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參數(shù)資料
| 型號(hào)： | LM3621M |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Single Cell Lithium-Ion Battery Charger Controller |
| 中文描述： | BATTERY CHARGE CONTROLLER, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 334K |
| 代理商： | LM3621M |
LM3621
Single Cell Lithium-Ion Battery Charger Controller
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.
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 0C to 70C.
Key Specifications
n
Tight output voltage accuracy (
±
0.5% at T
A
= 25C)
n
Two selectable output voltages (4.2V or 4.1V)
n
Less than 1 μA current drain from fully charged battery
n
Preconditioning severely discharged cells (0V to 2.55V)
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
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
Typical Application
DS100107-7
1A, 4.1V CVCC Linear Charger for Graphite Anode Lithium-Ion Battery
March 1998
L
1998 National Semiconductor Corporation
DS100107
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM3621 | Single Cell Lithium-Ion Battery Charger Controller |
| LM3622M-4.1 | Lithium-Ion Battery Charger Controller |
| LM3622M-4.2 | Card Edge Connector; Contact Termination:Solder; Leaded Process Compatible:Yes RoHS Compliant: Yes |
| LM3622M-8.2 | Lithium-Ion Battery Charger Controller |
| LM3622M-8.4 | Lithium-Ion Battery Charger Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3621M/NOPB | 功能描述:IC CTRLR LI-ION BAT CHRG 16-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT |
| LM3621M-3.0 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Single Cell Lithium-Ion Battery Charger Controller |
| LM3621MX | 功能描述:IC CTRLR LI-ION BAT CHRG 16-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT |
| LM3621MX/NOPB | 制造商:Texas Instruments 功能描述:Charge Controller Li-Ion 20mA 4.1V/4.2V 16-Pin SOIC N T/R |
| LM3622 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Lithium-Ion Battery Charger Controller |
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