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LM3621M-3.0 PDF预览

LM3621M-3.0

更新时间: 2024-09-30 22:10:51
品牌 Logo 应用领域
美国国家半导体 - NSC 电源电路电池电源管理电路光电二极管控制器
页数 文件大小 规格书
14页 337K
描述
Single Cell Lithium-Ion Battery Charger Controller

LM3621M-3.0 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:SOP,Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.78Is Samacsys:N
模拟集成电路 - 其他类型:BATTERY CHARGE CONTROLLER最大输入电压:5.5 V
最小输入电压:3 V标称输入电压:4.2 V
JESD-30 代码:R-PDSO-G16JESD-609代码:e0
长度:9.902 mm功能数量: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封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:1.753 mm
表面贴装:YES切换器配置:SINGLE
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3.9 mmBase Number Matches:1

LM3621M-3.0 数据手册

 浏览型号LM3621M-3.0的Datasheet PDF文件第2页浏览型号LM3621M-3.0的Datasheet PDF文件第3页浏览型号LM3621M-3.0的Datasheet PDF文件第4页浏览型号LM3621M-3.0的Datasheet PDF文件第5页浏览型号LM3621M-3.0的Datasheet PDF文件第6页浏览型号LM3621M-3.0的Datasheet PDF文件第7页 
March 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 cur-  
rent (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 re-  
sistors. 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 cur-  
rent 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 lin-  
ear 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  
DS100107-7  
1A, 4.1V CVCC Linear Charger for Graphite Anode Lithium-Ion Battery  
© 1998 National Semiconductor Corporation  
DS100107  
www.national.com  

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