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LM3658SD

更新时间: 2024-09-25 21:55:39
品牌 Logo 应用领域
美国国家半导体 - NSC 电源电路电源管理电路便携式
页数 文件大小 规格书
13页 662K
描述
Dual Source USB/AC Li Chemistry Charger IC for Portable Applications

LM3658SD 技术参数

是否Rohs认证: 不符合生命周期:Transferred
零件包装代码:SON包装说明:3 X 3 MM, LLP-10
针数:10Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.13可调阈值:YES
模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUITJESD-30 代码:S-XDSO-N10
JESD-609代码:e0长度:3 mm
湿度敏感等级:1信道数量:1
功能数量:1端子数量:10
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:UNSPECIFIED封装代码:HVSON
封装等效代码:SOLCC10,.11,20封装形状:SQUARE
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):260
电源:5 V认证状态:Not Qualified
座面最大高度:0.8 mm子类别:Power Management Circuits
最大供电电压 (Vsup):6 V最小供电电压 (Vsup):4.5 V
标称供电电压 (Vsup):5 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:NO LEAD端子节距:0.5 mm
端子位置:DUAL处于峰值回流温度下的最长时间:40
宽度:3 mmBase Number Matches:1

LM3658SD 数据手册

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May 2005  
LM3658  
Dual Source USB/AC Li Chemistry Charger IC for  
Portable Applications  
General Description  
Features  
n Integrated power FETs with thermal regulation  
The LM3658 is a single chip charger IC designed for hand-  
held applications. It can safely charge and maintain a single  
cell Li-Ion/Polymer battery operating from an AC wall  
adapter or USB power source. Input power source selection  
of USB/AC is automatic. With both power sources present,  
the AC power source has priority. Charge current is pro-  
grammed through an external resistor when operating from  
an AC wall adapter allowing charge currents from 50 mA to  
1000 mA. When the battery is charged using USB power,  
charge currents of 100 mA or 500 mA are pin-selectable. The  
termination voltage is controlled to within 0.35% of 4.2V.  
n Charges from either an AC wall adapter or USB power  
source with automatic source selection  
n 50 mA to 1000 mA charge currents using AC wall  
adapter  
n Pin-selectable USB charge currents of 100 mA or  
500 mA  
n Continuous battery temperature monitoring  
n Built-in multiple safety timers  
n Charge status indication  
n Continuous over-current and temperature protection  
n Near-depleted battery pre-conditioning  
n Sleep mode with ultra low quiescent current  
n On-board Kelvin-sensing achieves 0.35% termination  
accuracy  
The LM3658 requires few external components and inte-  
grates internal power FETs, reverse current protection and  
current sensing. The internal power FETs are thermally regu-  
lated to obtain the most efficient charging rate for a given  
ambient temperature.  
n Maintenance mode with automatic recharge  
n Thermally enhanced 3 mm x 3 mm LLP package  
The LM3658 operates in five modes: pre-qualification mode,  
constant-current mode, constant-voltage mode, top-off  
mode and maintenance mode. Optimal battery management  
is obtained through thermal regulation, battery temperature  
measurement and multiple safety timers. The LM3658 pro-  
vides two open-drain outputs for LED status indication or  
connection to GPIOs.  
Applications  
n Smartphones  
n Digital still cameras  
n PDAs  
n Hard Drive and flash-based MP3 players  
n USB-powered devices  
Typical Application  
20128201  
© 2005 National Semiconductor Corporation  
DS201282  
www.national.com  

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