參數(shù)資料
型號(hào)： LM3420AM5X-4.2
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 電源管理
英文描述： Lithium-Ion Battery Charge Controller
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封裝： MINIATURE, SOT-23, 5 PIN
文件頁(yè)數(shù)： 1/17頁(yè)
文件大?。?/td> 384K
代理商： LM3420AM5X-4.2
LM3420-4.2, -8.2, -8.4, -12.6, -16.8
Lithium-Ion Battery Charge Controller
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 respec-
tively).
Included in a very small package is an (internally compen-
sated) op amp, a bandgap reference, an NPN output transis-
tor, and voltage setting resistors. The amplifier’s inverting in-
put
is
externally
accessible
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 tol-
erance of 0.5% for the A grade version, and 1% for the stan-
dard version, the LM3420 allows for precision end-of-charge
control for Lithium-Ion rechargeable batteries.
for
loop
frequency
The LM3420 is available in a sub-miniature 5-lead SOT23-5
surface mount package thus allowing very compact designs.
Features
n
Voltage options for charging 1, 2, 3 or 4 cells
n
Tiny SOT23-5 package
n
Precision (0.5%) end-of-charge control
n
Drive capability for external power stage
n
Low quiescent current, 85 μA (typ.)
Applications
n
Lithium-Ion battery charging
n
Suitable for linear and switching regulator charger
designs
Typical Application and Functional Diagram
SIMPLE SWITCHER
is a registered trademark of National Semiconductor Corporation.
DS012359-1
Typical Constant Current/Constant Voltage
Li-Ion Battery Charger
DS012359-2
LM3420 Functional Diagram
July 2000
L
2000 National Semiconductor Corporation
DS012359
www.national.com
相關(guān)PDF資料
PDF描述
LM3420M5-12.6 Lithium-Ion Battery Charge Controller
LM3420M5-16.8 Lithium-Ion Battery Charge Controller
LM3420AM5X-8.2 Lithium-Ion Battery Charge Controller
LM3420M5X-8.2 Lithium-Ion Battery Charge Controller
LM3420AM5X-8.4 Lithium-Ion Battery Charge Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM3420AM5X-8.2 功能描述:IC CTRLR LI-ION BAT CHRG SOT23-5 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(yè)面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT
LM3420AM5X-8.4 功能描述:IC CTRLR LI-ION BAT CHRG SOT23-5 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(yè)面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT
LM3420AM5X-8.4/NOPB 制造商:Texas Instruments 功能描述:Battery Charger Li-Ion 15mA 8.4V 5-Pin SOT-23 T/R
LM3420M5-12.6 功能描述:IC CTRLR LIION BAT CHRG SOT23-5 RoHS:否 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(yè)面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT
LM3420M5-12.6/NOPB 制造商:Texas Instruments 功能描述:Battery Charger Li-Ion 15mA 12.6V 5-Pin SOT-23 T/R
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*