连云港升降压充电芯片

ASC405允许出厂配置预充电电流/截止电流/CV 电 压和输入过压保护门限，其集成高压输入保护电路 可以承受高达 38V 的输入浪涌电压。 具有电池温度 NTC 监测、充电**时保护、输入过压、电池过压、热保护和状态指示等功能。
应用领域：
•手持设备                   
• PDVD，PDA 和智能手机                                 
• 笔记本电脑                
• 自充电电池组             
•立充电器 
•拉杆音响

特点：
适用于 2-3-4 节， 5-7-9 或 6-8-10 节锂离 子/锂聚合物率同步 Buck 充电器                                                                                 8V-60V 宽输入电压范围                                                                 
20mΩ充电电流检测电阻                                                                 
充电电流 10A，                                                                       
0.5％的充电电压控制精度                                                             
可选择电池节数： ASC6220A-2,3 或者 4 节 ASC6220B-5,7 或者 9 节 ASC6220C-6,8 或者 10 节 ASC6220D- 12V，18V，24V 铅酸         
4%的可编程充电电流控制精度                                                        
•恒压充电电压值可通过外接电阻微调                                               
• 智能电池检测                                                                                 
•支持充电器输出与电池间的电阻补偿                                              
• 内置软启动                                                                                     
• 开关频率 400/300KHz                                                                     
•LED 充电状态指示                                                                           
•电池短路检测，保护                                                                      
• 内置过温关断                                                                                 
• 输出充电电流信息                                                                         
• 电池充电过压保护                                                                          
• Cycle-by-cycle 限流                                                                        
•外置电池温度检测                                                                            
•外置 ISET 脚充电使能                                                                      
• 睡眠模式电池功耗小于 15uA                                                             
•外置充电时间限制                                                                           
•工作环境温度范围：-20℃～85℃                                                      
•TSSOP-20 或 QFN-20 封装

大电流充电IC
型号：ASC6220锂电池1~10串充电管理IC

详情介绍：
ASC6220 为同步开关型锂离子/锂 聚合物电池充电管理芯片，非常适合于便携 式设备的充电管理应用。 ASC6220 集高精度电压和输入电流及 充电电流调节器、预充、充电状态指示和充 电截止等功能于一体，采用 TSSOP-20 或者 QFN-20 封装。 ASC6220 对电池充电分为三个阶段： 预充（ Pre-charge ）、恒流（CC/Constant Current）、恒压（CV/Constant Voltage）过程， 恒流充电电流通过外部分压电阻决定，恒压 充电电压可通过外部电阻微调。 ASC6220 集成电池温度检测，过压及 短路保护，确保充电芯片工作。 ASC6220 集成智能电池检测功能及**时错 误恢复功能，方便用户使用。
应用领域：
•蓝牙锂电池应用 
• 
•便携式锂电池笔记本 
•锂电池手机，PDA，MP3 和 PM4 播放器 
•PSP 和 NDS 便携式游戏机等
http://lemnker.b2b168.com