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1、,第卷第期重庆教育学院学报《抖吐朗抖年月一一一文章编号!抖加锉电池线性充电管理芯片吐及其应用李健田航,《乃肠重庆邮电学院器材及实验室管理处重庆,、摘要本文介绍凌特公司的最新祖电池充电芯片锁又仍介绍了该芯片的特性功能以及应用过程中的注意事项利用曰毛帕充电芯片及非常简单的几个外围元件可设计成本非常低的单节祖电池充电器,由于其超小型的封装,非常适合于便携式电子设备的该芯片还能从端口,无须外接小型化设计取电工作,,、电源特别适
2、合用于电脑的周边设备中如玛掌上电脑等本文给出了使用扣设计的典型充电电路拍关键词枉电池充电器十中图分类号犷趁文献标识码前言〔’,用是凌特公司的最新怪电池充电芯片它是专为单节锉电池充电需要设计的单片集成芯片扣设计的充电器只需几个元件,非常简洁!在工作中无须专门的散热器,就可对电池进行大电流的充电,而且可以从,,、、端口取电工作非常适合用于电脑的周边设备中如玛掌上电脑数码录音笔等该芯片有以下特性可编程充电电流达、无须外接凡汀传感电阻和隔离二极管、超小型物
3、封装的完整的用于单节理离子电池充电管理芯片带温度控制的最大充电率的恒流恒压充电模式可直接从接口对单节锉离子电池充电预置,充电电压,精度达土充电电流监测输出自动重充充电状态输出引脚口的充电终止控制关闭时仅泌电源电流低于的涓流预充电甲斗闭涓流预充电功能无效软启动,限制冲击电流功能及应用,,是一个完整的单节铿离子电池恒流恒压线性充电器超小型封装伽和仅需极少外围元件这使,,特别适合便携式设备此外能从供电工作内置
4、而无须传感电阻和隔离二极管在大功率工作和环境温度高的情况下,温度补偿能限制充电电流以防温度超常充电电压设定在,充电电流可由单个外接电阻控制当达到最后浮充电压后,充电电流降至设定值的时,帕自动中止充电周期当输人电源墙上适,,配器或电源中断时扣自动进人超低电流状态电池消耗电流小于卜进人关闭状态后电源电流降至卜极限参数如下所示·······························,·······················································
5、·······。一收稿日期一一作者简介李健一,男,四川威远县人,重庆邮电学院器材及实验室管理处,工程师················································································································一,··························,······························,··········
6、··············································一·····························································································一沈此……············································································································
7、···乃七……····································································,·····································……泌····························································································
