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参数资料
| 型号： | LM3420A-8.4MWA |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC |
| 封装： | WAFER |
| 文件页数： | 13/21页 |
| 文件大小： | 468K |
| 代理商： | LM3420A-8.4MWA |
National P/N LM3420 - Lithium-Ion Battery Charge Controller
LM3420M5X-4.2
5
MSL Full production N/A
N/A
1K+
$0.9000
reel
of
3000
D02B
Z1T
LM3420M5X-8.2
5
MSL Full production N/A
N/A
1K+
$0.9000
reel
of
3000
D07B
Z1T
LM3420M5X-8.4
5
MSL Full production N/A
N/A
1K+
$0.9000
reel
of
3000
D03B
Z1T
LM3420A-4.2 MDA
Full production
N/A
N/A Samples
tray
of
N/A
-
LM3420A-8.2 MDA
Full production
N/A
N/A Samples
tray
of
N/A
-
LM3420A-8.4 MDA
Full production
N/A
N/A Samples
tray
of
N/A
-
LM3420A12.6 MDA
Full production
N/A
N/A Samples
tray
of
N/A
-
LM3420A16.8 MDA
Full production
N/A
N/A Samples
tray
of
N/A
-
LM3420A-4.2 MWA
Full production
N/A
wafer jar
of
N/A
-
LM3420A-8.2 MWA
Full production
N/A
wafer jar
of
N/A
-
LM3420A-8.4 MWA
Full production
N/A
wafer jar
of
N/A
-
LM3420A12.6 MWA
Full production
N/A
wafer jar
of
N/A
-
LM3420A16.8 MWA
Full production
N/A
wafer jar
of
N/A
-
General Description
The LM3420 series of controllers are monolithic integrated circuits designed for charging and end-of-charge
control for Lithium-Ion rechargeable batteries. The LM3420 is available in five fixed voltage versions for one
through four cell charger applications (4.2V, 8.2V/8.4V, 12.6V and 16.8V respectively).
Included in a very small package is an (internally compensated) op amp, a bandgap reference, an NPN
output transistor, and voltage setting resistors. The amplifier's inverting input is externally accessible for
loop frequency compensation. The output is an open-emitter NPN transistor capable of driving up to 15 mA
of output current into external circuitry.
A trimmed precision bandgap reference utilizes temperature drift curvature correction for excellent voltage
stability over the operating temperature range. Available with an initial tolerance of 0.5% for the A grade
version, and 1% for the standard version, the LM3420 allows for precision end-of-charge control for Lithium-
Ion rechargeable batteries.
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM3420.html (3 of 4) [09-Aug-2002 12:24:26 PM]
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM3420AL-4.2 DIE | 制造商:Texas Instruments 功能描述: |
| LM3420AL-8.2 WAF | 制造商:Texas Instruments 功能描述: |
| LM3420AM5-12.6 | 功能描述:IC CTRLR LIION BAT CHRG SOT23-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:1 系列:- 功能:充电管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:3.75 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:剪切带 (CT) 产品目录页面:669 (CN2011-ZH PDF) 其它名称:MCP73831T-2ACI/OTCT |
| LM3420AM5-12.6/NOPB | 制造商:Texas Instruments 功能描述:Battery Charger Li-Ion 15mA 12.6V 5-Pin SOT-23 T/R |
| LM3420AM5-16.8 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Lithium-Ion Battery Charge Controller |
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