Datasheet > AAT3683_08

AAT3683_08

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
ANALOGICTECH		电池
页数	文件大小	规格书
23页	450K
描述
1A Linear Li-Ion Battery Charger

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PRODUCT DATASHEET

AAT3683

BatteryManager^TM

1A Linear Li-Ion Battery Charger

General Description

Features

The AAT3683 BatteryManager is a highly integrated sin-

gle-cell lithium-ion / polymer (Li-Ion) battery charger

that operates from a USB port or an AC adapter input up

to an input voltage of 7.5V.

• USB or AC Adapter Input

• Programmable from 100mA to 1A

• 4.0V to 7.5V Input Voltage Range

• High Level of Integration with Internal:

Charging Device

Reverse Blocking Diode

Current Sensing

▪

The AAT3683 precisely regulates battery charge voltage

and current for 4.2V Li-Ion battery cells. The battery

charging current can be set by an external resistor up to

1A.

▪

• Digital Thermal Regulation

• Charge Current Programming (ISET)

• Charge Termination Current Programming (TERM)

• Charge Timer (CT)

• Battery Temperature Sensing (TS)

• TS Pin Open Detection

Digital Thermal Loop Control maintains the maximum

possible battery charging current for the given set of

input to output power dissipation and ambient tempera-

ture conditions.

• Automatic Recharge Sequencing

• Automatic Trickle Charge for Battery Pre-Conditioning

(no trickle charge option available)

• Full Battery Charge Auto Turn-Off / Sleep Mode /

Charge Termination

• 1μA Max. Shutdown Current

• Over-Voltage and Over-Current Protection

• Emergency Thermal Protection

Battery charge state is continuously monitored for fault

conditions. In the event of an over-current, over-voltage,

short-circuit, or over-temperature condition, the device

will shut down automatically, thus protecting the charg-

ing device, control system, and the battery under

charge. A status monitor output pin is provided to indi-

cate the battery charge status by directly driving an

external LED. An open-drain power source detection out-

put is provided to report the power supply status.

• Power On Reset and Soft Start

• 2.2x2.2mm STDFN-10 (AAT3863-2 and -3) and

QFN33-16 (AAT3683-4) Packages

The AAT3683 is available in the Pb-free, thermally-

enhanced, space-saving 2.2x2.2mm 10-pin STDFN

(AAT3683-2 and -3) and 16-pin QFN33 (AAT3683-4)

packages and is specified for operation over the

-40°C to +85°C temperature range.

Applications

• Bluetooth Headsets, Headphones, Accessories

• Cellular Phones

• Digital Still Cameras

• MP3, Portable Music, and Portable Media Players

• Personal Data Assistants (PDAs) and Handheld

Computers

• Other Li-Ion Battery-Powered Devices

Typical Application

ENABLE

BATT+

VIN

BAT

VIN

BAT

C_IN

C_BAT

C_IN

C_BAT

BATT-

R_T

TERM

BATT-

TERM

AAT3683-2

R_TERM

AAT3683-4

R_TERM

STAT

ADPP#

TEMP

STAT1

TEMP

STAT2

ISET

Battery

Pack

ISET

C_T

GND

Battery

Pack

R_SET

C_T

GND

R_SET

w w w . a n a l o g i c t e c h . c o m

3683.2007.11.1.2

12 3 4 5 6 7...23

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