SE9020C {wn}充电器专用IC
产品种类：{wn}充电器专用线性IC
器件型号：SE9020C、SE9020D
封装外形：SOT-23-6Pin、DIP-8Pin、COB
型号说明：SE9020C：LED七彩灯线路
SE9020D：LED两灯线路
销售联络：手机：13603016645；QQ：511326471
锂电池充电器、{wn}充专用线性IC
产品描述
SE9020是一个完整的极限电流和单节锂离子电池和锂聚合物电池恒压充电专用集成电路。
它采用SOT-23-6L封装和很少的外部元件数量，使便携式应用的理想选择适合SE9020。
同时也可提供DIP-8封装、及COB邦定封装。
SE9020也是专为出差旅行用的便携式充电器设计的电路。
SE9020有内置的探测器将自动检测插入的电池极性充电和正确的电池极性。
充电电压固定于4.2V。
在SE9020自动终止充电循环后，最终浮动电压时，充电电流降至14毫安为止。
当输入电源被去掉，SE9020自动进入低电流的阶段，将电池漏电流低于7毫安。
该SE9020可置于停机模式，减少了电源电流降至30uA电流。
SE9020支持两个LED驱动器，让客户可以选择适合选择哪种方法在各自的应用程序的{zj0}。
一个LED驱动器内部设定为显示/关闭电源的集成电路。
另一个LED驱动器，可以驱动标准LED或7色LED芯片，将在详细规格书中解释应用。
产品特征
自动识别电池的极性。
典型电流250毫安。
短路保护。
节省外部元件。
建立在高精度参考电压。
预设4.2V充电电压，精度为±1%。
关断电源电流20uA。
支持独立电池充电器。
支持两个2-LED和闪烁的LED方案。
采用6引脚SOT-23-6及DIP-8智能芯片封装。
符合RoHS的100％无铅（Pb）环保要求。
更多参考 单击以下文字下载PDF文档
2009-12-23
Standalone Linear Lithium Battery Charger
Description
SE9020 is a complete Limit-current & constant voltage charger for single cell Lithium-ion and Lithium-Polymer batteries. Its SOT-23-6L package and low external component count make SE9020 ideally suited for portable applications. Furthermore, the SE9020 is specifically designed to work within Universal Travel Charger.
SE9020 has a built-in detector that will automatically detect the polarity of the inserted battery and charge the battery at the correct the polarity. The charge voltage is fixed at 4.2V. The SE9020 automatically terminates the charge cycle when the charge current drops to 14mA after the final float voltage is reached.
When the input supply is removed, the SE9020 automatically enters a low current stage, dropping the battery drain current to less than 7mA. The SE9020 can be put into shutdown mode, reducing the supply current to 30uA.
SE9020 supports two LED drivers that give the customers the option to select which method fit best in their respective applications. On
Features
Automatically Identifies the polarity of the battery
Typical-Current to 250mA
Short-Circuit Protection
Low external component
Build in high precision reference voltage
Preset 4.2V Charge Voltage with ±1% Accuracy.
20uA Supply Current in Shutdown.
Support Standalone Battery Charger.
Support both 2-LED and Flashing LED schemes.
Available in 6-Lead SOT-23-6L DIP-8 and COB Packages.
RoHS Compliant and {bfb} Lead (Pb)-Free.
