Cxlb7249 is a complete single lithium battery constant current constant voltage linear charging IC, with a maximum charging current of 800mA. It uses a very small sot-23-5l package and requires only a few external components, so it can be fully applied to the application of portable products. The cxlb7249 is designed for USB power features and can also be used as an independent linear lithium battery charger
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目录
产品概述 返回TOP
CXLB7249是一款完整的单节锂电池恒流恒压 线性充电IC，最大充电电流可达到 800mA。 它采用极小的 SOT-23-5L 封装，只需要外接 极少的外部元件，使它能完全适用于便携式产 品的应用。CXLB7249专为USB电源特性设 计，同时CXLB7249也可以作为独立的线性锂 电池充电器。
产品特点 返回TOP
充电电流最大可编程至 800mA
无需外接 MOSFET、二极管和感应电阻
过温保护恒流恒压充电
具备电池防反接功能
可从 USB 口直接给单节锂电池充电
预设 4.2V 充电电压，精度达到±1%
涓流充电隔值 2.9V 可预设无涓流充
电模式 软启动，
有效限制冲击电流
RoHS SOT-23-5L 封装
应用范围 返回TOP
手持电话，PDA，MP4 / MP3
蓝牙设备
充电器
技术规格书（产品PDF) 返回TOP
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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......
| 线性单节锂电充电IC | ||||||||
| 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 | 涓流充电截止电压 | 功耗 | 封装形式 |
| CXLB7244 | 4.2V | 4.5-12V | 200mA | 4.2V | ±1% | 2.9V | 55uA | SOT23-6 |
| CXLB7245DR | 4.2V | 4.5-6.0V | 300mA | 4.2V | ±1% | 2.9V | 350uA | DFN2*3-8 |
| CXLB7246DR | 4.2V | 4.25-6.5V | 200mA | 4.2V | ±1% | 2.9V | 350uA | DFN2*3-8 |
| CXLB7246MR | 4.2V | 4.25-6.5V | 200mA | 4.2V | ±1% | 2.9V | 150uA | SOT-25 |
| CXLB7247 | 4.2V | 4.25-6.5V | 1.2A | 4.2V | ±1% | 2.9V | 25uA | ESOP8 |
| CXLB7247ADR | 4.2V | 4.5-12V | 1A | 4.2V | ±1% | 2.9V | 55uA | DFN3*3-8 |
| CXLB7247B | 3.6V/4.2V | 4.25-6.5V | 1.2A | 3.6V-4.2V | ±1% | 2.9V | 25uA | ESOP8 |
| CXLB7247DR | 4.2V | 4.5V-8V | 1A | 4.2V | ±1% | 2.9V | 55uA | DFN3*3-8 |
| CXLB7248 | 4.2V | 4.25-6.5V | 800mA | 4.2V | ±1% | 2.9V | 25uA | SOT23-5 |
| CXLB7248B | 4.2V | 4.25-6.5V | 800mA | 4.2V | ±1% | 2.9V | 25uA | SOT23-5 |
| CXLB7248C | 4.2V | 4.25-6.5V | 500mA | 4.2V | ±1% | 2.9V | 25uA | SOT23-5 |
| CXLB7248D | 4.35V | 4.25-6V | 800mA | 4.35V | ±1% | 2.9V | 25uA | SOT23-5 |
| CXLB7249 | 4.2V | 4.25-6.5V | 800mA | 4.2V | ±1% | 2.9V | 85uA | SOT23-5 |
| CXLB7249B | 3.7V | 4-7V | 500mA | 3.7V | ±1% | 2.5V | 250uA | SOT23-5 |
| CXLB7249C | 2.8V | 4-7V | 500mA | 2.8V | ±1% | 2.0V | 250uA | SOT23-5 |
| CXLB7249D | 4.35V | 4.25-6.5V | 800mA | 4.35V | ±1% | 2.9V | 85uA | SOT23-5 |
| CXLB7250 | 4.2V | 4.0-8.0V | 1200mA | 4.2V | ±1% | 2.9V | 55uA | ESOP8 |
| CXLB7250A | 4.2V | 4.0-8.0V | 1200mA | 4.2V | ±1% | 2.9V | 55uA | ESOP8 |
| CXLB7250B | 4.35V | 4.0-8.0V | 1200mA | 4.35V | ±1% | 2.9V | 55uA | ESOP8 |
| CXLB7250C | 4.2V | 4.25-7.0V | 1000mA | 4.2V | ±1% | 2.9V | 55uA | ESOP8 |
| CXLB7250DR | 4.2V | 4.25-7.0V | 1000mA | 4.2V | ±1% | 2.9V | 50uA | DFN2X2-6L |
| CXLB7251 | 4.2V | 4.25-6.0V | 750mA | 4.2V | ±1% | 2.9V | 25uA | SOT23-6 |
| CXLB7251A | 4.2V | 4.25-6.0V | 800mA | 4.2V | ±1% | 2.9V | 25uA | SOT23-6 |
| CXLB7251B | 4.35V | 4.5-6.5V | 700mA | 4.35V | ±1% | 2.9V | 80uA | SOT-26 |
| CXLB7251C | 4.2V | 4.25-6.5V | 500mA | 4.2V | ±1% | 2.9V | 25uA | SOT-26 |
| CXLB7251D | 4.2V | 4.5-18V | 800mA | 4.2V | ±1% | 2.9V | 70uA | SOT-26 |
| CXLB7252 | 4.2V | 3.8-6.5V | 1A/0.5A | 4.2V | ±1% | 2.9V | 450uA | ESOP8/SOP8 |
| CXLB7253 | 4.2V | 4.5-7V | 扩流3A | 4.2V | ±1% | 2.9V | 1mA | SOP-8 |
| CXLB7366 | 4.2V | 4.5-12V | 700mA | 4.2V | ±1% | 2.9V | 55uA | SOT23-5 |
| CXLB7367 | 4.2V | 4.5-12V | 700mA | 4.2V | ±1% | 2.9V | 55uA | SOT23-6 |
| CXLB7254 | 4.2V | 4.25-6.5V | 1000mA | 4.2V | ±1% | 2.9V | 50uA | ESOP8 |
| CXLB7368 | 4.2V | 4.5-12V | 1000mA | 4.2V | ±1% | 2.9V | 55uA | ESOP8 |
| CXLB7255 | 4.2V | 4.5-5.5V | 800mA | 4.2V | ±1% | 2.9V | 48uA | DFN3*3-10 |
| CXLB7256 | 4.2V | 4.5V-18V | 1.3A | 4.2V | ±1% | 2.9V | 48uA | SOP8 |
| CXLB7256A | 4.2V | 4.5-18V | 1.6A | 4.2V | ±1% | 2.9V | 7uA | SOP-8 |
