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LM3621MX/NOPB PDF预览

LM3621MX/NOPB

更新时间: 2024-11-04 15:42:23
品牌 Logo 应用领域
德州仪器 - TI 光电二极管
页数 文件大小 规格书
15页 375K
描述
IC,BATTERY MANAGEMENT,SOP,16PIN,PLASTIC

LM3621MX/NOPB 技术参数

是否Rohs认证: 符合生命周期:Obsolete
包装说明:SOP, SOP16,.25Reach Compliance Code:compliant
风险等级:5.84JESD-30 代码:R-PDSO-G16
JESD-609代码:e3湿度敏感等级:1
端子数量:16最高工作温度:70 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP16,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
电源:4.2 V认证状态:Not Qualified
子类别:Power Management Circuits最大供电电流 (Isup):5 mA
标称供电电压 (Vsup):4.2 V表面贴装:YES
温度等级:COMMERCIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUALBase Number Matches:1

LM3621MX/NOPB 数据手册

 浏览型号LM3621MX/NOPB的Datasheet PDF文件第2页浏览型号LM3621MX/NOPB的Datasheet PDF文件第3页浏览型号LM3621MX/NOPB的Datasheet PDF文件第4页浏览型号LM3621MX/NOPB的Datasheet PDF文件第5页浏览型号LM3621MX/NOPB的Datasheet PDF文件第6页浏览型号LM3621MX/NOPB的Datasheet PDF文件第7页 
May 1998  
LM3621  
Single Cell Lithium-Ion Battery Charger Controller  
n Less than 1 µA current drain from fully charged battery  
n Preconditioning severely discharged cells (0V to 2.55V)  
General Description  
The LM3621 is a full function constant voltage, constant  
current (CVCC) lithium-ion (Li+) battery charger controller. It  
provides 1% regulation accuracy over the specified tempera-  
ture range without requiring the use of external precision  
resistors. The IC controls five charge modes: conditioning,  
fast, top-off, monitor and maintenance. In addition, the  
LM3621 detects and flags defective batteries as well as over  
current and over voltage fault events. The architecture of the  
IC is based on high gain constant voltage and constant  
current control loops.  
Features  
n Automatic end-of-charge control  
n Preset or user adjustable charge current regulation  
n LED drivers for charging status and fault indication  
n Battery self-discharge refresh (maintenance)  
n Overvoltage/overcurrent fault detection and protection  
n Defective battery pack detection  
n Charge current boost control for cellular phone  
applications  
n Charge interruption control input  
The LM3621 is designed to control a switching charger, a  
linear charger or an off-line ac adapter charger.  
The LM3621 consists of a logic controller, precision bandgap  
reference, wide bandwidth transconductance error amplifi-  
ers, comparators, and an output buffer. The LM3621 is avail-  
able in a 16-pin SOIC package and is specified over the  
range of 0˚C to 70˚C.  
Applications  
n Complete, full function, protected battery charger for  
coke or graphite anode, single cell Lithium-Ion battery  
packs  
n Linear voltage regulator controlled chargers  
n High efficiency switching regulator controlled chargers  
n Cost effective wall adapter chargers  
Key Specifications  
n Tight output voltage accuracy ( 0.5% at TA = 25˚C)  
n Two selectable output voltages (4.2V or 4.1V)  
Typical Application  
10010707  
1A, 4.1V CVCC Linear Charger for Graphite Anode Lithium-Ion Battery  
© 2004 National Semiconductor Corporation  
DS100107  
www.national.com  

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