Cxlb7301 is a single lithium battery switch type charging with charging current of 2.5A. It integrates the function of dynamic path management. The internal resistance of the internal path switch is only 50mohm, which allows the system to maintain the normal operation of the system when there is no battery. The cxlb7301 has a unique level 2 charging setting that can be set by pin 0,1, and the current setting does not need expensive precision resistance. Cxlb7301 also has the function of input current automatic detection and maintenance of input voltage to ensure that the input interface will not be pulled dead when the input power supply is insufficient. The cxlb7301 also has all the other functions necessary for lithium battery charging, such as abnormal shutdown of battery temperature, overtime shutdown of charging, overcurrent, overheat protection, etc. With qfn3x-16 package, cxlb7301 is the most cost-effective and concise switch type lithium battery charging IC
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目录
1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（PDF文档）
一.产品概述
CXLB7301是一款充电电流达2.5A的单节锂电开关型充电。其集成了动态路径管理功能，内部路径的开关内阻仅50mohm，允许系统在没有电池的情况下，仍然可以在适配器存在是维持系统正常工作。CXLB7301有特有的2级充电设定可通过引脚的0,1来设定，且电流设定无需昂贵的精密电阻。CXLB7301还具有输入电流自动检测维持输入电压的功能，保证输入供电不足时，不把输入接口拉死。其他锂电池充电所必须的功能，CXLB7301也一应俱全，如电池温度异常关断，充电超时关断，过流，过热保护等。CXLB7301采用QFN3x-16封装，是迄今性价比最高，外围最简洁的开关型锂电充电IC。
二.产品特点
输入电压达6.5V
2.5A充电电流
动态路径管理
输入维持电压4.3V
电池充电截止电压4.2V
两级充电电流设定
无需毫欧级精密电阻
高达95%的转换效率
3MHz开关频率
空载待机电流70uA
三.应用范围
平板电脑
智能手机
移动电源
其他含大容量锂电池的电子设备
四.技术规格书（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
六.电路原理图
七.相关芯片选择指南
| 锂电充电 | |||||||||||
| Device | Device | Architecture | VIN | Final | Power Path | IOUT | Vhold | Switching | IQ | Package | |
| Description | (min) | (max) | Vbat | Rdson | (max) | (V) | Frequency | (uA) | |||
| (V) | (V) | (mohm) | (A) | (Hz) | |||||||
| CXLB7301 | 2.5A开关型锂电充电 | 开关充电+路径管理 | 4.3 | 6.5 | 4.2 | 50 | 2.5 | 4.3 | 3M | 70 | QFN3x3-16 |
| CXLB7302 | 2.5A开关型锂电充电 | 开关充电+路径管理 | 4.3 | 6.5 | 4.2 | 50 | 2.5 | 4.3 | 3M | 70 | ESOP8 |
| CXLB7303 | 2.5A开关型锂电充电 | 开关充电+路径管理 | 4.3 | 6.5 | 4.2 | 50 | 2.5 | 4.5 | 3M | 70 | QFN3x3-16 |
| CXLB7304 | 2.5A开关型锂电充电 | 开关充电+路径管理 | 4.3 | 6.5 | 4.35 | 50 | 2.5 | 4.5 | 3M | 70 | QFN3x3-16 |
| CXLB7305 | 3A开关型充电/OTG | 开关充电/OTG | 4.3 | 6 |
4. 2/4.35 |
N/A | 3 | Adj | 1-2M | 10 | QFN4x4-32 |
| CXLB7306 | 3A开关型充电/OTG | 开关充电/OTG | 4.3 | 6 | 4.2 | N/A | 3 | 4.6 | 1-2M | 10 | QFN3x3-20 |
| CXLB7307 | 2.5A开关型锂电充电 | 开关充电+路径管理 | 4.3 | 6.5 | 4.35 | 50 | 2.5 | 4.3 | 3M | 70 | ESOP8 |
