Datasheet > LM3620M5-4

LM3620M5-4

更新时间： 2024-11-03 22:07:51

品牌	Logo	应用领域
美国国家半导体 - NSC		电池控制器
页数	文件大小	规格书
6页	143K
描述
Lithium-Ion Battery Charger Controller

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LM3620M5-4 数据手册

June 1999

LM3620

Lithium-Ion Battery Charger Controller

With a trimmed output voltage regulation of 1.2% initial ac-

curacy, the LM3620 provides a simple, precise solution for

end-of-charge control of lithium-ion rechargeable cells.

General Description

The LM3620 series of controllers are monolithic integrated

circuits designed to control the charging and end-of-charge

control for lithium-ion rechargeable batteries. The LM3620 is

available in two versions for one or two cell charger applica-

tions. Each version provides the option of selecting the ap-

propriate termination voltage for either coke or graphite an-

ode lithium cells.

The LM3620 is packaged in a miniature 5-lead SOT-23 sur-

face mount package for very compact designs.

Features

n Voltage options for charging 1 or 2 cell stacks

n Adjustable output voltage for coke or graphite anodes

n Precision end-of-charge voltage control

n Wide input voltage range (4V to 30V)

The LM3620 can operate from a wide range of DC input

sources (4V to 30V). With no charger supply connected, the

controller draws a quiescent current of only 10nA to minimize

discharging of a connected battery pack.

n Low off state current ( 10nA)

The LM3620 consists of an operational transconductance

amplifier, a bandgap voltage reference, a NPN driver transis-

tor and precision voltage setting resistors. The output of the

amplifier is made available to drive an external power tran-

sistor if higher drive currents are required.

n Drive provided for external power stage

n Tiny SOT-23 package

Typical Application

DS100841-10

DS100841

www.national.com

12 3 4 5 6

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与LM3620M5-4相关器件

型号	品牌	获取价格	描述	数据表
LM3620M5-4/NOPB	TI	获取价格	BATTERY CHARGE CONTROLLER, PDSO5, SOT-23, 5 PIN
LM3620M5-8	NSC	获取价格	Lithium-Ion Battery Charger Controller
LM3620M5-8/NOPB	TI	获取价格	BATTERY CHARGE CONTROLLER, PDSO5, SOT-23, 5 PIN
LM3620M5X-4	NSC	获取价格	Lithium-Ion Battery Charger Controller
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LM3620M5X-8	NSC	获取价格	Lithium-Ion Battery Charger Controller
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LM3621	NSC	获取价格	Single Cell Lithium-Ion Battery Charger Controller
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