Datasheet > AAT3682ISN-4.2-T1

AAT3682ISN-4.2-T1

更新时间： 2024-02-16 13:00:35

品牌	Logo	应用领域
ANALOGICTECH		电池
页数	文件大小	规格书
18页	234K
描述
Lithium-Ion/Polymer Linear Battery Charger

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AAT3682

Lithium-Ion/Polymer Linear Battery Charger

™

BatteryManager

General Description

Features

The AAT3682 is a lithium-ion/polymer linear battery

charger. It is designed for compact portable appli-

cations with a single cell battery. The AAT3682 pre-

cisely regulates battery charge voltage and charge

current, and offers an integrated pass device, mini-

mizing the number of external components required.

•

V_INRange: 4.7V to 6.0V

Low Quiescent Current, Typically 0.5mA

1% Accurate Preset Voltage

Up to 1A of Charging Current

Integrated Pass Device

Battery Temperature Monitoring

Fast Trickle Charge Option

Deep Discharge Cell Conditioning

LED Charge Status Output or System

Microcontroller Serial Interface

Power-On Reset

The AAT3682 charges the battery in three different

phases: preconditioning, constant current, and con-

stant voltage. In preconditioning mode, the charge

current has two different levels and is controlled by

one external pin. Battery charge temperature and

charge state are carefully monitored for fault condi-

tions. A battery charge stable monitor output pin is

provided to indicate the battery charge status

through a display LED or interface to a system con-

troller. The AAT3682 has the sleep mode option for

when the input supply is removed. In this mode, it

draws only 2.0µA of typical current.

•

Lower Power Sleep Mode

Status Outputs for LED or System Interface

Indicates Charge and Fault Conditions

Temperature Range: -20°C to +70°C

16-Pin QFN44 Package

•

The AAT3682 is available in a 16-pin QFN44 and is

specified over the -20°C to +70°C temperature

range.

Applications

•

Cellular Telephones

Digital Still Cameras

Hand-Held PCs

MP3 Players

Personal Data Assistants (PDAs)

Typical Application

Adapter

BAT

T2X

BATT+

R_SENSE

R₃

R₄

C_OUT= 1µF

Gate

DRV

BSENSE

BATT-

R_T1

CSI

VCC

STAT

C_IN= 10µF

TEMP

VSS

LED 1

R₂= 1K

R_T2

3682.2005.02.1.1

12 3 4 5 6 7...18

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