Cxlb7267d cxlb7267m is a charge management chip for constant current / voltage charging of a single lithium battery. The internal part includes reference, bias, voltage comparator and temperature detection modules. The DC-DC control mode is adopted, the frequency is 1.5MHz, and the charging current is set by the external resistance, up to 2A. When the input voltage is lower than 4.35v, the chip enters sleep mode
In operation mode, the power consumption will be reduced to below 60 μ A and the charging will be cut off at the same time. The charging process of the chip is composed of trickle current, constant current, constant voltage and recharging. There are two LEDs outside to display various charging states. Built in temperature protection and load short circuit protection ensure high reliability of IC. By adjusting the signal of the mode port, you can choose the output current as the programming current or 0.6 times of the programming current to adapt to different adapters to meet the bc1.2 standard. At the same time, according to the voltage of VIN port, cxlb7267d cxlb7267m also has the function of automatically identifying USB2.0 or usb3.0v!
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目录
产品概述 返回TOP
CXLB7267D CXLB7267M是一款对单节锂电池进行恒流/恒压充电的充电管理芯片。内部包括基准，偏置、电压比较器和温度检测等模块，采用DC-DC控制模式，频率为1.5MHz，充电电流由外部电阻设置，最大可达 2A。当输入电压低于4.35V时，芯片进入SLEEP MODE工
作模式，此时功耗会降低到60μA以下，同时关断充电。该芯片充电过程由涓流、恒流、恒压和再充电等过程组成，外部有2个LED可以对各种充电状态进行显示。内置温度保护与负载短路保护，确保IC的高可靠性。通过调节MODE端口的信号，可以选择输出电流为编
程电流或者0.6倍编程电流，用来适应不同的适配器，用以满足BC1.2标准。同时根据VIN端口的电压，CXLB7267D CXLB7267M也具备自动识别USB2.0或USB3.0V功能！
采用 DFN-10L、DFN-8L、SOP8-PP 等封装形式
产品特点 返回TOP
恒流 PWM 电流模 DC-DC 控制
恒压 LDO 控制
防反灌功能
充电电压精度为±1%，充电电流精度为±10%
低功耗工作
充电状态指示标志和充满状态指示标志
自动再充电
应用范围 返回TOP
移动电话
数码相机
MP4 播放器
电子词典
便携式设备
各种充电器
移动电源
PADs
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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开关模式单节锂电充电IC |
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产品型号 |
输出电压 |
输入电压 |
最大充电电流 |
充电截止电压 |
精度 |
涓流电止电压 |
功耗 |
封装 |
|
4.19V |
4.5-6.5V |
2A |
4.19V |
±1% |
2.9V |
3mA |
ESOP-8 |
|
|
4.2V |
3.8-6.5V |
2.5A |
4.2V |
±1% |
2.9V |
190uA |
ESOP8 |
|
|
4.35V |
3.8-6.5V |
2.5A |
4.35V |
±1% |
2.9V |
190uA |
ESOP8 |
|
|
4.2V |
4.5-5.5V |
2.5A |
4.2V |
±1% |
2.9V |
70uA |
ESOP8 |
|
|
4.35V |
4.4-5.5V |
2.5A |
4.35V |
±1% |
2.5V |
70uA |
ESOP8 |
|
|
4.2V |
4.0-6.5V |
3.5A |
4.2V以上可调 |
±1% |
2.9V |
70uA |
ESOP-8 |
|
|
4.2V |
4.5-28V |
扩流4A |
4.2V以上可调 |
±1% |
2.9V |
1mA |
SSOP-10 |
|
|
4.2V |
4.83-28V |
扩流4A |
4.2V以上可调 |
±1% |
3.1V |
1mA |
SSOP-10 |
|
|
4.2V |
5.0-20V |
扩流3A |
4.2V |
±1% |
3.0V |
1mA |
MSOP-10 |
|
|
4.2V |
4.8V-20V |
3A |
4.2V |
±1% |
2.9V |
1.5mA |
SOP-8 |
|
|
4.2V |
4.35-6V |
2A |
4.2V |
±1% |
2.9V |
60uA |
DFN3*3-10 |
|
|
4.2V |
4.35-6V |
2A |
4.2V以上可调 |
±1% |
2.9V |
60uA |
DFN3*3-10 |
|
|
单节 |
最大20V |
扩流3A |
4.2V |
0.50% |
3.0V |
10mA |
MSOP-10 |
|
