓流充电器件版本;
·软启动限制了浪涌电流;
·采用6 引脚SOT-23封装。
应用范围 返回TOP
·充电座
·蜂窝电话、PDA、MP3播放器
·蓝牙应用
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。。。。。。
锂电充电IC |
|||||
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 |