Cxlb73158 is a perfect linear power management chip with constant current and constant voltage for lithium-ion battery. Its thin size and small outer packaging make it suitable for portable applications. What's more, the cxlb73158 is specially designed for USB power supply specifications. Due to the internal MOSFET structure, external resistors and blocking diodes are not needed in application. In high energy operation and high peripheral temperature, thermal feedback can control the charging current to reduce the chip temperature. The charging voltage is limited to 4.2V, and the charging current is regulated by external resistance. After the target charging voltage is reached, when the charging current drops to 1 / 10 of the set value, the cxlb73158 will automatically end the charging process. When the input terminal (plug or USB power supply) is unplugged, the cxlb73158 will automatically enter the low current state, and the battery leakage current will drop below 2 μ a. The cxlb73158 can also be set to stop working state to reduce the power supply current to 25 μ a. Other features include: charging current monitoring, input low-voltage blocking, automatic recharging and charging full and start charging signs.

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产品概述 返回TOP
CXLB73158 是一个完善的单片锂离子电池恒流/恒压线形电 源管理芯片。它薄的尺寸和小的外包装使它适用于便携式产 品的应用。更值得一提的是,CXLB73158 专门设计适用于 USB 的供电规格。得益于内部的 MOSFET 结构,在应用上不需 要外部电阻和阻塞二极管。在高能量运行和高外围温度时, 热反馈可以控制充电电流以降低芯片温度。 充电电压被限定在 4.2V,充电电流通过外部电阻调节。 在达到目标充电电压后,当充电电流降低到设定值的 1/10 时,CXLB73158 就会自动结束充电过程。当输入端(插头或 USB 提供电源)拔掉后,CXLB73158 自动进入低电流状态,电池漏 电流将降到 2μA 以下。CXLB73158 还可被设置于停止工作状态, 使电源供电电流降到 25μA。 其余特性包括:充电电流监测,输入低电压闭锁,自动 重新充电和充电已满及开始充电的标志。
产品特点 返回TOP
可编程使充电电流可达 500mA.
不需要 MOSFET,传感电阻和阻塞二极管
小尺寸实现对锂离子电池的完全线性充电管理
恒流/恒压运行和热度调节使得电池管理效力最高,没 有热度过高的危险
从 USB 接口管理单片锂离子电池
预设充电电压为 4.2V 1%
充电电流输出监测
充电状态指示标志
1/10 充电电流终止
停止工作时提供 25μA 电流
2.9V 涓流充电阈值电压
软启动限制浪涌电流
ESD(HBM)>7KV
应用范围 返回TOP
手机,PDA,MP3
蓝牙应用
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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.......
Li-ion电池充电管理 | ||||||
产品名称 | 工作电压(V) | 输出电流(mA) | 静态电流(uA) | 震荡频率(KHz) | 最高效率(%) | 封装形式 |
CXLB7309 | 4.25-6.5 | 500 | 25 | Linear | Y | SOT-23-5,SOT-89-5 |
CXLB7308 | 4.25-6.5 | 1000 | 25 | Linear | Y | ESOP-8 |
CXLB73154 | 4.25-6.5 | 100 | 25 | Linear | N | SOT-553,SOT-23-5L,l SOT-89-5L |
CXLB73155 | 4.25-10 | 500 | 40 | Linear | N | SOT-23-6L |
CXLB73156 | 4.25-10 | 1000 | 40 | Linear | N | ESOP8 |
CXLB73157 | 4.25-10 | 500 | 40 | Linear | N | SOT-23-5L,SOT-89-5L |
CXLB73158 | 4.25-6.5 | 500 | 25 | Linear | N | SOT-23-5L,SOT-89-5L |
CXLB73159 | 4.25-6.5 | 300 | 25 | Linear | N | SOT-23-5L,SOT-89-5L |
CXLB73160 | 3.8-6.0 | 800 | 25 | Linear | N | SOP-8 |
CXLB73161 | 4.25-6.5 | 500 | 25 | Linear | N | SOT-23-6L |
CXLB73162 | 4.25-6.5 | 1000 | 40 | Linear | N | ESOP-8 |
CXLB73163 | 4.25-6.5 | 1000 | 40 | Linear | Y | ESOP-8 |